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But with a smart toothbrush, you can connect to a compatible app that lets you know your strengths and shortcomings when it comes to oral hygiene. As of Feb. 11, the hum by Colgate Smart Battery ...

The Colgate Hum app is a big part of using the toothbrush. After all, it’s a smart toothbrush. So being able to see data around how and when you brush makes it more than just an electric toothbrush.