2 year warranty

No. 1 Dental professional reccomended sonic toothbrush brand worldwide1

100-day money back guarantee



Achieve Your Best Clean
Master your routine with live coaching. The visual mouth map and light ring guide you to cover every zone. Clinically proven 15 x healthier gums and whiter teeth in 1 day. Includes Prestige travel case.
SenseIQ Adaptive Intensity senses your unique brushing style. It automatically adjusts pressure and motion to provide the most protective, personalised and effective clean for teeth and gums.
Get personalised guidance for the confidence of your best clean
Smart Coverage Feedback
Eliminate guesswork with visual coaching. The handle's light ring tracks your progress in real time, glowing yellow for areas needing attention and turning blue once you have achieved a complete clean.
The smart pressure sensor protects your gums in real time. The light ring glows green when pressure is perfect and turns purple to alert you if you press too hard, ensuring a gentle, effective clean.

Perfect Your Clean
Finished brushing? The smart display shows your coverage map instantly. It reveals exactly which spots you missed, so you can go back and re-touch them for a flawless, complete clean.
From personalisation and real-time guidance through to the look, feel, accessories and app, every element of this next-generation toothbrush is designed around you

Did you know that brush heads become less effective after three months? The brush head replacement reminder tracks how often and how hard you brush, and reminds you to replace your brush head once it's time for a new one.
Your new Sonicare DiamondClean comes with a glass charger, premium finishing and an aesthetic design that elevate your brushing experience. For life on the go, the Prestige travel case also doubles as a charger.


The premium design elevates your daily brushing experience, while the slim handle and accessories make it easy to use at home and on the go.
Next-Generation Sonicare Technology automatically adjusts motor power to maintain performance in hard-to-clean areas.
Our most reliable and consistent brushing experience, delivering 62,000 bristle movements per minute for gentle yet effective cleaning in hard-to-reach areas.
4.6
of 5
132
Reviews
NatalieB
24/09/2026
United Kingdom
Part of promotion
Amazing electric toothbrush
What an amazing toothbrush !! I love the features , from whitening , to max clean and polish. I feel like I’ve been to the dentist after using the polish option. It’s gentle on the gums but effective. I love the instant coverage feedback so you don’t miss any part. The toothbrush flashes a different colour until the area is clean which is really helpful. It also notifies you if you are adding too much pressure. The vibration intensity has 3 levels from low to high which makes it suitable for everyone . Comes with a great charging travel case which I thought was great. I sometimes found it a little difficult to charge in the glass.
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
AnnaliseM
21/09/2026
United Kingdom
Part of promotion
It’s a WINNER!
Love this toothbrush! Firstly it feels super premium along with the charger and the carry charging case is brilliant. Battery lasts really long too! I found the guidance such as switching from orange to blue light really helpful and the little screen showing where you have brushed and what’s missing. It also has 3 intensities, and different modes depending on what you want e.g.Sensitive. Overall this is a brilliant toothbrush, it’s definitely on the pricy side which is the only drawback but I can also understand the amount of development that’s gone into 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
AbigailT
13/09/2026
United Kingdom
Part of promotion
For a clean, healthy smile
Philips always get the design of their products right. The diamondclean 9900 is modern and stylish yet chic. It is much lighter than the previous models of sonicare toothbrushes I have owned which makes it easier to use. It has amazing features such as the type of clean you want your teeth to have (clean, whitening or even sensitive), adaptable pressure and a touchscreen monitor. The toothbrush has a light up base which I use to gauge how much pressure I am applying. I have always brushed my teeth using too much pressure and so it is amazing that the toothbrush can help me correct when this is happening. I would however say that these features take a knock on its battery life. My previous toothbrushes would last a long time without needing charge whereas the DiamondClean 9900 needs to be charged weekly. The toothbrush can also be connected to an app but the app does need to be open at the time of using the brush. I did this for around a week and then no longer used it. I would say it is expensive compared to others on the market but I do think oral hygiene is important and so it is worth paying more for knowing my teeth are being cleaned properly.
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
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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. manual toothbrush.
vs. a manual toothbrush.
in Clean mode vs. a manual toothbrush in 6 weeks.
in less than 2 days vs. a manual toothbrush.