{"id":4035054,"date":"2026-05-17T15:19:55","date_gmt":"2026-05-17T15:19:55","guid":{"rendered":"https:\/\/www.electricteeth.com\/uk\/?p=4035054"},"modified":"2026-05-17T15:30:01","modified_gmt":"2026-05-17T15:30:01","slug":"oral-b-io4-review","status":"publish","type":"post","link":"https:\/\/www.electricteeth.com\/uk\/oral-b-io4-review\/","title":{"rendered":"Oral-B iO4 Review"},"content":{"rendered":"<figure class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/uploads\/sites\/3\/2023\/11\/Oral_B_iO_Series_4_In_Hand.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" style=\"object-fit:cover;\" srcset=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/uploads\/sites\/3\/2023\/11\/Oral_B_iO_Series_4_In_Hand.jpg 1200w, https:\/\/www.electricteeth.com\/uk\/wp-content\/uploads\/sites\/3\/2023\/11\/Oral_B_iO_Series_4_In_Hand-300x169.jpg 300w, https:\/\/www.electricteeth.com\/uk\/wp-content\/uploads\/sites\/3\/2023\/11\/Oral_B_iO_Series_4_In_Hand-768x432.jpg 768w, https:\/\/www.electricteeth.com\/uk\/wp-content\/uploads\/sites\/3\/2023\/11\/Oral_B_iO_Series_4_In_Hand-100x56.jpg 100w, https:\/\/www.electricteeth.com\/uk\/wp-content\/uploads\/sites\/3\/2023\/11\/Oral_B_iO_Series_4_In_Hand-450x253.jpg 450w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\"><\/figure>\n\n            <section  class=\"my-12\">\n                <div class=\"sm:p-14 p-10 bg-blue-100 rounded-md flex flex-col sm:flex-row gap-8 sm:gap-14 text-blue-800 justify-start sm:justify-top\" x-data=\"{selected_tab: 0, average_overall: 81}\">\n                    <div class=\"sm:mt-20 flex flex-col gap-4 items-center\">\n\n                        \n                        <div  class=\"p-5 bg-green-600 rounded-md text-[2.5rem] leading-[3rem] font-bold\" x-show=\"selected_tab == 0\">81<\/div>\n\n                        \n                        <div x-cloak class=\"p-5 bg-green-600 rounded-md text-[2.5rem] leading-[3rem] font-bold\" x-show=\"selected_tab == 1\">35<\/div>\n\n                        \n                        <div class=\"text-base font-bold\">Overall score<\/div>\n                    <\/div>\n                    <div class=\"grow\">\n                        <div class=\"flex flex-row flex-wrap justify-center sm:justify-start gap-5\">\n\n                            \n                                        \n                                        <button @click=\"selected_tab = 0\" class=\"py-2.5 px-6 rounded-md border-2 border-solid border-blue-800 text-[0.9375rem] leading-6 font-bold bg-blue-800 text-white\" :class=\"selected_tab == 0 ? 'bg-blue-800 text-white' : '!bg-white !text-blue-800'\">Overall<\/button>\n\n                                        \n                                    \n                                        \n                                        <button @click=\"selected_tab = 1\" class=\"py-2.5 px-6 rounded-md border-2 border-solid border-blue-800 text-[0.9375rem] leading-6 font-bold \" :class=\"selected_tab == 1 ? 'bg-blue-800 text-white' : '!bg-white !text-blue-800'\">Smart features<\/button>\n\n                                        \n                                    \n                        <\/div>\n\n                        \n                            \n                                <div  x-show=\"selected_tab == 0\" class=\"mt-10 flex flex-col gap-5\">\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">How well it cleans <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">What the cleaning experience is like and how clean our teeth felt after brushing. <\/p><b class=\"text-sm\">How well it cleans Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">100<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-yellow-100 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">92<\/div><div class=\"text-sm font-bold leading-6\">Average score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">63<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">100<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 100%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">How it feels <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">What the brush is like in-hand; how grippy it is, what the balance is like, how easy it is to remove brush heads. <\/p><b class=\"text-sm\">How it feels Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">100<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-yellow-100 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">84<\/div><div class=\"text-sm font-bold leading-6\">Average score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">61<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">88<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 88%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">Recommended features <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">Does the brush have our recommended features of a timer, pacer & pressure sensor and how well do they perform?<\/p><b class=\"text-sm\">Recommended features Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">100<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-yellow-100 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">70<\/div><div class=\"text-sm font-bold leading-6\">Average score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">32<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">100<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 100%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">Battery performance <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">How long does the battery last, how long does it take to charge and does the brush have a battery level indicator? <\/p><b class=\"text-sm\">Battery performance Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">100<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-yellow-100 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">63<\/div><div class=\"text-sm font-bold leading-6\">Average score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">10<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">53<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 53%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">Smart features <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">Applies to smart toothbrushes only. How well does the smart technology work and how useful is the app? <\/p><b class=\"text-sm\">Smart features Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">88<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-yellow-100 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">59<\/div><div class=\"text-sm font-bold leading-6\">Average score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">25<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">35<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 35%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">Price <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">What are the total ownership costs over the space of several years and how expensive are replacement brush heads? <\/p><b class=\"text-sm\">Price Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">100<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-yellow-100 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">56<\/div><div class=\"text-sm font-bold leading-6\">Average score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">13<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">43<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 43%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">Additional items &amp; features <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">How