2 year warranty
Discontinued
Philips Sonicare DiamondClean Prestige 9900Power Toothbrush with SenseIQ
Available in
#1 Dental Professional recommended sonic toothbrush brand worldwide
with SenseIQ
Exceptional care personalized to you
Limited Edition Pink
SenseIQ senses, adapts, cares
All-in-One brush head
AI-powered Sonicare app
SenseIQ technology senses, adapts and cares
As you brush, SenseIQ technology senses pressure, motion, coverage and more up to 100 times per second. It then adapts the intensity if you push too hard. The intelligence of SenseIQ takes the guesswork out of brushing modes, so you can experience effortless care and better brushing over time.
All-in-One brush head for complete care
Clean without compromise with the A3 Premium All-in-One brush head. Our all-time best has angled bristles to help remove up to 20x more plaque even in hard-to-reach areas*. Triangular tips work to remove up to 100% more stains in less than two days***. And longer bristles clean deep for gums that are up to 15x healthier in just two weeks**. All that without ever switching brush heads. Did you know: brush heads become less effective after 3 months of use? Our BrushSync™ feature can remind you when it's almost time for a replacement.
Personalized guidance from the Philips Sonicare app
The Philips Sonicare app is powered by artificial intelligence and works in perfect harmony with the toothbrush. Use it to brush with real-time guidance about pressure, motion, coverage, duration and frequency. View progress reports by day, week, month and year. Get personalized recommendations and actionable steps for better brushing. Meanwhile, auto-syncing keeps brushing data up-to-date in the app, even when you don’t brush with the app by your side.
Technical Specifications
Reviews
4.2
of 5
483
Reviews
84%
recommend this product
Dogtime
07/07/2026
US
Part of promotion
Verified buyer
Overall, great toothbrush. A cleaning like being at the dentist. The downside is the mess it can make in and around ones sink from the splatter. Be prepared.
Yes, I recommend this product
This review was made for Prestige 9900 HX9990/12 Rechargeable Toothbrush
Date of Use 2026-07-06
Yes, I recommend this product
This review was made for Prestige 9900 HX9990/12 Rechargeable Toothbrush
Date of Use 2026-07-06
Mytyme83
08/06/2026
US
Part of promotion
Verified buyer
Better than the dentist
I chose a 4 Star rating because everytime I use it, I feel like I just let the dentist office. The power of the bristles slung my toothpaste across the room. I love the app. The app shoes you where to brush better at. Where you brush to hard, and more. The app can even automatically order you new toothbrush heads. I recommend this toothbrush to everyone.
Pros
Lightweight, app, great product
Cons
None
Yes, I recommend this product
This review was made for Prestige 9900 HX9990/11 Rechargeable Toothbrush
Date of Use 2026-05-01
Yes, I recommend this product
This review was made for Prestige 9900 HX9990/11 Rechargeable Toothbrush
Date of Use 2026-05-01
Rogersax
27/05/2026
US
Part of promotion
Verified buyer
3 speed vibration, softer than what it used to be Much better than Oral B
This review was made for Prestige 9900 HX9990/12 Rechargeable Toothbrush
Date of Use 2025-07-01
This review was made for Prestige 9900 HX9990/12 Rechargeable Toothbrush
Date of Use 2025-07-01
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vs. a manual toothbrush
vs. a manual toothbrush in 6 weeks
in lab test vs. a manual toothbrush
based on two periods of two-minute brushings per day on standard mode