Accent your style while enhancing your fitness with the vívosmart 4 activity tracker. This slim, smart wristband is loaded with features to track your daily activity and your sleep stages all night. Wrist-based heart rate and Pulse Ox sensors help you learn more about your body, with all-day stress tracking, Body Battery energy monitoring, VO2 max and more. Smart notifications keep you connected when paired with a compatible device, and up to 7 days of battery life will keep you going strong.
Heart Rate Monitor