2 year warranty
Available in
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No. 1 Dental professional reccomended sonic toothbrush brand worldwide1
This product
DiamondClean 9900 Prestige
Rechargeable Toothbrush
£ 599.99
£ 599.99
£ 599.99
Smart coverage feedback
SenseIQ Adaptive Intensity
20 x more plaque removal*
Up to 15 x healthier gums**
Next-Gen Sonicare Technology
Feel our best clean with the A3 All-in-One brush head. Remove 20 x more plaque, enjoy up to 15 x healthier gums in six weeks and see 100% more stain removal in less than two days versus a manual toothbrush. Enjoy a gentle yet effective clean for your teeth and gums with 62,000 bristle movements per minute.
The toothbrush closely follows your progress to help you clean thoroughly. The light ring at the base of the handle glows yellow when a segment of your mouth still needs attention. When it glows blue, the area is clean and you can move on to the next segment. Finished cleaning? A glance at the mouth map on the handle's display will show you any areas that need a touch-up.
SenseIQ Adaptive Intensity helps protect your teeth and gums by automatically adjusting to your brushing style. When Pressure + SenseIQ is activated, the toothbrush senses pressure, motion and coverage up to 100 times a second and reduces the intensity if you brush too hard.
4.6
of 5
82
Reviews
ConnorW
26/08/2026
United Kingdom
Part of promotion
Great toothbrush, sonicare convert.
As a long-time user of other electric toothbrushes, this was my first time trying a Philips Sonicare, and I can honestly say that it is by far the best electric toothbrush I have ever owned. The design of the toothbrush is sleek and elegant, fitting perfectly with the modern aesthetic of newer bathrooms. The wireless charging system, using a cleanable glass cup, is also a game changer. It is incredibly easy to clean the cup, rather than having to clean the charging base itself, as is the case with many other brands. The toothbrush has a wide range of features, including adjustable power settings that can be tailored to sensitive gums and other oral needs. It also provides specific feedback on your brushing technique, including coverage, pressure and scrubbing. Combined with the accompanying app, this makes for a much more informed toothbrushing experience. For the first time, I actually discovered that I was consistently missing certain areas of my mouth while brushing. The app showed me exactly where I was missing, allowing me to adjust my brushing technique and ensure I was covering all areas. It also includes an integrated two-minute timer, helping to ensure that I brush for the recommended amount of time. Battery life is also great, brushing 2 times a day the battery lasts a minimum of 10 days. I can wholeheartedly recommend this toothbrush to anyone. I can also see great benefits for children, as the interactive features could make toothbrushing feel like a more enjoyable and engaging activity. Overall, I would highly recommend the Philips Sonicare as a purchase. It combines excellent design, useful technology and genuinely helpful feedback to make brushing your teeth a much better experience.
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
ArtursS
25/08/2026
United Kingdom
Part of promotion
Superb
I'm using this electrical toothbrush already over a week, and can see absolutely amazing result, very easy to use, ergonomics is awesome, materials are high quality, attachments are great, performance better than I've expected, and it helps with my cleaning issue a lot.
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
EdD9
25/08/2026
United Kingdom
Part of promotion
10x better clean than most other sonic brushes
Smart pressure feedback giving you instant guidance on where to clean more or less with the tip of the brush going yellow or blue. This intuitive brush lets you know where you need to clean more this Phillips diamond clean 9900 is absolutely amazing has eight different modes from maximum care, polishing, White, sensitive, and many more the sense IQ technology means it will either deliver more intense or less intense brushing to the errors that need it most. Super easy to charge inside the glass or inside the great travel case with a long 14 day battery life. Super easy to swipe between the modes on the brush touchscreen. I find this really intuitive and easy to get on with when compared to other sonic toothbrushes I’ve had this definitely gives a deeper clean and longer fresh feeling toothbrush clean. I love the accompanying app, it opens up a brushing detail and breaks down your toothbrushing and if you need to give certain areas more attention or be more sensitive. The brush head automatically tracks the number of clean you have had the head brush for and if you allow access the app links to Amazon to automatically re order a new brush head before you need it so it arrives on time to swap over. No more delays with an over used brush head. All in all this is a very well polished and premium toothbrush product from Phillips Sonicare that delivers excellent results, it’s super easy to get on with intuitive and I personally love it 
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
Based on a study of over 2600 dental professionals (dentists and hygienists) conducted in the United States, Canada, China, France, Germany, Italy, Japan, Korea, the Netherlands, Switzerland, Spain, Sweden and the United Kingdom in 2023-2024.
vs. a manual toothbrush.
in Clean mode vs. a manual toothbrush in 6 weeks.
in less than 2 days vs. a manual toothbrush.