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.