{"id":4023275,"date":"2025-12-04T10:54:17","date_gmt":"2025-12-04T10:54:17","guid":{"rendered":"https:\/\/www.electricteeth.com\/uk\/?p=4023275"},"modified":"2025-12-04T10:54:20","modified_gmt":"2025-12-04T10:54:20","slug":"oral-b-io-vs-sonicare-diamondclean-smart","status":"publish","type":"post","link":"https:\/\/www.electricteeth.com\/uk\/oral-b-io-vs-sonicare-diamondclean-smart\/","title":{"rendered":"Oral-B iO vs Sonicare DiamondClean"},"content":{"rendered":"
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Which one would we choose?<\/h2>\n\n\n

Best overall: <\/strong> Oral-B iO Series 6 (iO6) \/ Oral-B<\/a>, Amazon<\/a> \/ ~\u00a3104.99<\/p>

Top of the range: <\/strong> Philips Sonicare DiamondClean 9900 Prestige \/ Philips<\/a>, Amazon<\/a> \/ ~\u00a3224.99<\/p>

Best value: <\/strong> Oral-B iO Series 3 (iO3) \/ Oral-B<\/a>, Amazon<\/a> \/ ~\u00a357.97<\/p><\/div>\n\n\n

Our verdict<\/h2>\n\n\n\n

The Oral-B iO Series 6 is my pick. To me, it feels like the perfect balance between features and price with no significant compromises.<\/p>\n\n\n\n

After each use my teeth feel wonderfully clean and because the round brush head is smaller it is easier to move into the tightest spaces in the mouth.<\/p>\n\n\n\n

You\u2019re getting many premium features that make daily use more enjoyable. And the real-time tracking is not much worse than the 9900 Prestige which costs almost twice as much.<\/p>\n\n\n

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\n Oral-B iO Series 6 (iO6) <\/div>\n <\/div>\n
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(5)<\/div>\n
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\n Oral-B - check price <\/a>\n \u00a3104.99 Amazon <\/a>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n \n\n\n

If you prefer to have all the features and want the absolute best, I do think the Prestige is the brush to go for. It looks and feels better in hand, you just need deep pockets.<\/p>\n\n\n

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\n Philips Sonicare DiamondClean 9900 Prestige <\/div>\n <\/div>\n
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(4.9)<\/div>\n
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\n Philips - check price <\/a>\n \u00a3224.99 Amazon <\/a>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n \n\n\n

The reality is you don\u2019t need all the tech and extras most of these brushes offer. The iO3 cleans the teeth just as well for a lot less money. It\u2019s the best for those on a budget and a more sensible option to buy.<\/p>\n\n\n

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(4.8)<\/div>\n
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\n Oral-B - check price <\/a>\n \u00a357.97 Amazon <\/a>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div><\/div>\n\n\n\n
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Oral-B iO vs Sonicare - equivalent models<\/h2>\n\n\n\n

At the time of writing there are 8 different iO models and 3 DiamondClean brushes (not accounting for colour variations & \u2018special edition\u2019 versions).<\/p>\n\n\n\n

From a feature and price perspective, I feel the following are equivalent models.<\/p>\n\n\n\n

Oral-B<\/th>Philips Sonicare<\/th><\/tr><\/thead>
iO Series 10<\/td>DiamondClean Prestige 9900<\/td><\/tr>
iO Series 9<\/td>DiamondClean Prestige 9900<\/td><\/tr>
iO Series 8<\/td>DiamondClean Smart 9400<\/td><\/tr>
iO Series 7<\/td>DiamondClean Smart 9400<\/td><\/tr>
iO Series 6<\/td>DiamondClean Smart 9400<\/td><\/tr>
iO Series 5<\/td>DiamondClean Smart 9400<\/td><\/tr>
iO Series 4<\/td>DiamondClean 9000<\/td><\/tr>
iO Series 3<\/td>DiamondClean 9000<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

