Healthy lifestyles start here. Sign up for updates
2 year warranty
Expert tips and inspiration
Electric toothbrushes
All series
Philips Sonicare DiamondClean Smart 9300 Sonic electric toothbrush with app
Support
HX9901/59
HX992B
Available in
Go to shop
Log in or create an account
You instantly have access to manuals, tailored support and more. Plus it’s quick and easy
User Manual
Data Act Document - English
All (25)
How does the brushing guidance work in the Dental+ app?
In which countries is the Dental+ app available?
Which devices are compatible with the Dental+ app?
How does the brushing guidance work in the Sonicare app?
Do I need an Alexa device to reorder replacement brush heads for 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
My Sonicare toothbrush vibrates too powerfully
My Sonicare toothbrush is not charging
My Sonicare toothbrush is not vibrating
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