Users of electric toothbrushes see themselves as superior to people who have to move their wrist backwards and forwards each morning and evening. Today’s smart toothbrushes – which interact with mobile apps – are the new premium dental cleaners, and you’ll find excellent examples from major brands such as Oral-B and Philips, and newcomers such as Kolibree. We tested a range of products to find the best electric toothbrush - paying particular attention to the smart, app-connected brushes, though we've looked at un-connected brushes too.
The vast majority of electric toothbrushes aren’t 'smart', in that they don’t come with a dedicated app. You can, however, easily download an app and use it alongside a non-smart toothbrush. This certainly makes sense for kids, who need a bit more fun than most smart brush apps allow.
In addition to the following buying advice and our reviews, you might want to check our guide to the best electric toothbrush deals for the latest offers - all of which reflect the actual prices that brushes are sold at, rather then the (often inflated) RRPs that retailers are fond of quoting.
Good electric toothbrushes feature a brushing timer that helps the user brush for the recommended full two minutes. Most dentists suggest you spend 30 seconds per quarter of the mouth (upper left, upper right, lower left, and lower right). A good brush timer will alert you every 30 seconds so you know when to move on to the next quarter.
The more-sophisticated electric toothbrushes feature different modes for specific mouth areas. Most will have a standard clean setting and a deep-clean mode. Some will have a special setting for brushing the tongue (see below) or sensitive teeth, while others have a range of speed or intensity settings that can be used in a similar way.
They should also boast a pressure sensor to prevent you pushing too hard against your teeth, which can actually damage both the tooth and the gum.
When I first used an electric toothbrush with a pressure sensor I was amazed how wrong (and damaging) my brushing technique was. I was brushing far too hard. Vigorous over-brushing can wear down the enamel on the teeth, and lead to sensitive teeth and receding gums, exposing the sensitive root area.
Many of us neglect to clean our tongue as part of our dental regime, and this is a mistake. As much as half the bacteria in your mouth reside on your tongue. Look for white areas or desquamation (skin peeling) for signs of tongue ill health. Having a healthy tongue could improve your sense of taste and reduce bad breath.
The Oral-B Genius 9000 has a special tongue-cleaning mode, which is gentler than that which you use for brushing your teeth. This will eliminate the need for a separate tongue scraper.
Brush head replacement
Most of us probably don’t change our toothbrush heads often enough. Both the Oral-B and Philips smart brushes claim they know when you need to switch to a new brush head, although we suspect this is calculated merely by time since the previous replacement. If you can’t work this out – or have a scheduling system – then a gentle reminder from the connected app should help you keep your brush heads from wearing out.
Almost all the handles reviewed here are recharged via the usual two-pin charger. We'd love to see more toothbrushes charge via USB like regular devices (and there are a couple in this list) – but currently most manufacturers, despite their apps, still think about bathroom charging points only.
In terms of battery life the clear winner is the Philips Sonicare FlexCare Platinum, which can keep going for up to three weeks between charges (on a twice-a-day two-minute regime). Others typically range between one and two weeks of battery life.
The smart brushes we test here connect with a smartphone app to help you perfect your tooth-brushing routine, collect data on each brushing session, and point out errors in your technique.
In practice we found these apps to promise more than they actually achieved but using the apps for a few weeks really did focus the mind to improving our dental hygiene regime. We expect such apps to get smarter and more accurate but for now you should use them to perfect your routine rather than be a surrogate dental hygienist.
- Reviewed on: 29 November 2019
The Philips Sonicare ProtectiveClean 6100 is a toothbrush built and designed for people who want to spend a decent chunk of money on a top-of-the-line brush, but aren't sold on the new fad for connected features and app support.
So yeah, it won't connect to your phone, but it'll do just about everything else, with three brushing modes and another three intensity settings, which pair with the new BrushSync tech so that the brush will automatically adjust to the optimum setting for any given brush head. It'll also use the same microchip tech to give an accurate assessment of when it's time to swap to a new brush head that's based on your actual usage.
Beyond that, the design is slick and modern, there's a good choice of colours and brush heads available, and it comes with a sturdy travel case. Plus the battery life actually exceeds Philips claim of 14 days - ours ran for over three weeks before it ran out of juice.
- Reviewed on: 28 October 2019
Smart toothbrushes tend to over-promise and under-deliver, and to some extent the same is true with the Genius X. To bill this as AI-driven is really pushing it, especially since it doesn't learn as it goes.
Still, tracking is more accurate than any other smart brush I've tested so far, with feedback at the end that really is useful - all in the sort of premium package you’d expect from a brush at this level. We just wish that syncing the brush to the app was easier, and that there was better support for couples or families sharing the same brush handle.
The average user will probably stop bothering with the smart features eventually anyway - but even if you do, at least you're still getting a top quality electric brush with a range of options and modes.
Read our Oral-B Genius X review.
