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Oral-B iO Series 6 vs Series 7 vs Series 8 vs Series 9

Oral-B iO Series 6, 7, 8 & 9

Which one would we choose?

Our choice: Oral-B iO Series 9 (view on Amazon)
2nd choice: Oral-B iO Series 7 (view on Amazon)

The iO Series 7 is the brush to go for based on features and price alone if I base this comparison on the recommended selling price of £400.

The Series 9 is the top of the line model and will be more widely sold and promoted. However, it has a £500 price tag.

For that extra £100 the benefits are notably the 3D tracking and a travel case that allows you to charge the toothbrush whilst inside.

This, therefore, is not a justifiable premium in my mind over the Series 7.

But, the reality is that it is very likely that the iO Series 9 will actually sell for much less than its retail price and I suspect will actually sell on average around £250, thus making it a potentially justifiable premium for the extras it offers.

Our Choice
Oral-B iO9 Black Ultimate Clean Electric Toothbrush for Adults, Revolutionary Magnetic Technology, Colour Display, 1 Toothbrush Head, 1 Charging Travel Case, 7 Modes, Gift for Men/Women, 2020 Edition
Oral-B Braun iO 8n Electric Toothbrush White 1 Unit (Ships with two-pin EU plug)
Oral-B iO7 White Ultimate Clean Electric Toothbrush for Adults with Revolutionary Magnetic Technology, B&W Display, 1 Toothbrush Head, 1 Premium Travel Case, 5 Modes, Gift for Men/Women, 2020 Edition
Oral-B iO6 Electric Toothbrush with Revolutionary iO Technology, 1 Toothbrush Head & Travel Case, 5 Modes with Teeth Whitening, UK 2 Pin Plug, Grey Opal
Brush Name
Oral-B iO Series 9
Oral-B iO Series 8
Oral-B iO Series 7
Oral-B iO Series 6
Customer Rating
-
Electric Teeth Rating
5/5
5/5
5/5
5/5
Price
£249.99
Price not available
Price not available
£299.99
Prime
-
-
Our Choice
Oral-B iO9 Black Ultimate Clean Electric Toothbrush for Adults, Revolutionary Magnetic Technology, Colour Display, 1 Toothbrush Head, 1 Charging Travel Case, 7 Modes, Gift for Men/Women, 2020 Edition
Brush Name
Oral-B iO Series 9
Customer Rating
Electric Teeth Rating
5/5
Price
£249.99
Prime
Oral-B Braun iO 8n Electric Toothbrush White 1 Unit (Ships with two-pin EU plug)
Brush Name
Oral-B iO Series 8
Customer Rating
Electric Teeth Rating
5/5
Price
Price not available
Prime
-
Oral-B iO7 White Ultimate Clean Electric Toothbrush for Adults with Revolutionary Magnetic Technology, B&W Display, 1 Toothbrush Head, 1 Premium Travel Case, 5 Modes, Gift for Men/Women, 2020 Edition
Brush Name
Oral-B iO Series 7
Customer Rating
Electric Teeth Rating
5/5
Price
Price not available
Prime
-
Oral-B iO6 Electric Toothbrush with Revolutionary iO Technology, 1 Toothbrush Head & Travel Case, 5 Modes with Teeth Whitening, UK 2 Pin Plug, Grey Opal
Brush Name
Oral-B iO Series 6
Customer Rating
-
Electric Teeth Rating
5/5
Price
£299.99
Prime

Video Comparison

Oral-B iO Series 7 vs 8 vs 9

Key Differences

The following table lists the key differences between each series only.

If a feature is not listed, then it should be assumed that all 4 series have the feature. For example, all 4 have an OLED display and a built-in timer and pressure sensor.

