What do the numbers behind the model names (Philips Sonicare ProtectiveClean 5100, 4500, 4300 and 6100) mean? I can't even find a specific reference to this on philips.ch. It's not about the sound frequency - at least there is no reference to this.
ma_rehmann
2 years ago
I can't answer that question, I assume it's the model numbers. It has nothing to do with the speed.

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2 years ago

I can't answer that question, I assume it's the model numbers. It has nothing to do with the speed.

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I can't answer that question, I assume it's the model numbers. It has nothing to do with the speed.

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