Healthy lifestyles start here. Sign up and get exclusive offers
2 year warranty
30-day return
Electric toothbrushes
All series
Philips Sonicare DiamondClean 9000 Rechargeable toothbrush
Support
HX9911/74
HX991A
Go to shop
Register your product
Register within 90 days after purchase and get an extended warranty (conditions may apply).
All (18)
How does the brushing guidance work in the Sonicare app?
How do I enable or disable the pressure sensor on my Sonicare?
Can I sync the Sonicare app with the Apple Health app?
How do I register my Sonicare toothbrush?
What are the brushing modes for my Sonicare toothbrush?
I cannot connect my toothbrush to the Sonicare app
My Sonicare toothbrush is not charging
My Sonicare toothbrush is vibrating less powerfully
My Sonicare toothbrush vibrates too powerfully
My Sonicare toothbrush turns off by itself
Check the terms of your warranty and start a product exchange or repair
Warranty
Our product warranty policies
Contacting Philips
We're happy to help you