easy is it to clean the brush, how noisy is it, does it come with a travel case or any other useful items? <\/p><b class=\"text-sm\">Additional items &amp; features Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">84<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-yellow-100 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">50<\/div><div class=\"text-sm font-bold leading-6\">Average score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">20<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">22<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 22%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">Support &amp; reputation <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">How long is the warranty, what is the manufacturer's reputation and how strong are its environmental efforts? <\/p><b class=\"text-sm\">Support &amp; reputation Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">90<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-yellow-100 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">77<\/div><div class=\"text-sm font-bold leading-6\">Average score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">30<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">90<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 90%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                <\/div>\n\n                            \n                        \n                            \n                                <div x-cloak x-show=\"selected_tab == 1\" class=\"mt-10 flex flex-col gap-5\">\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">Bluetooth connectivity <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">Does the brush have Bluetooth and real-time tracking?<\/p><b class=\"text-sm\">Bluetooth connectivity Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">100<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">50<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">50<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 50%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">Real time tracking <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">How many zones are used for real-time tracking?<\/p><b class=\"text-sm\">Real time tracking Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">100<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">33<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">0<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 0%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">Tracking feedback <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">Does the brush provide feedback on tracking via the app, the brush or both?<\/p><b class=\"text-sm\">Tracking feedback Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">100<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">50<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">0<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 0%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">App features &amp; customisation <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">How much can the features and settings be customised?<\/p><b class=\"text-sm\">App features &amp; customisation Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">100<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">50<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">50<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 50%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                    <div class=\"relative\">\n                                        <div class=\"flex justify-between items-center\">\n                                            <div class=\"text-lg font-bold flex\" x-data=\"{ showModal: false }\" @mouseleave=\"showModal = false\">\n                                                <span class=\"mr-3\">Overall user experience <\/span>\n\n                                                                                                                <div class=\"relative max-h-7 shrink-0\">\n                                                                    <button class=\"score-info-btn\" @mouseover=\"showModal = true\">\n                                                                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                                                    <\/button>\n                                                                    <div class=\"score-info-arrow\" x-show=\"showModal\" x-cloak><\/div>\n                                                                    <div class=\"score-info-box\" x-show=\"showModal\" x-cloak>\n                                                                        <p class=\"!text-sm !font-normal mb-5\">What's the overall experience of the smart features, all things considered? <\/p><b class=\"text-sm\">Overall user experience Score Summary<\/b><div class=\"flex gap-4 mt-4\"><div class=\"bg-green-600 text-blue-800 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">90<\/div><div class=\"text-sm font-bold leading-6\">Best score<\/div><\/div><div class=\"flex gap-4 mt-4\"><div class=\"bg-red-200 rounded text-[15px] w-9 h-6 text-center flex flex-col justify-center\">30<\/div><div class=\"text-sm font-bold leading-6\">Worst score<\/div><\/div>                                                                    <\/div>\n                                                                <\/div>\n                                                                                                            <\/div>\n                                            <div class=\"text-base font-semibold\">50<\/div>\n                                        <\/div>\n                                        <div class=\"mt-2 w-full h-1.5 bg-blue-100 rounded-full\"><\/div>\n                                        <div style=\"width: 50%\" class=\"-translate-y-full rounded-full content bg-blue-800 block h-1.5\"><\/div>\n                                    <\/div>\n\n                                    \n                                <\/div>\n\n                            \n                        \n                    <\/div>\n\n                <\/div>\n            <\/section>\n\n    \n\n            <div  class=\"\">\n                <div class=\"warning-block py-8 px-5 lg:p-11 my-10 lg:my-12\">\n\n                    <div class=\"mb-5 lg:mb-6 h-10 w-10\">\n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/alert-icon.svg\" alt=\"alert-icon\">\n                    <\/div>\n\n                    <div class=\"editor-content\">\n                        <p><strong>Oral-B iO Series 4 (iO4) is going End Of Life (EOL)<\/strong><\/p>\n<p>May 2026: It would appear that the the iO4 is gradually being discontinued. It is no longer listed on the Oral-B UK website and fewer retailers are now stocking this model.<\/p>\n<p>Our recommendation is the <a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-io3-review\/\">iO Series 3<\/a> instead. It is essentially the same model, just without the Bluetooth connectivity that is available on the iO4.