Sign up for exclusive offers
Electric toothbrushes
All series
Philips Sonicare DiamondClean Sonic electric toothbrush
Discontinued
Support
HX9351/52
Go to shop
Register your product
Register within 90 days after purchase and get an extended warranty (conditions may apply).
Eco passport - English (US)
User manual
All (15)
Can I use my Sonicare charger with other toothbrushes?
How do I charge my Sonicare toothbrush?
How do I register my Sonicare toothbrush?
Where can I purchase accessories for my Sonicare toothbrush?
Why is there a gap between my brush head and handle?
Philips SonicareCharging glass
W2c Optimal White compactCompact sonic toothbrush heads
W2 Optimal WhiteStandard sonic toothbrush heads
C3 Premium Plaque DefenceStandard sonic toothbrush heads
Philips SonicareCharging station
Philips SonicareUSB-A power adapter
Philips SonicareCharging travel case
Philips SonicareUSB-A charging cable
Philips SonicareCharging stand
My Sonicare toothbrush is not vibrating
My brush head is difficult to attach or remove.
My Sonicare toothbrush turns off by itself
My Sonicare toothbrush is vibrating less powerfully
My brush head falls off my Sonicare toothbrush
Contacting Philips
We're happy to help you