Key Features:Standard function (step, distance, calories), Sleep monitoring (sleep time, sleep quality). Heart rate detection,Time,step, distance and calorie display on the screen,Incoming remind, Message push.Anti-lost remind (phones beyond the scope will remind), Alarm clock remind,moving target setting.Moving information sharing, SUOTA function, through the APK/APP.Sensor:Gravity sensor, Heart rate module: HRS3300 with Screen type:Screen display band (0.96 inch TFT).Manufacturer Specifications  General Type: smart bracelet main chip:Mcuble ST17H25sensor:Gravity sensorHeart rate module: HRS3300Screen type:Screen display band (0.96 inch TFT)charging method:USB chargingwaterproof level:IPX7Product software parametersSystem Requirements:Android 4.4 and above, IOS 8.0 and above, bluetooth 4.0 supportBluetooth version:BLE 4.0Material: TPUFunction:Heart rate detectionTime,step, distance and calorie display on the screenIncoming remind, Message pushAnti-lost remind (phones beyond the scope