<\/p>\n                    <\/div>\n\n                <\/div>\n            <\/div>\n\n    \n\n            <div id=\"where-to-buy\" class=\"lg:my-6 my-3\">\n\n                \n                <div class=\"recommendation-card border border-blue-200 p-3 lg:p-4 pb-5 flex flex-col lg:flex-row lg:items-center\">\n                    <div class=\"relative h-[11.25rem] lg:h-auto lg:w-[11.125rem] w-full justify-center flex items-center mb-4 lg:mb-0 lg:mr-8 lg:flex-shrink-0\">\n                        <img decoding=\"async\" alt=\"Oral-B iO Series 3 (iO3)\" class=\"h-full max-h-32 w-auto object-center object-cover\" loading=\"lazy\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41W8AODyAPL._SL500_.jpg\">\n                    <\/div>\n                    <div>\n                        <div class=\"flex flex-col lg:flex-row gap-y-2 items-center justify-center lg:justify-start mb-4 flex-wrap gap-x-4\">\n                            <div class=\"font-bold text-center text-base lg:text-lg-base lg:text-left\">\n                                Oral-B iO Series 3 (iO3)                            <\/div>\n                        <\/div>\n                                                        <div class=\"mb-3 lg:mb-4 my-3 gap-1 flex lg:justify-start justify-center items-center lg:my-0 lg:mr-[2.188rem]\">\n                                                                            <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                        <div class=\"ml-1 mr-1\">(4.8)<\/div>\n                                <div class=\"ask tooltip\" title=\"Visually, we have rounded star ratings to the nearest half score, e.g a 4.2 rating is shown as 4 stars.\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                <\/div>\n                            <\/div>\n                        \n                        <!-- price buttons -->\n                        <div class=\"flex flex-col lg:flex-row lg:items-center\">\n\n                            <div class=\"flex gap-2 lg:gap-3 flex-col lg:flex-row lg:flex-wrap\">\n                                                                            <a class=\"btn-green !text-blue-800 lg:min-w-[172px] text-center font-bold text-sm py-3 px-7 rounded-md lg:px-5 lg:py-3 lg:text-btn-base !no-underline\" href=\"https:\/\/go.skimresources.com?id=110829X1577719&amp;xs=1&amp;url=https%3A%2F%2Fshop.oralb.co.uk%2Foral-b-io3-matte-black-electric-toothbrush%2F14712475.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow sponsored\">  Oral-B - check price <\/a>\n                                                                                        <a class=\"btn-green !text-blue-800 lg:min-w-[172px] text-center font-bold text-sm py-3 px-7 rounded-md lg:px-5 lg:py-3 lg:text-btn-base !no-underline\" href=\"https:\/\/www.amazon.co.uk\/dp\/B0D9YCVSGN?tag=electeet-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" target=\"_blank\" rel=\"noreferrer noopener nofollow sponsored\"> \u00a359.99 Amazon <\/a>\n                                            \n                            <\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n    \n\n\n<div id=\"verdict\" class=\"wp-block-group our-verdict-block\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Our verdict<\/h2>\n\n\n\n        <div  class=\" flex items-center justify-start gap-1 mb-5 lg:mb-6\">\n\n                                <div class=\"star\"> \n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\"> \n                    <\/div>\n                                        <div class=\"star\"> \n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\"> \n                    <\/div>\n                                        <div class=\"star\"> \n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\"> \n                    <\/div>\n                                        <div class=\"star\"> \n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\"> \n                    <\/div>\n                                        <div class=\"star\"> \n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\"> \n                    <\/div>\n                                <div class=\"ml-1 mr-1\">(4.8)<\/div>\n            <div class=\"ask tooltip\" title=\"Visually, we have rounded star ratings to the nearest half score, e.g a 4.2 rating is shown as 4 stars.\">\n                <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n            <\/div>\n\n        <\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The iO Series 4 has a modern design and a quiet motor. It\u2019s a more affordable iO model, but the smart features are not required and don\u2019t do as much as you might expect.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the long term it costs more than other Oral-B brushes because of the expensive iO-specific brush heads.<\/p>\n<\/div><\/div>\n\n\n            <div id=\"where-to-buy\" class=\"lg:my-6 my-3\">\n\n                \n                <div class=\"recommendation-card border border-blue-200 p-3 lg:p-4 pb-5 flex flex-col lg:flex-row lg:items-center\">\n                    <div class=\"relative h-[11.25rem] lg:h-auto lg:w-[11.125rem] w-full justify-center flex items-center mb-4 lg:mb-0 lg:mr-8 lg:flex-shrink-0\">\n                        <img decoding=\"async\" alt=\"Oral-B iO Series 4 (iO4)\" class=\"h-full max-h-32 w-auto object-center object-cover\" loading=\"lazy\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41THmFfKfhL._SL500_.jpg\">\n                    <\/div>\n                    <div>\n                        <div class=\"flex flex-col lg:flex-row gap-y-2 items-center justify-center lg:justify-start mb-4 flex-wrap gap-x-4\">\n                            <div class=\"font-bold text-center text-base lg:text-lg-base lg:text-left\">\n                                Oral-B iO Series 4 (iO4)                            <\/div>\n                        <\/div>\n                                                        <div class=\"mb-3 lg:mb-4 my-3 gap-1 flex lg:justify-start justify-center items-center lg:my-0 lg:mr-[2.188rem]\">\n                                                                            <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                        <div class=\"ml-1 mr-1\">(4.8)<\/div>\n                                <div class=\"ask tooltip\" title=\"Visually, we have rounded star ratings to the nearest half score, e.g a 4.2 rating is shown as 4 stars.\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                <\/div>\n                            <\/div>\n                        \n                        <!-- price buttons -->\n                        <div class=\"flex flex-col lg:flex-row lg:items-center\">\n\n                            <div class=\"flex gap-2 lg:gap-3 flex-col lg:flex-row lg:flex-wrap\">\n                                                                            <a class=\"btn-green !text-blue-800 lg:min-w-[172px] text-center font-bold text-sm py-3 px-7 rounded-md lg:px-5 lg:py-3 lg:text-btn-base !no-underline\" href=\"https:\/\/go.skimresources.com?id=110829X1577719&amp;xs=1&amp;url=https%3A%2F%2Fshop.oralb.co.uk%2Foral-b-io4-white-electric-toothbrush%2F13997352.