An attendee holds an Procter & Gamble Co. Oral-B SmartSeries electric toothbrush alongside an Apple Inc. iPhone during the 2015 Consumer Electronics Show (CES) in Las Vegas, Nevada, U.S., on Tuesday, Jan. 6, 2015.
Patrick T. Fallon—Bloomberg/Getty Images
By Lucy Bayly / NBC News
February 23, 2016

There’s now a legitimate reason to bring your phone into the bathroom: to help you correctly brush your teeth. Oral-B just introduced a new “smart” toothbrush named the Genius, which works in tandem with a special app to record metrics such as interdental cleaning, pressure applied, brushing duration, and tongue cleanliness.

Oral-B unveiled the high-tech tooth tool at Mobile World Congress in Barcelona on Monday, explaining that the Genius’ unique system that involves location tracking and acceleration sensors will “take digital guidance to the next level by bringing awareness to what’s actually happening each time users brush, and giving them…

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