Healthy lifestyles start here. Sign up for updates
2 year warranty
Expert tips and inspiration
Electric toothbrushes
All series
DiamondClean 9000 Sonic electric toothbrush with app
Support
HX9911/76
HX991W
Available in
Go to shop
Register your product
Register within 90 days after purchase and get an extended warranty (conditions may apply).
Data Act Document - English
All (19)
How does the brushing guidance work in the Sonicare app?
Do I need an Alexa device to reorder replacement brush heads for my Sonicare?
How does the pressure sensor feedback work on my Sonicare toothbrush?
Can I use my Philips Sonicare Toothbrush in the shower?
How do I enable or disable the pressure sensor on my Sonicare?
My brush head is difficult to attach or remove.
My Sonicare toothbrush turns off by itself
My Sonicare toothbrush is vibrating less powerfully
I cannot connect my toothbrush to the Sonicare app
My Sonicare toothbrush vibrates too powerfully
Check the terms of your warranty and start a product exchange or repair
Start a product exchange
Apply for a warranty replacement product from Philips
Warranty
Our product warranty policies
Contacting Philips
We're happy to help you