Sign up for exclusive offers
Electric toothbrushes
All series
Philips Sonicare FlexCare Platinum Sonic electric toothbrush
Discontinued
Support
HX9111/21
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 (18)
Where can I purchase accessories for my Sonicare toothbrush?
Why is there a gap between my brush head and handle?
How does the brushing guidance work in the Sonicare app?
How long should my Sonicare toothbrush battery last?
What do the battery status lights indicate on my Sonicare toothbrush?
Philips SonicareUV brush head sanitiser
Philips SonicarePlastic travel case
Philips SonicareCharging base
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
I cannot connect my toothbrush to the Sonicare app
Check the terms of your warranty and start a product exchange or repair
Service and exchange
Get your broken product serviced or replaced
Warranty
Our product warranty policies
Contacting Philips
We're happy to help you