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Philips Sonicare 4100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, White, Model HX3681/23
4.2 ★ (19,800 reviews)
Price shown at time of last analysis. Verify current price on Amazon.
Mixed — 4/10 ⓘ
AgreGtr Analysis
Customers have mixed experiences with this electric toothbrush, with some praising its cleaning performance and reasonable price while others report significant quality and reliability issues. Durability is a recurring concern, with reports of mold growth, rubber degradation, and units stopping charging or working entirely within months. Overall satisfaction is below average due to inconsistent build quality and limited warranty support.
Pros & Cons
- Cleans teeth effectively and gets the job done
- Reasonably priced and considered a budget-friendly option
- Some units have lasted two or more years with regular use
- Compatible toothbrush heads work well when used correctly
- Mold forms between the main body and toothbrush head
- Rubber on the handle degrades within a year of use
- Unit stops charging and battery indicator just blinks after a few months
- Reliability is inconsistent — some units stop working within 3 months
- Customer support and warranty process is reportedly difficult to navigate
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