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Electric toothbrushes
All series
Philips Sonicare 4100 Series Sonic electric toothbrush
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HX3689/44
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Register within 90 days after purchase and get an extended warranty (conditions may apply).
UK Declaration of conformity - English (US)
All (13)
What are the brushing modes for my Sonicare toothbrush?
Can I use my Sonicare charger with other toothbrushes?
How do I register my Sonicare toothbrush?
Where can I purchase accessories for my Sonicare toothbrush?
How does the brushing guidance work in the Sonicare app?
My Sonicare toothbrush is vibrating less powerfully
My Sonicare toothbrush is not vibrating
My Sonicare toothbrush turns off by itself
My brush head falls off my Sonicare toothbrush
My Sonicare toothbrush is not charging
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