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow sponsored\">  Oral-B - check price <\/a>\n                                                                                        <a class=\"btn-green !text-blue-800 lg:min-w-[172px] text-center font-bold text-sm py-3 px-7 rounded-md lg:px-5 lg:py-3 lg:text-btn-base !no-underline\" href=\"https:\/\/www.amazon.co.uk\/dp\/B0B18SS8YL?tag=electeet-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" target=\"_blank\" rel=\"noreferrer noopener nofollow sponsored\"> \u00a393.59 Amazon <\/a>\n                                            \n                            <\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n    \n\n\n    \n    <table id=\"pros-cons\" class=\" pros-cons-table my-8 lg:mt-10 w-full table-fixed\">\n\n        <thead>\n\n            <tr>\n\n                \n                <th class=\"!border-r-white\" scope=\"col\">\n\n                                        \n                                            <h3 class=\"h3 !m-0\">\n                    \n                            Pros\n                                            <\/h3>\n                                        \n\n                <\/th>\n\n                \n                \n                <th scope=\"col\">\n\n                                            <h3 class=\"h3 !m-0\">\n                    \n                        Cons                    \n                                            <\/h3>\n                    \n                <\/th>\n\n                            <\/tr>\n\n        <\/thead>\n\n        <tbody>\n\n            \n            <tr>\n\n                <td>\n\n                    \n                    <div class=\"flex items-baseline gap-2 lg:gap-3 lg:items-center\">\n\n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/single-article\/check-mark.svg\" alt=\"check-icon\">\n\n                        <span><p>Premium looking handle that is easy to keep clean<\/p>\n<\/span>\n\n                    <\/div>\n\n                    \n                <\/td>\n\n                <td>\n\n                    \n                    <div class=\"flex items-baseline gap-2 lg:gap-3 lg:items-center\">\n\n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/single-article\/close-icon.svg\" alt=\"cross-icon\">\n\n                        <span><p>No cleaning mode labels\/icons<\/p>\n<\/span>\n\n                    <\/div>\n\n                    \n                <\/td>\n\n            <\/tr>\n\n            \n            <tr>\n\n                <td>\n\n                    \n                    <div class=\"flex items-baseline gap-2 lg:gap-3 lg:items-center\">\n\n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/single-article\/check-mark.svg\" alt=\"check-icon\">\n\n                        <span><p>Quieter than other Oral-B brushes<\/p>\n<\/span>\n\n                    <\/div>\n\n                    \n                <\/td>\n\n                <td>\n\n                    \n                    <div class=\"flex items-baseline gap-2 lg:gap-3 lg:items-center\">\n\n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/single-article\/close-icon.svg\" alt=\"cross-icon\">\n\n                        <span><p>Requires iO specific heads which are more expensive<\/p>\n<\/span>\n\n                    <\/div>\n\n                    \n                <\/td>\n\n            <\/tr>\n\n            \n            <tr>\n\n                <td>\n\n                    \n                    <div class=\"flex items-baseline gap-2 lg:gap-3 lg:items-center\">\n\n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/single-article\/check-mark.svg\" alt=\"check-icon\">\n\n                        <span><p>Reminds you when to replace the brush head<\/p>\n<\/span>\n\n                    <\/div>\n\n                    \n                <\/td>\n\n                <td>\n\n                    \n                    <div class=\"flex items-baseline gap-2 lg:gap-3 lg:items-center\">\n\n                        <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/single-article\/close-icon.svg\" alt=\"cross-icon\">\n\n                        <span><p>Bluetooth connectivity isn\u2019t essential and adds to the cost<\/p>\n<\/span>\n\n                    <\/div>\n\n                    \n                <\/td>\n\n            <\/tr>\n\n            \n        <\/tbody>\n\n    <\/table>\n\n    \n\n\n<div id=\"full-review\" class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Its smart features are a bit underwhelming<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">As is the case with most iO brush handles, the iO4 has Bluetooth connectivity and can connect to the Oral-B app available for Android and iOS mobile phones.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Yet unlike the iO5, 6, 7, 8, 9 and 10 this does not have real-time tracking. Meaning, you don\u2019t get feedback on what areas of the mouth you have and have not brushed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When using the app you get an on-screen timer, alerts about the amount of brushing pressure and notification of the active brushing mode.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Data such as brushing time are logged in the app and available for review in the future. You do too have some customisation options for the handle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Whilst you can get insights into some of your oral care habits, it isn\u2019t going to really highlight and educate you as much as you might have expected or hoped.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you know you don\u2019t brush regularly enough or for long enough, that\u2019s exactly what the app will say.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/wp-content\/uploads\/2022\/08\/Oral_B_iO_Smartphone_App_Timer_No_Zones.jpg\" alt=\"\"><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Useful dentist-recommended features are built-in<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Used correctly, a manual toothbrush is perfectly satisfactory, but electric brushes have a number of benefits that no manual brush is able to match.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Most dental professionals, our in-house team included, only have a couple that they feel are really beneficial: a pressure sensor, timer and pacer. The iO4 has them.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/wp-content\/uploads\/2022\/08\/Oral_B_iO4_Electric_Toothbrush-1-768x768.jpg\" alt=\"\"><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">The best pressure sensor on toothbrushes today<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For many years a large number of Oral-B brushes have alerted users if they were brushing too hard. They do this because too much force can lead to additional and unnecessary wear on the teeth and gums.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But, equally, good toothbrushing habits does require a small amount of pressure to be applied. It\u2019s a balance that can take some getting used to. With the iO4, striking this balance is made much easier as the brush tells you when you are doing it right and wrong.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">And you will be pleased to know it doesn\u2019t nag you in a way that you will find irritating.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The light ring around the brush head changes colour based on the applied pressure.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>White&nbsp; \u2013 low pressure \u2013 not enough force is being applied.&nbsp;<\/li>\n\n\n\n<li>Green \u2013 the right amount of pressure is being used.<\/li>\n\n\n\n<li>Red \u2013 high - excessive pressure is being applied and the force should be reduced.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Don\u2019t fret if it takes some getting used to and you see the red light more often than you like. The motor will slow the bristle movements to further protect the teeth until such time the pressure is relieved.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If using the app, it will show on the screen if you are using the correct pressure or not.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/wp-content\/uploads\/2022\/08\/Oral_B_iO_Brush_In_The_Mouth.jpg\" alt=\"\"><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Brush for longer with the help of the timer and pacer<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Statistics would suggest that the vast majority of people fail to brush their teeth for anywhere near enough time to maximise plaque removal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2 minutes is the recommended minimum time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Activated when you begin brushing the timer and pacer encourage you to brush the teeth evenly, not paying attention to just the teeth at the front of the mouth.