Series 6Series 7Series 8Series 9
Oral-B iO Series 6 boxOral-B iO Series 6 vs Series 7 vs Series 8 vs Series 9 1Oral-B iO Series 6 vs Series 7 vs Series 8 vs Series 9 2Oral-B iO Series 6 vs Series 7 vs Series 8 vs Series 9 3
Recommended Retail Price (RRP)£299.99£399.99£449.99£499.99
Handle Colour(s)Black Onyx
White Alabaster
Anthracite Grey
Pink
Black Onyx
White Alabaster
Black Onyx
White Alabaster
Violet Ametrine
Black Onyx
White Alabaster
Rose Quartz
Number of Cleaning Modes5567
Daily Clean YesYesYesYes
SensitiveYesYesYesYes
Super Sensitive XXYesYes
IntenseYesYesYesYes
WhitenYesYesYesYes
Gum CareYesYesYesYes
Tongue CleanXXXYes
Interactive DisplayBlack & WhiteBlack & WhiteColourColour
Artificial IntelligenceYesYesYesYes
3D Clean TrackingXXXYes
Travel CaseYesYesYesYes – Power2go Charging Travel Case
Number of Brush Heads Included1111
Box Contents – Oral-B iO Toothbrush Handle
– 1 x iO Ultimate Clean Brush Heads
– 1 x Travel Case
– 1 x Charging Stand
– Oral-B iO Toothbrush Handle
– 1 x iO Ultimate Clean Brush Heads
– 1 x Brush Head Refill Holder
– 1 x Travel Case
– 1 x Magnetic Charging Stand
– Oral-B iO Toothbrush Handle
– 1 x iO Ultimate Clean Brush Heads
– 1 x Brush Refill Holder
– 1 x Travel Case
– 1 x Magnetic Charging Stand
– Oral-B iO Toothbrush Handle
– 1 x iO Ultimate Clean Brush Heads
– 1 x Brush Head Refill Holder
– 1 x Power2go Charging Travel Case
1 x Travel Case Power Adapter
– 1 x Magnetic Charging Stand
Other Key InformationTakes up to 12 hours to recharge.Takes up to 3 hours to recharge.Takes up to 3 hours to recharge.Takes up to 3 hours to recharge.

iO Series 6 vs Series 7

  • The Series 7 comes with a magnetic charger that recharges the battery in 3 hours, compared to the standard Oral-B charger supplied with the Series 6 which takes up to 12 hours.
  • The Series 7 comes with a refill holder that holds and protects 2 brush heads.
  • The Series 6 is available in 4 colours (black onyx, white alabaster, pink & anthracite grey) compared to the 2 colours of the Series 7 (white alabaster & black onyx).
  • The Series 6 has a recommended retail price of £300, £100 less than the £400 of the Series 7.

iO Series 7 vs Series 8

  • The Series 8 has 6 cleaning modes (daily clean, sensitive, super sensitive, intense, whiten & gum care) compared to the 5 of the Series 7 (daily clean, sensitive, intense, whiten & gum care).
  • The Series 7 has a black and white interactive display compared to the colour display on the Series 8.
  • The Series 8 is available in 3 colours (black onyx, white alabaster & violet ametrine) compared to the 2 colours of the Series 7 (white alabaster & black onyx).
  • The Series 7 has a recommended retail price of £400, £50 less than the £450 of the Series 8.

iO Series 8 vs Series 9

  • The Series 8 has 6 cleaning modes (daily clean, sensitive, super sensitive, intense, whiten & gum care) compared to the 7 of the Series 9 (daily clean, sensitive, intense, whiten, gum care & tongue clean).
  • The Series 9 has full 3D tracking for your cleaning performance that the Series 8 does not.
  • The Series 9 comes with a power2go charging case that allows the iO to be charged inside whereas the Series 8 comes with a standard travel case.
  • Both models are available in black onyx and white alabaster colour options. The 9 Series is available in rose quartz colour also whereas the 8 Series is available in violet ametrine instead.
  • The Series 8 has a recommended retail price of £450, £50 less than the £500 of the Series 9.

iO Series 7 vs Series 9

  • The Series 9 has 7 cleaning modes (daily clean, sensitive, super sensitive, intense, whiten, gum care & tongue clean) compared to the 5 of the Series 7 (daily clean, sensitive, intense, whiten & gum care).
  • The Series 7 has a black and white interactive display compared to the colour display on the Series 9.
  • The Series 9 has full 3D tracking for your cleaning performance that the Series 7 does not.
  • The Series 9 comes with a power2go charging case that allows the iO to be charged inside whereas the Series 7 comes with a standard travel case.
  • The Series 9 is available in 3 colours (black onyx, white alabaster & rose quartz) compared to the 2 colours of the Series 7 (white alabaster & black onyx).
  • The Series 7 has a recommended retail price of £400, £100 less than the £500 of the Series 9.

