Smart Function: Fitness tracker,24 hour continuous heart rate monitor, blood oxygen and sleep monitor, calorie counter, step counter, bluetooth phone call reminder, caller’s name display, caller ID display, reject answer the phone, call & SMS message notification, health tracker, sedentary reminder, wechat sports, remote camera, alarm, countdown, stopwatch. All-Day Activity Tracking: Automatically tracks your steps, distance and calories burned. Supports 11 activity modes: swimming, outdoor(cycle, run, walk),Indoor(run, walk),stationary bike, elliptical, hiking, stair stepper, rowing machine, etc. IP68 Swimproof: IP68 waterproof index of the tracker helps you care free while surfing, running in the rain, swim or shower in not-hot water. Longer Battery Life: Built in USB charge(no cable needed).Full charge requires only about 1 hour and the working time can be about 5-7 days. Easy Connect: APP ‘H Band’ supports android 4.4/iOS 8.0 or above phones(not for table),please connect via the app not bluetooth.