Sign up for exclusive offers
Electric toothbrushes
All series
Philips Sonicare 4100 Series Sonic electric toothbrush
Support
Sonic electric toothbrush
HX3689/43
Available in
Go to shop
Register your product
Register within 90 days after purchase and get an extended warranty (conditions may apply).
Localised commercial leaflet - English
UK Declaration of conformity
All (13)
Why is there a gap between my brush head and handle?
How does the pressure sensor feedback work on my Sonicare toothbrush?
Can I use my Sonicare charger with other toothbrushes?
How do I charge my Sonicare toothbrush?
How do I register my Sonicare toothbrush?
My Sonicare toothbrush vibrates too powerfully
My brush head falls off my Sonicare toothbrush
My Sonicare toothbrush is not charging
My Sonicare toothbrush is not vibrating
My Sonicare toothbrush makes a loud noise
Contacting Philips
We're happy to help you
