“It looks like there are two versions of 4100, the old one comes with AC plug and removes 7x more plaque, comparing to the new one, which has only USB charger without AC plug and it removes 5x more plaque. Where does the difference come from?”

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• The amount is from the speed of the vibrations. Both do a great job.

  Answered by Swimmer 3 years ago

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• Hello! Yes, this new new Philips Sonicare 4100 Power Toothbrush is your transition from the manual toothbrush. They differ to the cleaning performance. Also, it comes with 2 vibration intensity settings to protect sensitive gums from overbrushing.

  Answered by Answered by Philips 4 years ago

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