These differences are explained at length later in this article. However, you might wish to learn more about each brush being compared. To do so, check out our hands-on reviews:

Please note. Every effort is made to ensure the key differences listed are correct, but these differences are subject to change without notice. Products and the box contents can be changed without notice and different variants can exist.

iO Series 9 White Alabaster

Detailed comparison: what’s the difference between the Oral-B iO Series 6, Series 7, Series 8 and iO Series 9?

The number of differences between the Oral-B iO 6, 7, 8 and 9 Series is not as significant as you might expect.

Technically there are more similarities than there are differences. Here is a list of ways in which all 4 series of the iO are the same. All of the models have:

  • Built-in timer (2 minutes)
  • Built-in pacer (30 seconds/quadrants)
  • Built-In pressure sensor – lit red when pressure is too great, green when it is just right
  • Rechargeable lithium-ion battery offering 14+ days of use between charges
  • Bluetooth technology to connect to a smartphone
  • AI technology to track the location of the toothbrush in the mouth
  • Frictionless magnetic drive system
  • Oscillating-rotating cleaning action with micro-vibrations
  • Interactive OLED display to provide real-time feedback and encouragement
  • Travel case to at least store and protect the handle and 1 brush head

Not available on the Series 6 is the:

  • Magnetic charging stand
  • Quick charging – in around 3 hours

Instead, it has a standard Oral-B charger that takes up to 12 hours to recharge the brush.

It is primarily the box contents, number of cleaning modes and price that differs.

The top of the line Series 9 comes with 7 cleaning modes, whilst the 8 comes with 6 and the Series 6 and 7 comes with 5.

The modes and which model has what are listed in the following table.

ModesSeries 6Series 7Series 8Series 9
Number5567
Daily CleanYesYesYesYes
SensitiveYesYesYesYes
Super SensitiveXXYesYes
IntenseYesYesYesYes
WhitenYesYesYesYes
Gum CareYesYesYesYes
Tongue CleanXXXYes

The different cleaning modes are far from essential and not needed. The extra modes have slightly different cleaning times and settings which may make them more suitable or practical for some.

Just because the Series 7 does not have a tongue clean mode that would last for 20 seconds on the Series 9, does not mean you can’t brush the tongue with the Series 7. You would just need to use a different mode.

The lack of additional modes does not ultimately have any bearing on the cleaning results.

To learn more about the differences, do read our Oral-B cleaning modes explained article.

Oral-B iO Brushing Modes

All 4 of the variants have an interactive OLED display, however where the 8 and 9 series have a colour display, with the series 6 and 7 it is black and white.

Where the iO Series 9 stands out over the other models is the inclusion of the 3D tracking.

All have the AI to work out the position of the toothbrush in the mouth, but only the Series 9 tracks 16 different zones. The other models track just 6.

You get a more detailed visual representation of the 16 zones in the app when using the iO9. Essentially, the top of the line model makes it easier to visualise where you are doing things right and wrong.

All models are available in black onyx and white alabaster colour options.

With the Series 8 and 9, there is the choice of a third colour.

That choice is violet ametrine in the Series 8 and rose quartz with the Series 9.

The Series 6 is available in 4 colours in total. You get the option of pink and anthracite grey too.

The difference here is the colour of the toothbrush handle only.

With the black onyx models, the handle, heads, charging stand, travel case and power adapter are all black in colour.

With the white alabaster the handle, heads, charging stand, travel case and power adapter are all white in colour.

When it comes to the rose quartz and violet ametrine variants, the handles are either colour, but all the accessories are white.

Oral-B iO Series 9 Handle Colours

With the Series 6, 7 and 8 the travel case holds the brush handle and up to 2 brush heads. However, the travel case with the 9 Series holds the brush handle and just 1 brush head.

However, the 9 Series has an extra feature not available on the 6, 7 and 8.

Called ‘power2go’ the travel case with the 9 Series allows the iO to be recharged whilst sat inside.

The toothbrush is charged via a detachable power adapter.

The brush cannot recharge without the power adapter being connected.

The power adapter is proprietary to Oral-B products. It does not use the more desirable USB Type-C charging.

Oral-B iO Series 9 Box

These differences have a knock-on impact on the price. There is a £100 difference in the recommended price of the 7 Series compared to the 9 Series. £400 compared to £500.

