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Electric toothbrushes
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Philips Sonicare 4100 Series Sonic electric toothbrush
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HX3689/44
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EU Declaration of conformity - English (US)
UK Declaration of conformity - English (US)
All (13)
Where can I purchase accessories for my Sonicare toothbrush?
How does the brushing guidance work in the Sonicare app?
Can I use my Sonicare charger with other toothbrushes?
How do I register my Sonicare toothbrush?
What are the brushing modes for my Sonicare toothbrush?
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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