Oral-B’s iO smart toothbrush is a big upgrade in just about every way

It can be easy to mock the very concept of a ‘smart toothbrush’ – what other device in our lives do we use daily that seems least in need of a connected upgrade? But Oral-B has been upgrading its powered toothbrush lineup with Bluetooth and app-based intelligence for quite a while now, and its latest […]

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