Design:Bar Movement Type:Electronic Band Material:TPU Case Material:ABS Function:24 hour instruction, Alarm Clock, Countdown, Call Reminder, Fitness Tracker, Heart Rate Tracker, MONTH, Message Reminder, Push Message, Sleep Tracker, WORLD TIME, chronograph, THERMOMETER Resolution:80*160 Touch mothed:Single point Bluetooth version:4.0 Special Function:Body temperature measurement Battery:90mAh Charging Method:Built-in USB Waterproof:IP68 UI Languages:English, Chinese Compatible:Android 4.4/ios8 or above