Stefan Mileschin

The Oral-B iO Series 7 smart electric toothbrush is down to $149 at Amazon after a $71 discount. That matches the best price we've seen and returns it to the low it hit for the shopping holidays last year. The deal comes as part of a larger sale in which Oral-B toothbrushes are up to 55 percent off. We named the iO Series 7 the top pick in our guide to smart toothbrushes because it hits a good balance between features and affordability (particularly if you can catch it on sale like right now).

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