The Series 8 is in the middle at £450.

These differences are because of the perceived value Oral-B places on the additional box contents and features each model offers.

Does one clean better than the other?

No, simply put they all clean as well as each other.

Yes, the 8 and 9 Series do have extra modes compared to the 7, but these modes don’t necessarily alter the actual cleaning results.

Instead, the modes alter a users experience and comfort with the toothbrush.

There are arguments to suggest a toothbrush that suits a users needs or wants better can result in a better clean of the teeth. But, the evidence for this, particularly clinical data is basically non existant.

For many years Oral-B and other brands have offered multiple cleaning modes on electric toothbrushes and I have yet to say any meaningful data to suggest these extra modes pay dividends for the majority of users.

Oral-B iO Ultimate Clean Brush Head Professional Clean
Oral-B iO Ultimate Clean Brush Head Professional Clean

If your brushing technique is bad. There is a strong argument to suggest that the iO9 and its tracking of 16 zones can encourage you to brush all your teeth better than the 6 zones that are tracked with the iO 6, 7 and 8.

The 16 tracked zones are as follows:

  • Upper rear right
    • Front surface
    • Biting surface
    • Inside surface
  • Upper font
    • Front surface
    • Inside surface
  • Upper rear left
    • Front surface
    • Biting surface
    • Inside surface
  • Lower rear right
    • Front surface
    • Biting surface
    • Inside surface
  • Lower front
    • Front surface
    • Inside surface
  • Lower rear right
    • Front surface
    • Biting surface
    • Inside surface

Whereas the 6 zones tracked with the other models are:

  • Upper rear right
  • Upper front
  • Upper rear left
  • Lower rear right
  • Lower front
  • Lower rear right

The Series 9 app screen is configured in such a way that you can clearly see which of the 16 zones you have and have not brushed.

16 dotted zones sit in the centre of the on-screen display in a circular formation. As each zone is brushed correctly, that dotted zone disappears until no dotted zones remain and all the teeth on the large visualisation turn white.

When only 6 zones are tracked, you can essentially spend all the time cleaning only 1 of the surfaces within that zone and the brush will still consider the zone brushed. That isn’t the case with the premium iO9.

Of course, with any toothbrush, iO series or not, you want to be giving fair attention to all of the 16 zones so you have an even clean to the teeth and gums.

6 zone tracking relies on you making sure you cover all the surfaces.

Thus, to master your technique the Series 9 does have that bit extra to push you to make sure you are making the correct contact with all surfaces.

But, how much difference this really makes in everyday use, is a bit subjective.

Is one better priced than the other?

Yes, the Oral-B iO Series 6 is the best value at £300.

The Series 7 is £100 more expensive than the iO6.

The 8 Series commands a £50 premium over the 7, making it £450 and the 9 Series comes in at £500.

Yes, the 8 and 9 do offer a fraction more as part of their packages, but the ‘extras’ don’t really add up to the real world price difference.

The logical and most sensible purchase of these, therefore, is the Series 6, based on price alone.

But, let’s take a reality check.

These are ridiculous prices and the reality is that the typical selling prices will be at least 50% less.

This, therefore, makes them £150, £200, £225 and £250 respectively.

But despite the Series 6 actually being quite a bit cheaper, the Series 7 remains the best value based on actual selling price data.

But ultimately, pick the one you feel is best suited to you.

Please note that all prices quoted are approximates and will vary based on location, supplier and time of purchase.  These figures were correct at the time of writing and should not be relied upon as hard fact, but used as a guide during your decision process.

Conclusion

The differences between each model in the iO Series are relatively subtle.

As you will have seen it easily becomes confusing as to know which variant is best to buy.

All of these brushes offer more than what you need.

You do not need to spend as much as this or find a toothbrush with as many features as the iO Series to clean your teeth well.

The Oral-B Pro 2 2500 does a decent job for a fraction of the price!

That said, the iO marks a major design change in the Oral-B line up of products and is considerably quieter.

On paper alone, the iO Series 6 is the most sensible purchase based on what you get for the price. With a £200 premium price for the 9 Series, it is not the sensible choice for the limited differences.

However, the reality is that the actual selling price, not the recommended, will be such that the Series 9 will be the logical buy because the price premium over the 6 Series will be justifiable.