- Reviewed on: 12 July 2019
We were impressed with the Oral-B Genius 8000 and 9000 for many reasons: excellent plaque cleaning, comfortable brush and handle, brush-head options, travel case, and long battery life.
However, we found the app’s functionality didn’t live up to its promise. The Position Detection is a great idea, but we found it tricky to get right. When used just to advise and monitor mouth-quadrant brushing it was more successful but not as sophisticated as it thinks it is.
But as a premium electric toothbrush both the Genius 8000 and 9000 certainly live up to the hype. Neither is cheap but you can find significant discounts online, and, compared to the cost of a visit to the dentist, using a quality toothbrush is a wise financial as well as healthy decision.
Read our Oral-B Genius 9000/8000 review.
- Reviewed on: 21 March 2018
The Philips Sonicare FlexCare Platinum does its job really well, performing its principal task of removing plaque with ease, and also gently teaching you a better oral hygiene regime: less pressure and less scrubbing. Let the toothbrush do the hard work. And it does that work without needing a charge every few days like some electric toothbrushes. This one goes on for weeks. The Sonicare app is intriguing because it looks great but was a little too confusing for us and we weren’t sure the smart sensors were as smart as they thought they were. With a high RRP you should definitely hunt around for the best price online. Find it at a good price and you’ll be happy with spending on such a premium electric toothbrush.
- Reviewed on: 18 June 2015
The Philips Sonicare DiamondClean is a stylish electric toothbrush with some really handy smart features including automatic timing so you don't need an awkward app, five different cleaning modes and wireless charging. At list price it's not great value for money but you can pick it up much cheaper online. If you want to use a connected app you should consider the Philips Sonicare FlexCare Platinum.
Read our Philips Sonicare DiamondClean review.
- Reviewed on: 5 November 2018
A combination of Japanese technology and German design, the ION-Sei certainly looks good. Of the two colours, go for Lake Blue as it should make a stylish addition to your bathroom.
Fashion is, of course, secondary to actual teeth cleaning and it's here where the tech lies. Unlike other sonic toothbrushes - or any other electric toothbrush we've seen - this one generates a stream of ions and a weak electric charge which actively stops bacteria growing in your mouth. When combined with the great cleaning of the sonic mechanism, it makes your teeth feel exceptionally clean even if that's partly psychological since you can't 'feel' the bacteria in the first place.
You pay a steep price for the tech: not only is the ION-Sei expensive but it doesn't come with a travel case or have some expected features such as pressure detection or a head-replacement indication.
It is rechargeable via USB though, which is handy.
Read our Sanyei ION-Sei review.
- Reviewed on: 2 July 2018
The Oral-B Pro 2 2000 is a simple brush that doesn't offer much for £79.99, but when you can pick one up for just £35, it’s hard to complain too much.
Features are simple: there are only two brushing modes and a pressure sensor, with no Wi-Fi or Bluetooth features, and no app support. However it works well, is comfortable to use, and boasts a two-week battery life - not bad for the price.
A spare brush head or two in the pack would have been welcome, along with a more detailed battery indicator, but these are small complaints about a brush that does a very good job for a very low price.
Read our Oral-B Pro 2 2000 review.
- Reviewed on: 12 July 2019
The Oral-B Pro 6000 and Pro 6500 SmartSeries electric toothbrushes use wireless technology to sync with a neat smartphone app. The most important thing is to brush each section of your mouth without too much pressure and for the right length of time.
The brushes are top quality, but the price is maybe too high for most pockets, whatever the potential savings at the dentist – although you'll find them cheaper via online retailers. You can use the app (or others) with cheaper quality brushes.
We'd also love to see the app get a bit smarter about brushing techniques, as opposed to just duration and frequency of brushing. The 6000 and 6500 are still available but we prefer the better-value Oral-B Genius 9000 smart toothbrush now.
Read our Oral-B Pro 6000 SmartSeries review.
9. Colgate E1
- Reviewed on: 8 January 2020
The Colgate E1 is a rebadge of the Kolibree Ara, which in 2017 was the first toothbrush to use smart technology to feed back to the user and correct their brushing techniques.
Three years on, the E1's app is still first-class, which is presumably why it's being sold in collaboration with Apple, from the Apple store.
The E1 is let down by its toothbrush functionality – which amounts to switching off and on – and the brush design, which is a bit lightweight and basic.
Nonetheless, its price point is attractive and it would make a good toothbrush for a child learning brushing techniques or an adult in trouble with their dentist.
Read our Colgate E1 review.
- Reviewed on: 5 December 2019
The Denvio Sonic Plus is a stylish electric toothbrush that offers a four-week battery life, five different cleaning modes and wireless charging, but you won't find AI, Bluetooth or any of the other smart features utilised by other toothbrushes in our chart. It's not as expensive as other options on the market, but at £18 per pack of replacement brush heads, the cost will add up over time.
Read our Denvio Sonic Plus Toothbrush review.