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At 30 second intervals, the brush motor momentarily pauses. The sound and brushing sensation change. This is your notification to move to the next section of your mouth. Come 2 minutes, the alert is 3 momentary pauses. Hear this and you\u2019ve brushed for the recommended minimum time. By achieving this twice a day you are going to help minimise your dental health issues in the future.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/wp-content\/uploads\/2022\/08\/Oral_B_iO4_Electric_Toothbrush-4.jpg\" alt=\"\"><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">The iO4 gives a softer and quieter brushing experience<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">With few exceptions, most electric toothbrushes will do a brilliant job of cleaning the teeth, if used correctly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Oral-B has decades of experience that have gone into making the iO4\u2019s brushing results as good as they are.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">And just because this isn\u2019t the top of the range model, the motor's functionality isn\u2019t limited in any way. Thus you get as good a clean using the 4 Series as you do the 8, 9 or <a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-io10-review\/\">10<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Less aggressive on the teeth than non-iO models<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">I often describe Oral-B brushes as providing an intense and almost aggressive clean. It\u2019s the best way I can describe the sensation of the round brush head passing over the teeth and gums. It can be quite satisfying, your teeth instantly feel cleaner, but I know it\u2019s not a sensation everyone likes. Particularly if you are used to the softer experience given by sonic toothbrushes from the likes of Philips Sonicare or Colgate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redesigned for the iO Series, the magnetic brush motor produces a cleaning action which is noticeably softer and less intense, but still very satisfying.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I do prefer the sensation you get with the iO4 compared to the likes of the Genius X, for example. But, it isn\u2019t worth switching to this brush for the different brushing sensation alone, it\u2019s just a positive perk.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/wp-content\/uploads\/2022\/08\/Oral_B_iO4_Electric_Toothbrush-30.jpg\" alt=\"\"><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">The brush head is bigger than what you might be used to<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Specific heads are required for the iO4. Compared to brush heads you might be familiar with from Oral-B, they are marginally deeper. You're looking at about a 10 percent difference.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For most, this won\u2019t pose any issues, but for those with the most crowded of mouths, you might find it a little more difficult to position the round brush head.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The overall size is still significantly smaller than most sonic toothbrush heads.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">It\u2019s not as quiet as many other brushes, but far less noisy than non-iO models<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Oral-B brushes are far more noisy than most electric toothbrushes, but the iO Series handles are quieter.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On average, they operate at 10 decibels (dB) less. The iO4 registers a maximum of 64dB. But, on the sensitive mode, it was a couple of dB quieter still.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The sound is less mechanical than non-iO models. It is now a deeper humming or vibration noise. It isn\u2019t as high pitched as most sonic toothbrushes that operate in the 60-70dB range.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/wp-content\/uploads\/2022\/08\/Oral_B_iO4_Electric_Toothbrush-11.jpg\" alt=\"\"><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">iO design and features cost more<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The iO Series 4 has a retail price of \u00a3240. Do not pay this price. It\u2019s common practice for Oral-B brushes to be sold at 50% below retail, thus the average cost is \u00a3120.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It\u2019s still a bit pricey given other toothbrushes you could pick.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A few variants of the iO4 exist including a travel variant that comes with a case and a brush head holder. It seems that this is sold at the same price. So, it is my advice to opt for this. In fact, I\u2019d pay up to \u00a310 more for it.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/wp-content\/uploads\/2022\/08\/Oral_B_iO4_Electric_Toothbrush-19.jpg\" alt=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">There is also a duo package that contains 2 brush handles and heads. This has a list price of \u00a3380.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A single Ultimate Clean head is included with the iO4. Alongside the Gentle Care head, it is one of our preferred options from the 4 different styles of <a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-brush-heads-comparison\/\">iO brush heads available.<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">iO specific these heads command an average price of around \u00a38 each. This is twice the price of a non-iO brush head you would buy and fit to the Pro 1, Pro 3 and Genius X.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Over 3 years, the iO4 will cost in the region of \u00a3208.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you are prepared to forgo the Bluetooth connectivity, you can have the iO3 and save \u00a350. Also have a look at the other recommendations in our best electric toothbrush post. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Forgo the iO design and the <a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-pro-3-3000-review\/\" data-type=\"post\" data-id=\"5957\">Pro 3 3500<\/a> will cost \u00a365 over 3 years and still clean the teeth just as well.<\/p>\n\n\n            <div  class=\"lg:my-6 my-3\">\n\n                \n                <div class=\"recommendation-card border border-blue-200 p-3 lg:p-4 pb-5 flex flex-col lg:flex-row lg:items-center\">\n                    <div class=\"relative h-[11.25rem] lg:h-auto lg:w-[11.125rem] w-full justify-center flex items-center mb-4 lg:mb-0 lg:mr-8 lg:flex-shrink-0\">\n                        <img decoding=\"async\" alt=\"Oral-B Pro 3 3500\" class=\"h-full max-h-32 w-auto object-center object-cover\" loading=\"lazy\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41Jtjcngx2L._SL500_.jpg\">\n                    <\/div>\n                    <div>\n                        <div class=\"flex flex-col lg:flex-row gap-y-2 items-center justify-center lg:justify-start mb-4 flex-wrap gap-x-4\">\n                            <div class=\"font-bold text-center text-base lg:text-lg-base lg:text-left\">\n                                Oral-B Pro 3 3500                            <\/div>\n                        <\/div>\n                                                        <div class=\"mb-3 lg:mb-4 my-3 gap-1 flex lg:justify-start justify-center items-center lg:my-0 lg:mr-[2.188rem]\">\n                                                                            <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                      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alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-half.svg\" alt=\"rating-star-half\" class=\"w-5\">\n                                        <\/div>\n                                                                        <div class=\"ml-1 mr-1\">(4.7)<\/div>\n                                <div class=\"ask tooltip\" title=\"Visually, we have rounded star ratings to the nearest half score, e.g a 4.2 rating is shown as 4 stars.