Our Choice
Oral-B iO9 Black Ultimate Clean Electric Toothbrush for Adults, Revolutionary Magnetic Technology, Colour Display, 1 Toothbrush Head, 1 Charging Travel Case, 7 Modes, Gift for Men/Women, 2020 Edition
Oral-B Braun iO 8n Electric Toothbrush White 1 Unit (Ships with two-pin EU plug)
Oral-B iO7 White Ultimate Clean Electric Toothbrush for Adults with Revolutionary Magnetic Technology, B&W Display, 1 Toothbrush Head, 1 Premium Travel Case, 5 Modes, Gift for Men/Women, 2020 Edition
Oral-B iO6 Electric Toothbrush with Revolutionary iO Technology, 1 Toothbrush Head & Travel Case, 5 Modes with Teeth Whitening, UK 2 Pin Plug, Grey Opal
Brush Name
Oral-B iO Series 9
Oral-B iO Series 8
Oral-B iO Series 7
Oral-B iO Series 6
Customer Rating
-
Electric Teeth Rating
5/5
5/5
5/5
5/5
Price
£249.99
Price not available
Price not available
£299.99
Prime
-
-
Our Choice
Oral-B iO9 Black Ultimate Clean Electric Toothbrush for Adults, Revolutionary Magnetic Technology, Colour Display, 1 Toothbrush Head, 1 Charging Travel Case, 7 Modes, Gift for Men/Women, 2020 Edition
Brush Name
Oral-B iO Series 9
Customer Rating
Electric Teeth Rating
5/5
Price
£249.99
Prime
Oral-B Braun iO 8n Electric Toothbrush White 1 Unit (Ships with two-pin EU plug)
Brush Name
Oral-B iO Series 8
Customer Rating
Electric Teeth Rating
5/5
Price
Price not available
Prime
-
Oral-B iO7 White Ultimate Clean Electric Toothbrush for Adults with Revolutionary Magnetic Technology, B&W Display, 1 Toothbrush Head, 1 Premium Travel Case, 5 Modes, Gift for Men/Women, 2020 Edition
Brush Name
Oral-B iO Series 7
Customer Rating
Electric Teeth Rating
5/5
Price
Price not available
Prime
-
Oral-B iO6 Electric Toothbrush with Revolutionary iO Technology, 1 Toothbrush Head & Travel Case, 5 Modes with Teeth Whitening, UK 2 Pin Plug, Grey Opal
Brush Name
Oral-B iO Series 6
Customer Rating
-
Electric Teeth Rating
5/5
Price
£299.99
Prime

Your Opinions

Do you own or have you used the Oral-B iO Series?

Are there certain features that you really like or dislike?

Let us know what you think about this brush and let others who may well be considering purchasing one know your opinions before they do.

About Jon Love

Jon is a leading voice on electric toothbrushes and has been quoted by mainstream media publications for his opinions and expertise.

Having handled & tested hundreds of products there really is very little he does not know about them.

Passionate about business and helping others, Jon has been involved in various online enterprises since the early 2000s.

After spending 12 years in consumer technology, it was in 2014 that he focused his attention on dental health, having experienced first-hand the challenge of choosing a new toothbrush.

Read More

Leave a comment or question

29 thoughts on “Oral-B iO Series 6 vs Series 7 vs Series 8 vs Series 9”

    • Hi Eileen. The iO Series have their own range of brush heads and don’t use the normal head from Oral-B. They are not interchangeable.

      Reply
  1. Hi Jon,
    Just wanted to thank you for the in depth review. I do find Oral brand very confusing, It feels like they are flooding the market to ensure customers are as confused as they can be so they either buy the most expensive or the cheapest.

    I just noticed in the UK, Costco doing a deal from 14th of Feb for the iO6 for 7 – £95 which is a great price. That said i also want to share with your readers my personal view on toothbrush and touch on something you said before.

    – Once you had a electric toothbrush you soon will know how long to brush your teeth and when to change the brush head. The key indicator is the color change from “blue” to whiteish.

    – You will also learn how long each secontion needs to be brushed, in fact ask your dentist next time and they will show you how to hold it and what to do.

    – My experience and my dentist said don’t be to tight with the toothpaste, put plenty (many don’t put enough).

    – Brush in the morning and in the evening 2 min each and use floss (many ppl who have bad smell is due to the food between the tooth which causes the smell).

