The Ear-O-Smart invention slips a fitness tracker into an earring back, offering an inconspicuous and more effective way to capture biodata. Ear-O-Smart fits on the back of any existing earring, where it makes gentle and constant contact with the skin to measure heart rate, activity level and calories burned. In fact, Ear-O-Smart was designed specifically with women in mind, who often only wear their fitness trackers while working out.
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