\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                <\/div>\n                            <\/div>\n                        \n                        <!-- price buttons -->\n                        <div class=\"flex flex-col lg:flex-row lg:items-center\">\n\n                            <div class=\"flex gap-2 lg:gap-3 flex-col lg:flex-row lg:flex-wrap\">\n                                                                            <a class=\"btn-green !text-blue-800 lg:min-w-[172px] text-center font-bold text-sm py-3 px-7 rounded-md lg:px-5 lg:py-3 lg:text-btn-base !no-underline\" href=\"https:\/\/www.ebay.co.uk\/sch\/i.html?_nkw=oral-b+pro+3+3500&amp;mkcid=1&amp;mkrid=710-53481-19255-0&amp;siteid=3&amp;campid=5337719300&amp;toolid=11800&amp;mkevt=1\" target=\"_blank\" rel=\"noreferrer noopener nofollow sponsored\"> \u00a335 Ebay <\/a>\n                                                                                        <a class=\"btn-green !text-blue-800 lg:min-w-[172px] text-center font-bold text-sm py-3 px-7 rounded-md lg:px-5 lg:py-3 lg:text-btn-base !no-underline\" href=\"https:\/\/www.amazon.co.uk\/dp\/B0B4WQXL21?tag=electeet-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" target=\"_blank\" rel=\"noreferrer noopener nofollow sponsored\"> \u00a376.58 Amazon <\/a>\n                                            \n                            <\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n    <\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Battery life is a bit below average and inconsistent<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Expect about 18 days of use on a full charge of the iO4, assuming twice daily brushing, 2 minutes per time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I actually achieved up to 20 days in my hands-on testing, which is good, but you could hear and feel the motor slowing a bit once past 18 days.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But, like the iO9 and 10, the battery performance is a little inconsistent. At times, I\u2019ve gotten only 14 days from the battery. I can\u2019t explain why.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/wp-content\/uploads\/2022\/08\/Oral_B_iO4_Electric_Toothbrush-21.jpg\" alt=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">I\u2019ve not experienced this with the<a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-io3-review\/\"> iO Series 3<\/a>, which as far as I am aware has the same rechargeable Lithium-Ion battery sealed inside the handle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Many brands of toothbrushes now last 3-4 weeks on a single charge, so the Series 4 really falls a bit short. Particularly when you consider the size of the handle compared to the likes of SURI, which is much slimmer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A recess in the base of the brush handle allows the protuberance on the top of the provided charging stand to fit inside. The charger is white in color with a 1.2 metre (4 foot) cable hardwired into it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The plug on the end of the cable is a 2 pin power adapter (suitable for UK bathrooms). It will recharge the battery in up to 16 hours.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An LED on the brush handle gives feedback on the charge status.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">A premium, minimal design that looks good and is easy to clean<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A selling point of the iO range is the cleaner and more minimal handle design. It has what many, myself included, believe to be a premium vibe.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rounded, the smooth brush handle is nicely weighted and feels balanced in the hand in use.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Able to stand upright on a countertop, it doesn\u2019t tend to roll all that much when laid on a flat surface either.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The lack of gloss plastics helps give the premium look and you can purchase the iO4 in black, white and lavender colour options.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Black coloured handles do normally come with a black brush head, but the charging stand will be white.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/wp-content\/uploads\/2022\/08\/Oral_B_iO4_Electric_Toothbrush-37.jpg\" alt=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Despite the lack of rubber grips, the brush doesn't feel slippery in hand. And for those with dexterity issues, the larger profile might actually make it easier to grip and handle.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The 2 function buttons are not too stiff and do provide reassuring feedback to the fingertip.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is generally pretty easy to keep the handle clean and free from grime. But, do make sure you pay close attention to the brush head. Give it a good rinse after each use.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The design means that grime can get stuck inside the head and this can lead to mould without thorough rinsing.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It isn\u2019t a problem exclusive to the iO Series, but compared to previous generations, there is a gap between the magnetic attachment and the plastic frame that offers an ideal trap and breeding ground for bacteria.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">You\u2019ll be alerted when the brush heads need to be replaced<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A yellow light will be lit inside the mode button on the iO4\u2019s handle when it is time to replace the bristles. You will get an in app notification too, if you use it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You can expect this to happen every 3 months as this is the recommended usage time for a brush head.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Using it for a couple of weeks longer isn\u2019t a major issue, but after 90 days the bristles are worn. This means less effective cleaning and the potential of being more abrasive on the teeth and gums.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When you get the alert it is easy to reset this.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/wp-content\/uploads\/2022\/08\/Oral_B_iO_Smartphone_App_Brush_Head_Statistics.jpg\" alt=\"\"><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">4 different cleaning modes, but no icons or labels on the handle<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The iO4 offers 4 different <a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-cleaning-modes-explained\/\">cleaning modes.