    All the function IMHO is just marketing. They have no additional function and i would assume 99 of 100 customers would not even bother to use them.

    I hope this helps those who think this new bursh might do the trick, in fact the 2500 one is good enough.

    Reply
    • Hi Essa.

      Thanks for the comment and I agree with what you say about flooding the market. They could easily have a cheap, mid range and premium option, keep things simple etc, but by having something at every price point it ensures a consumer buys something.

      I agree with many of the points. Not sure I do about the toothpaste, you only need a pea sized amount really.

      You have understood the most important things though and sounds like you are on top of your oral health. Good work. 👍

      Reply
  2. Hi,

    I want to buy either the iO6 or iO9, to help make sure I’m sufficiently cleaning all surfaces of my teeth, so hopefully I can learn to do a better job. I don’t mind if sometimes I have to clean longer because the app doesn’t keep up. The iO9 is currently nearly 2.5x the price of the iO6 so I’m trying to figure out if it is worth the premium.

    I’m really unclear about how the tracking in the app differs between iO6 and iO9. I know the iO6 doesn’t include a 3D tracking image in the app and I know the iO9 provides more detailed tracking (16 zones), but does the iO6 still track which surfaces you have successfully cleaned (inside, biting surface, outside) for each quadrant? Or to put it another way, for the extra money does the iO9 app give sufficiently more detail that it will make a real difference to how well I learn to thoroughly clean all my teeth?

    Reply
    • Adrian.

      The short answer is the 6 will probably do the job just fine for you. The basics & key things can be learnt from the app and the feedback it gives. It will help promote better brushing and perfect your technique if you are committed. Few people need the iO9 although it does track more zones as you say.

      The io6 is looking at 6 zones (upper right, upper front, upper rear, lower right, lower front and lower rear). It isn’t tracking specific surfaces, front back, biting etc, it is looking at them as a whole.

      The iO9 is tracking all the surfaces for these sections, hence the total of 16.

      It can be hard to put into words, it’s one of those things that is best explained with visuals/demos.

      I hope that helps.

      Reply
      • Thanks. I’m still not clear though.

        Does that mean if, for example, when cleaning my upper front teeth I spent all the time cleaning the outside surface (near my lips), and failed to clean the biting surface or inside surface (near my tongue), the iO6 might still think I’d done a good job for that zone?

        Obviously I wouldn’t do that. But, it’s quite likely I might focus more on one surface than another without realising it.

        Would the iO9 be more able to spot and report mistakes like that?

        Reply
        • Hi again Adrian. Sorry if I wasn’t explicit enough.

          Yes, unfortunately, with the iO6, for example, when cleaning your upper front teeth if you spent all the time cleaning the outside surface (near your lips), and failed to clean the biting surface or inside surface (near your tongue), the iO6 would still think you had done a good job for that zone.

          I think it is all based around the logic (I might be wrong) that by seeing the on-screen visual and having to actively think about it a bit more, you do a better job of cleaning.

          You have made me think a video/more detailed explanation of these differences would be worthwhile.

          I hope this now clarifies things. Any more questions, please do ask.

          Reply
  3. I know you said smart brushes aren’t really worth it but I’ll last you know why I bought a two pack of the Oral B io6.

    I’m 40 and my parents never taught me how to brush my teeth or encouraged me to do so. My teeth are also very wonky so I clearly should have had braces as a teenager but was never given the option.

    I now have my own child and I’ve tried to encourage my child to brush their teeth but it’s not been easy to be consistent when I’m not brushing regularly enough myself and I have pretty poor technique.

    We both went to the dentist recently. My child is starting to lose baby teeth but also has two that require fillings. It’s one thing having fillings in baby teeth but now that their adult teeth are coming through it’d be irresponsible to not to my best to ensure they care for their adult teeth as they start to come through. I lost two fillings near the start of COVID, both from baby teeth (yes, baby teeth at 40) – I got the dentist to remove one because food was getting stuck in a big gap left after part of the baby tooth snapped off then got him to remove the other one after the bulk of the tooth had snapped off. The teeth had died after he’d decided not to replace the fillings that’d been put in many years ago by my previous dentist.