The iO Series is one range or family of toothbrushes from Oral-B. They also offer ranges such as Vitality, Pro, Smart and Genius, all of which have several models within them.<\/p>\n\n\n\n

It is a similar story for Philips. \u2018DiamondClean\u2019 (non-smart) and \u2018DiamondClean Smart\u2019 are essentially 2 different ranges of brushes, but those under the \u2018DiamondClean\u2019 range have what many would consider to be smart features.<\/p>\n\n\n\n

ExpertClean, ProtectiveClean, 4000 Series, 3000 Series and more are other toothbrush ranges Sonicare offer.<\/p>\n\n\n\n

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iO Series 3, 4, 5 and 8<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n
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Does one clean better than the other?<\/h2>\n\n\n\n

The short answer is no.<\/p>\n\n\n\n

From my time using them, I prefer Oral-B\u2019s cleaning action. It feels more intense and like it\u2019s cleaning deeper. But my plaque disclosing results haven\u2019t shown any reason to suggest the DiamondClean brushes clean worse.<\/p>\n\n\n\n

If you brush twice a day, for 2 minutes each time, with the correct technique, then the reality is that all models from either brand are going to achieve comparable results.<\/p>\n\n\n\n

Your dentist wouldn\u2019t be able to tell you were using one brand or model over another.<\/p>\n\n\n\n

Therefore it\u2019s not worth worrying about. Your brushing time, frequency and technique have a far bigger impact on your dental health. You could have the \u2018best\u2019 toothbrush, but unless you use it correctly you\u2019re not going to benefit.<\/p>\n\n\n\n

But, this study<\/a>, would suggest the iO Series removed up to 48% more plaque at the gumline and 62% more effective at reducing gum problems. Make up your own mind as to whether there might be some bias, given the research was funded by Oral-B\u2019s parent company Procter and Gamble. <\/p>\n\n\n\n

The way the bristles move is different. The iO bristles have an oscillating, rotating and vibrating cleaning action compared to the back and forth bristle movements of Sonicare. <\/p>\n\n\n\n

Clinical studies such as this one<\/a> suggest a marked difference in the clean offered by the oscillating-rotating brush compared to the sonic option.<\/p>\n\n\n\n

On the other hand, a 2019 study in the Journal of Clinical Dentistry<\/a> (page A9) funded by Philips Oral Healthcare shows their sonic toothbrush outperforms the oscillating-rotating Oral-B.<\/p>\n\n\n\n

An independent review of existing studies found that there is some evidence<\/a> that Oral-B brushes are better at cleaning. However, the difference is small and the clinical significance of this is unclear, thus, reconfirming that one doesn\u2019t clean better than the other.<\/p>\n\n\n\n

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Complicating matters further, the real-time tracking that is available on some of these might allow better cleaning results to be achieved, from one model to another. <\/p>\n\n\n\n

Specific models such as the DiamondClean 9000 track and log some of your brushing habits, but it does not track and display your brushing in real-time. It won\u2019t show you areas of the mouth and teeth you haven\u2019t brushed, whereas the others do.<\/p>\n\n\n\n

Those that do can help you learn to improve your brushing technique. In turn, you will get better results long term. But, this data is making you a better brusher. The brush itself is not cleaning the teeth any better.<\/p>\n\n\n\n

In reality, it is a lot of effort for very little gain. I\u2019ve got all these models and more. Do I use the tracking data and log into the app regularly? No, I don\u2019t.<\/p>\n\n\n\n

People who have bought these models and similar ones have said the same thing to me. <\/p>\n\n\n\n

This tech isn\u2019t necessarily a waste, but there is no point paying for and having it unless you will use it.<\/p>\n\n\n\n

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Video overview<\/h2>\n\n\n\n

In the video below I explain the Oral-B iO and the Sonicare DiamondClean ranges and talk about my hands-on experience testing them.<\/p>\n\n\n\n

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