<\/a>&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Your options are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Daily Clean<\/li>\n\n\n\n<li>Sensitive<\/li>\n\n\n\n<li>Super Sensitive<\/li>\n\n\n\n<li>Whitening<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Realistically you don\u2019t need so many. Daily Clean is more than enough for most, but sensitive mode is welcomed by those suffering with tender gums. It is too a less intense option for new electric toothbrush users to start out with.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cleaning performance is comparable between each with limited evidence to really suggest one is better than another. You\u2019re certainly not going to get significantly whiter teeth just by using whitening mode.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Unless you are using the app, or have memorised the order of the modes (as above) there is no indication from the brush handle itself as to which mode you have selected.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Many brushes have labels or icons on the handle that are lit to inform you. You don\u2019t get this on the iO4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The app does allow you to configure the order of the modes and even disable them if you desire. So you can make sensitive the default mode rather than daily clean.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/wp-content\/uploads\/2022\/08\/Oral_B_iO4_Electric_Toothbrush-2.jpg\" alt=\"\"><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">It\u2019s not repairable, but the optional 3 year warranty is better than average<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Despite a real need to move to more sustainable approaches, it is common practice for electric brushes not to be user serviceable. The iO4 is no exception.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is nice to have the option of an additional year's warranty. You can extend the default 2 year guarantee, simply by registering online. The additional 365 days of protection comes at no extra cost.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Oral-B is an established player within the oral care sector and their electric toothbrushes are on the whole reliable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is not possible to say that the iO4 would never fail, but the odds are very low.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There are fewer failure points than more premium models and the fact the electrical components are sealed inside helps limit the chances of failure.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Environmental impact<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/www.nature.com\/articles\/s41415-020-1981-0\" target=\"_blank\" rel=\"noopener\">environmental impact of electric toothbrushes<\/a> is on average 11 times greater than a manual brush. This doesn\u2019t mean that you shouldn\u2019t use one. You need to balance effective cleaning and disease prevention against the environmental impact.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The iO4 comes in a box that is perhaps a little bigger than it needs to be. But, it's not terribly oversized. It\u2019s easily recycled and in many instances, you are not getting lots of unnecessary extras included.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There is potentially more e-waste generated as a result of the Bluetooth connectivity, but it\u2019s not as bad as the handles in the range that have displays built in.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">While Oral-B has partnered with schemes such as TerraCycle in some countries, it does not yet have its own recycling scheme for used brush heads or faulty products.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Its brush heads are made from petroleum-based plastic, which uses up the planet\u2019s finite resources compared to using plant-based plastics.<\/p>\n<\/div><\/div>\n\n\n\n<div id=\"conclusion\" class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Conclusion: clever but somewhat limited tech<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The iO Series 4 is a good toothbrush, I can\u2019t say it is bad. It does what it needs to do well.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">After each use the teeth feel clean and thanks to the timer, pacer and pressure sensor you are kept on track.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But, the Series 4 is an expensive toothbrush with more features than you need. There are <a href=\"#also-consider\">better value brushes within the Oral-B range<\/a>.<\/p>\n\n\n            <div  class=\"lg:my-6 my-3\">\n\n                \n                <div class=\"recommendation-card border border-blue-200 p-3 lg:p-4 pb-5 flex flex-col lg:flex-row lg:items-center\">\n                    <div class=\"relative h-[11.25rem] lg:h-auto lg:w-[11.125rem] w-full justify-center flex items-center mb-4 lg:mb-0 lg:mr-8 lg:flex-shrink-0\">\n                        <img decoding=\"async\" alt=\"Oral-B iO Series 4 (iO4)\" class=\"h-full max-h-32 w-auto object-center object-cover\" loading=\"lazy\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41THmFfKfhL._SL500_.jpg\">\n                    <\/div>\n                    <div>\n                        <div class=\"flex flex-col lg:flex-row gap-y-2 items-center justify-center lg:justify-start mb-4 flex-wrap gap-x-4\">\n                            <div class=\"font-bold text-center text-base lg:text-lg-base lg:text-left\">\n                                Oral-B iO Series 4 (iO4)                            <\/div>\n                        <\/div>\n                                                        <div class=\"mb-3 lg:mb-4 my-3 gap-1 flex lg:justify-start justify-center items-center lg:my-0 lg:mr-[2.188rem]\">\n                                                                            <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                                <div class=\"star\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/star-fill.svg\" alt=\"rating-star-filled\" class=\"w-5\">\n                                        <\/div>\n                                                                        <div class=\"ml-1 mr-1\">(4.8)<\/div>\n                                <div class=\"ask tooltip\" title=\"Visually, we have rounded star ratings to the nearest half score, e.g a 4.2 rating is shown as 4 stars.\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/ask.svg\" class=\"w-full h-full\" alt=\"ask-icon\">\n                                <\/div>\n                            <\/div>\n                        \n                        <!-- price buttons -->\n                        <div class=\"flex flex-col lg:flex-row lg:items-center\">\n\n                            <div class=\"flex gap-2 lg:gap-3 flex-col lg:flex-row lg:flex-wrap\">\n                                                                            <a class=\"btn-green !text-blue-800 lg:min-w-[172px] text-center font-bold text-sm py-3 px-7 rounded-md lg:px-5 lg:py-3 lg:text-btn-base !no-underline\" href=\"https:\/\/go.skimresources.com?id=110829X1577719&amp;xs=1&amp;url=https%3A%2F%2Fshop.oralb.co.uk%2Foral-b-io4-white-electric-toothbrush%2F13997352.