Item NameSmart Fitness Activity TrackerModel No.UE-31SWC1FunctionTime,date, battery display, Step pedometer, Calorie, Distance, Auto Sleep monitor, Alarm alert, Call alert (caller name / caller ID), anti-lost, sedentary alert; camera remote shoot, wrist sense, find phone, sms alert, sns alert inclide twitter, facebook, whatsapp alert, etc.App OS+APP NameIOS 8.0 & above / Android 4.4 & aboveWaterproofIP67 Life waterproof, not for swimming or divingHost MaterialPlatingStrap MaterialTPUBattery85 mAhScreen0.66'' OLED screen , Vibration MotorSensorG-Sensor 3axisColorBlue, Black, Purple, GreenStandby Time7-10 daysCharging Time1.5-2hoursSize46.5x20x11.9mmWeight20