Featuring a sleek design and a hidden display that’s only on when you need it, Vivosmart 3 tracks steps, floors climbed, sleep and so much more. It tracks your fitness and wellness with all-day HR and Stress monitoring, VO2 Max and Fitness Age. With Move IQ and a new Strength Training activity which automatically counts your weight training reps, working out will be convenient and effective. This is a manufacturer refurbished unit.