2 year warranty
Back to Routine
20% off with voucher* B2R20
Available in
Subscription available

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.
4.5
of 5
56
Reviews
MustafaA
21/08/2026
United Kingdom
Part of promotion
Premium quality amazing results
When I first see the price I was like no way a toothbrush should ever cost that much. But when you unbox and feel the premium quality in your hand you can feel why. The navigation like in the video I show here lets you whizz through with ease and get the correct setting applied. The battery is amazing and been using last few days and still holding well. Its portable case makes it ideal for trips. The setup was a breeze with fantastic software which you can use to monitor on the app how well your brushing and the coolest part is when the light changes colour to how much pressure you should put and not put. It’s like a personal teacher. Maintenance is simple and effortless and brush head is durable. Charging is easy crates in the cup or by lead. This is premium worth every penny you can see how much tech is in this and now I can never go back to an average toothbrush the difference in how clean my teeth look is night and day.
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
HerbieB
19/08/2026
United Kingdom
Part of promotion
Excellent tooth brush
I already had the last generation version of this same toothbrush. This is an improvement in every way. Very effective, light and looks great but also very costly.
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
This review was made for DiamondClean 9900 Prestige HX9813/92 Rechargeable Toothbrush
ClaireC
18/08/2026
United Kingdom
Part of promotion
Amazing!
This is amazing! Charges via the carry box or by the standing up in the glass. Amazing for on the go if your working away. Has teeth feeling amazing!
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.