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow sponsored\">  Oral-B - check price <\/a>\n                                                                                        <a class=\"btn-green !text-blue-800 lg:min-w-[172px] text-center font-bold text-sm py-3 px-7 rounded-md lg:px-5 lg:py-3 lg:text-btn-base !no-underline\" href=\"https:\/\/www.amazon.co.uk\/dp\/B0B18SS8YL?tag=electeet-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" target=\"_blank\" rel=\"noreferrer noopener nofollow sponsored\"> \u00a393.59 Amazon <\/a>\n                                            \n                            <\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n    <\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"video\">Video review<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">You can see my hands-on testing and experience with the Oral-B iO4 in the video below.<\/p>\n\n\n\n        <section x-data=\"{ showPreviewImage: 1 }\" x-on:click=\"showPreviewImage = false\"  class=\" my-5 relative vi-lazyload cursor-pointer aspect-[16\/9] w-full group video-section-wrapper\">\n\n            \n                <iframe\n                    id=\"youtube-iframe-block_fad7d11bcb36c1f2e8146d1ebe8f0b60\"\n                    data-block-id=\"block_fad7d11bcb36c1f2e8146d1ebe8f0b60\"\n                    data-video-id=\"caPfpVMmJHE\"\n                    data-preview-image-url=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/uploads\/sites\/3\/2022\/11\/maxresdefault-4.jpg\"\n                    data-start-time=\"\"\n                    src=\"https:\/\/www.youtube.com\/embed\/caPfpVMmJHE\"\n                    x-on:click=\"showPreviewImage = false\"\n                    title=\"YouTube video player\"\n                    frameborder=\"0\"\n                    allow=\"accelerometer; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share;\"\n                    allowfullscreen>\n                <\/iframe>\n\n            \n            \n                <div x-show=\"showPreviewImage\" x-on:click=\"showPreviewImage = false\" class=\"absolute left-0 top-0 w-full h-full bg-black z-30\">\n                    <img decoding=\"async\" class=\"vi-lazyload-img\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/uploads\/sites\/3\/2022\/11\/maxresdefault-4.jpg\" alt=\"Video thumbnail: Oral-B iO Series 4\">\n                <\/div>\n\n                <button x-show=\"showPreviewImage\" x-on:click=\"showPreviewImage = false\" class=\"appearance-none vi-lazyload-playbtn bg-green-600 bg-opacity-60 group-hover:bg-opacity-100 rounded-full flex items-center justify-center w-12 h-12 absolute transition transform -translate-y-1\/2 -translate-x-1\/2 top-1\/2 left-1\/2 cursor-pointer focus:outline-none lg:w-[8.625rem] lg:h-[8.625rem] z-40\">\n                    <img decoding=\"async\" class=\"h-5 w-5 ml-1 lg:w-12 lg:h-14\" loading=\"lazy\" src=\"https:\/\/www.electricteeth.com\/uk\/wp-content\/themes\/genesis-electricteeth\/assets\/images\/icon\/play-button-arrowhead-white.svg\" alt=\"play-button\">\n                <\/button>\n\n            \n        <\/section>\n\n\n\n    \n        <div id=\"size\" class=\"\">\n\n            <h2 class=\"!mb-4\">Size guide<\/h2>\n\n            <ul class=\"card !mt-0 !p-8\">\n\n                \n                    \n                        <li>Toothbrush height with head - 24cm \/ 9.5 inches<\/li>\n\n                    \n                \n                    \n                        <li>Toothbrush height without head - 18.3cm \/ 7.2 inches<\/li>\n\n                    \n                \n                    \n                \n                    \n                \n                    \n                        <li>Width - 2.8cm \/ 1.1 inches<\/li>\n\n                    \n                \n                    \n                        <li>Depth\/thickness - 2.8cm \/ 1.1 inches<\/li>\n\n                    \n                \n                    \n                        <li>Weight with head - 136g \/ 4.8oz<\/li>\n\n                    \n                \n                    \n                \n                    \n                        <li>Weight without head - 127g \/ 4.5oz<\/li>\n\n                    \n                \n                    \n                \n                    \n                \n                    \n                        <li>Package weight - 630g \/ 22.2oz<\/li>\n\n                    \n                \n            <\/ul>\n\n\n        <\/div>\n\n    \n    \n\n\n    <div id=\"noise\" class=\"\">\n\n        <h2 class=\"!mb-4\">Noise<\/h2>\n\n        <ul class=\"card !mt-0 !p-8\">\n\n            \n                <li>64dB<\/li>\n\n            \n        <\/ul>\n\n\n    <\/div>\n\n    \n\n\n    <div id=\"manufacture\" class=\"\">\n\n        <h2 class=\"!mb-4\">Country of manufacture<\/h2>\n\n        <ul class=\"card !mt-0 !p-8\">\n\n            \n                <li>Germany<\/li>\n\n            \n        <\/ul>\n\n    <\/div>\n\n    \n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">More Oral-B iO content<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In case you hadn't noticed, the Oral-B iO range now includes several models.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We explain the differences in our <a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-io-series-7-vs-8-vs-9\/\" data-type=\"post\" data-id=\"4025321\">Oral-B iO comparison<\/a>.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We've also reviewed each brush individually:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-io10-review\/\" data-type=\"post\" data-id=\"4035603\">Oral-B iO10 Review<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-io-review\/\" data-type=\"post\" data-id=\"4025600\">Oral-B iO9 Review<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-io8-review\/\" data-type=\"post\" data-id=\"4035089\">Oral-B iO8 Review<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-io7-review\/\" data-type=\"post\" data-id=\"4035079\">Oral-B iO7 Review<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-io6-review\/\" data-type=\"post\" data-id=\"4035038\">Oral-B iO6 Review<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-io5-review\/\" data-type=\"post\" data-id=\"4035061\">Oral-B iO5 Review<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electricteeth.com\/uk\/oral-b-io3-review\/\" data-type=\"post\" data-id=\"4037188\">Oral-B iO3 Review<\/a><\/li>\n<\/ul>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Our verdict The iO Series 4 has a modern design and a quiet motor. It\u2019s a more affordable iO model,&#8230;<\/p>\n","protected":false},"author":4,"featured_media":4039238,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","editor_notices":[],"footnotes":""},"categories":[1,1000208],"tags":[1000747,92],"post_topic":[1000665],"class_list":["post-4035054","post","type-post","status-publish","format-standard","has-post-thumbnail","category-electric-toothbrush-reviews","category-oral-b-electric-toothbrush-reviews","tag-metrics","tag-rt","post_topic-electric-toothbrush","entry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/posts\/4035054","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/comments?post=4035054"}],"version-history":[{"count":4,"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/posts\/4035054\/revisions"}],"predecessor-version":[{"id":4045000,"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/posts\/4035054\/revisions\/4045000"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/media\/4039238"}],"wp:attachment":[{"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/media?parent=4035054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/categories?post=4035054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/tags?post=4035054"},{"taxonomy":"post_topic","embeddable":true,"href":"https:\/\/www.electricteeth.com\/uk\/wp-json\/wp\/v2\/post_topic?post=4035054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}