2 year warranty
HX9902/74
HX992W
Complete care for your oral health
Enjoy complete care with the Philips Sonicare DiamondClean Smart Electric Toothbrush - for up to 15x healthier gums** and whiter teeth*. Its smart, app-connected technology delivers a personalized experience every time you brush.

Dental Professional recommended sonic toothbrush brand worldwide
20x more plaque removal*
Up to 15x healthier gums**
Visual pressure sensor
4 modes & 3 intensities
Everyone cleans differently, so we designed this brush head with multi-angle bristles to keep plaque removal on course no matter your technique. Our All-in-One A3 brush head delivers our best cleaning and removes up to 20x more plaque, 15x healthier gums in six weeks, and up to 100% more stain removal in less than two days versus a manual toothbrush.
Philips Sonicare toothbrushes clean gently yet effectively and care for your teeth and gums with 62,000 bristle movements per minute. Sonicare Fluid Action supports the bristles to clean by driving fluid deep between teeth and along the gumline.
This Sonicare electric toothbrush has a light ring at its base that gently lets you know if you're overdoing the pressure. Simply ease off when it lights up to help your gums stay protected.
4.7
of 5
101
Reviews
97%
recommend this product
Whities
15/08/2026
Canada
Verified buyer
Diamond Clean Smart 9350- Ideal
We had this same toothbrush for the past 3 years and liked it so much, we bought it once again. The All in One brush heads are pretty amazing.
This review was made for DiamondClean Smart 9350 HX9902/77 Rechargeable Toothbrush
Date of Use 2026-07-15
This review was made for DiamondClean Smart 9350 HX9902/77 Rechargeable Toothbrush
Date of Use 2026-07-15
Hollywood
01/09/2026
US
Part of promotion
Philips Sonicare W DiamondClean Smart 9350 Brush
I have been using my Philips Sonicare DiamondClean Smart 9350 Rechargeable Electric Toothbrush since receiving it for free through the Stellar Product Testing Panel! And I love it! My teeth literally feel cleaner everyday and I like the steadyness of the brush and how easy it is to control, the toothbrush is quiet while turned on too which I love and all the different settings of clean your wanting to achieve is definitely a bonus too and I use them daily! The design of this beautiful toothbrush was executed perfectly in my opinion, even right down to charging it with the sleek glass cup it comes with and the charging power lasts long too inbetween uses! And the different shapes to reach the more difficult spots in the mouth from the brush heads is very effective and I'm noticing a difference in the appearance and feel of my teeth. The bristles are soft but good quality! I would definitely recommend the Philips Sonicare DiamondClean Smart 9350 Rechargeable Electric Toothbrush if you care about your oral health! Great electric toothbrush.
Yes, I recommend this product
This review was made for DiamondClean Smart 9350 HX9902/76 Rechargeable Toothbrush
Yes, I recommend this product
This review was made for DiamondClean Smart 9350 HX9902/76 Rechargeable Toothbrush
Annm00re
01/09/2026
US
Part of promotion
Dentist quality clean at home
I received this electric toothbrush from the Stellar Product Testing Panel. This is not a toothbrush I’d want to sleep on. The first thing that stands out to me is the sleek look, stylish, cute and minimalistic. The glass charger makes it look clean and fresh (super easy to wash and keep looking clean too). After just using the toothbrush one time my teeth instantly felt cleaner than a regular toothbrush. I love the different modes and intensity that I can pick from based on my own preference and how my mouth feels that day. Being able to customize my toothbrush settings on daily basis helps me so much, especially since some days of the month my mouth is definitely more sore. The bristles are gentle and soft on my gums and I don’t have to worry about irritating my gums. The Gum health and whitening settings are my most used, I rotate between the 2 settings! I’m not a fan of the dentist and don’t go regularly, but my dentist noticed how great my teeth and gums are- I have zero cavities! This toothbrush is absolutely worth the investment even at full price for a great oral health, it’s definitely part of my morning and night routine that I can’t go without.
Yes, I recommend this product
This review was made for DiamondClean Smart 9350 HX9902/76 Rechargeable Toothbrush
Yes, I recommend this product
This review was made for DiamondClean Smart 9350 HX9902/76 Rechargeable Toothbrush
vs. a manual toothbrush.
in 6 weeks vs. a manual toothbrush.
in less than 2 days vs. a manual toothbrush.