Model: K37 version: BLE 5.0Main control chip: Dialog 14695GPS chip: BCM47755 (ceramic antenna)Memory: Flash 128MBScreen resolution: 360*360Battery capacity: 480mAhStandby time: about 40 daysWorking time: about 5-10 daysMotor: built-in, vibration reminderNet weight: 57.8gAPP: InfoWearMachine size: 46*46*13mmBox size: 170*76*35mmSystem requirements: Android 4.4 and above, IOS 8.0 and aboveSpecifications:1.32 inch IPS full circle full viewing angleEasy to replace strap, standard 22mmA variety of dial push, custom dial music, weather displayWomen's menstrual cycle reminder480mAh large battery, long standby time, the screen display is very bright outdoorsTime display, step counting, calories, distance, heart rate, blood oxygen, sleep time, switch display, stopwatch, multi-sport mode, etc.Multi-language (Japanese, English, German, Russian, Spanish, Italian, Polish, Portuguese, Hindi), default EnglishSync data to APK/APP, APP: InfoWear (scan QR code to download "InfoWear")Package Included:1*Smart Watch1*Charging cable1*Instruction1*Packing box