    So, I was aware that we both needed to work on our oral hygiene. We’re both quite in to games and getting achievements in games and working towards targets. This, as well on the coaching for coverage, pressure, time, routine etc made a smart toothbrush feel like the right choice for us. I’d have never paid full price but Amazon offered the io6 in a dual pack for Black Friday. With cashback, voucher codes etc I was able to get the two io6 brushes for under £50 each which seemed not to bad. So far it’s making us brush our teeth in the morning and evening. My kid even wanted to brush at lunchtime to earn a medal so I had to say that over-brushing has the potential to cause more damage than not brushing at all. We’re also waiting until at least an hour after eating. Because our technique isn’t great it’s taking between 2 and 4 minutes to be told we’ve brushed every area to an acceptable standard. Are you saying we shouldn’t move mouthwash at all? When should we floss. I’ve always kept floss as, even if I didn’t brush enough, I’ve always hated bits of food stuck between my teeth of on my gums so I’ve always tried to keep my teeth clean in other ways – just not brushing enough. Gamifying it does make me pay better attention to it, though. Ultimately I just want to be a decent parent and do what’s best for my child. I wish my dental surgery had a hygienist. I’ve known other people who’ve been taught how to brush their teeth properly by one.

    Reply
    • Thanks for the comment and I am so pleased to read that the smart toothbrush that is the Oral-B iO6 is working for you. This is fantastic.

      We say you don’t need a smart toothbrush as many are not motivated by the app and lose interest quickly. You and your son appear to be the opposite, this is great and if it makes the pair of you better at cleaning your teeth then this is a good thing and we certainly approve.

      At around £50 per brush that is also a cracking price for what is a premium toothbrush.

      It is important to be flossing (cleaning between the teeth). We generally recommend flossing before brushing, but ultimately flossing at any time is better than not at all.

      With a good oral care routine, like you are on the path to achieving, you shouldn’t need to use mouthwash at all. It can help at times you might not brush, so after lunch for example. In some instances, it may be recommended by dental professionals to be used as an extra tool to help keep the mouth clean, but it isn’t essential.

      It is surprising your dental surgery doesn’t have a hygienist, but if you are committed you could look for one locally, at another practice and go together with your son and discuss your oral care routine etc. It will cost you, but it may well be a good investment.

      The following video I believe will be helpful to you and your son on your journey to better oral health: https://www.youtube.com/watch?v=7k3wjTOhYwY

      To conclude, great job and it is wonderful to see you taking a keen interest in ensuring your own teeth and your sons are looked after. 👍

      Reply
  4. Jon,

    Excellent review! And I’m not just saying that due to it having precisely what I was looking for today. A detailed break down of the differences between the iOs 7, 8 and, 9.

    She’ll be gifting me the 7 from my Christmas wish list. In a surprise plot twist, I’ll be handing her the 9 at the same time.

    Oral-B has added value to the iO9 by including two additional brush heads for a total of four. The iO8 meanwhile, now comes with three brush heads in total.

    Added value is always appreciated. Bit miffed however that Oral-B does not offer the iO9 in violet or the iO8 in pink. These things exist at price points that should include all of the colors Oral-B has being available for each of their models. She’d enjoy and love a violet iO8, but it’s the rose of the iO9 that will get a sparkle going in her eye.

    So while the added value of the two additional brush is appreciated, they’ve still got consumers such as myself spending money on what is essentially, (correct me if I’m mistaken) unlocking 3D renders and teeth brushing tips in the app, yes?

    And here I’m doing it because, I’m shopping a color!

    Thanks for the thorough review Jon

    Have a great holiday!

    Reply
    • Thanks for the kind words Will.

      Sounds like you and your partner will have sparkly teeth this festive season!

      I hear you on the colours. The choice would be nice, but unfortunately, there is no violet iO9 or pink iO8.

      The iO9 does have an extra cleaning mode and power2go charging travel case over the iO8. But yes it does also in addition have the 3D teeth tracking within the app, which means it is tracking more areas of the mouth as your partner brushes.

      I hope she likes it. It is a lovely toothbrush.

      Reply
  5. Hi Jon,
    My wife and I have both got the iO7 toothbrushes. On the display its now saying “refill is used up” then it changes to “switched YES or NO.
    Do you know what this means, we bought the toothbrushes at the same time and its showing on both brushes this week.

    Reply
    • Andy. This should mean it is time to change the brush heads. Have you had them for about 3 months and been brushing 2 minutes twice a day each time?

