LAS VEGAS, NV - JANUARY 04: InBody displays the first wearable fitness tracker and body composition analyzer during a press event at the Mandalay Bay Convention Center for the 2015 International CES on January 4, 2015 in Las Vegas, Nevada. In addition to sleep tracking and heart rate measurements, the unit measures body fat percentage, total muscle mass, body fat mass and basal metabolic rate (BMR). CES, the world's largest annual consumer technology trade show, runs from January 6-9 and is expected to feature 3,600 exhibitors showing off their latest products and services to about 150,000 attendees. (Photo by Ethan Miller/Getty Images)