      Reply
      • Hi Jon,
        Thanks for the quick reply. We have had them for about 3 months, only brush once a day though as we are both a bit lazy. 😀😀. I thought it might be to do with the brush heads, no mention in the instructions though. Thanks for your help.
        Regards
        Andy

        Reply
        • No worries Andy. Please, for the sake of yours and your wife’s teeth do brush twice a day. You will benefit in the long run.
          Perhaps set yourself the challenge and give yourself a reward at the end.

          Reply
  6. What shocked me is that the “travel” case does not have batteries in, to allow a few more days of charge similar to that of AirPods and their case?

    Reply
  7. Hi Jon… thanks for the great review… very useful… I am looking at the io series. I was looking at the io8 duo so that my partner could have her own brush. I think this is better for the app usage, is this the case? I like the 3d tracking of the io9 but don’t really want to buy two of them! What is the AI like on the others? Do they let you know where you are going wrong? Many thanks. The other option I guess is the Genius 9900. At the moment there is around £80 price difference between the two sets… so you think the io worth the extra? Matt

    Reply
    • Hi Matt.
      It is better to have separate brushes to track your brushing habits. It is possible to do it with 1, but to be honest it’s far from ideal.
      The AI is comparable on all 3 models. The benefits of the iO9 tracking really are limited and not worth the extra expense when buying 2 handles.
      The app will give you enough feedback in my opinion so don’t worry about the extra 3D tracking all that much on the iO9.
      The configuration with the 9900 is very different. Definitely go for the iO series over this. The 9900 requires you to mount your phone in a holder and use your smartphone camera for tracking, much more of a faff!
      You could look at the Genius X. This doesn’t require the smartphone camera to be used. Works like the iO but a little less glitzy and feature rich.
      I would argue do you even need the iO Series at all. Don’t get me wrong, they are great. But, a basic model cleans just as well. If you and your partner can just make sure you are brushing for the correct time and the correct technique you could save yourself a lot of money.

      Reply
  8. Hi Jon ! Thank you for your work, it is really useful. On Black Friday I bought the genius X and the io 7 (same price). But I don’t know which one I should keep since I am not really able to compare them. What do you think about that?

    Reply
    • If you bought them at the same price, then I would probably go for the iO Series 7. It is the sleeker unit overall.

      Do bear in mind that with the iO you don’t have the ability to charge the toothbrush in the case and replacement brush heads are more expensive.

      Reply
        • Yes, the quality and efficiency of the clean is similar. The motor in the brushes are slightly different, but not significant.

          At the moment, a typical brush head for the iO is working out around £10 compared to approx £3 for the Genius X.

          I am sure the prices will fall in time, they are likely higher because they are new.

          This comparison has more detail – although to be fair, I am comparing the iO Series 9 vs the X in this comparison.

          Reply
  9. We currently own a oral b teen brush. Unfortunately whenever my kids brush their teeth in the morning, the noise is enough to wake all others in the house.
    How is the noise on the newer models?

    Reply
    • Hi Pauline.

      The iO series is quieter, by about 10 decibels. It is also a little less mechanical sounding, more of a loud humming sound.

      The iO Series are the only ones from Oral-B to be quieter, all other brushes produce the same noise.

      Reply
  10. Dear Jon,

    Thanks for your work. I am in the market for an Oral-B iO 9 and I see that sometimes the package mentions “Series 9” while some other times “Series 9N”.

    I haven’t been able to understand the difference between the two, can you please help here?

    Kind regards.

    Reply
    • Hi Ed.

      Yes, it is confusing and I am not 100% I can tell you precisely why they have different names, but what I have gleaned so far is.

      For other brushes in the past ‘N’ has usually referred to the standard brush head, ‘CrossAction’ or in the case of the iO Series ‘Ultimate Clean’.

      N seems to be the badge placed on models sold in central Europe. I note you might be in Italy, so this would apply here. Whereas in the UK it is just referred to as Series 9.

      The other difference, from what I can tell is the 9N comes with 2 pin European power adapter, which would apply for Europeans in the likes of Italy, Germany, France etc.

      In the UK we have 2 pin power in our bathrooms, but the pin size is different!

      As far as I am aware there are no technical/performance differences between these models.

      I know this is not a definitive answer, but I hope it helps.

      Reply
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