Product type: Smart watch (Bluetooth call+ECG)Features: Bluetooth call, ECG, blood glucose, blood oxygen, blood pressure, heart rate, body temperature, NFC, play musicShell material: PC+ABSStrap: Silicon strap 22MMCompatible system: Android 4.4 and aboveiOS 8.2 and aboveProcessor (MCU main control): JL AC7013A CPU160MHZ 640kbPlug-in UI FLASH: 64Mb Analog front-end chip: VP556ERBody temperature sensor: NTC thermalAccelerometer: Rohm KXT3-1057Blood oxygen sensor : VP556ER (Dual PD)Display: High resolution screen 1.81 inches 240*284DPIBattery capacity: Pure cobalt lithium battery 270 mAh, 7-10 days of use, 30 days of standby (measured)Touch: CST816D full screen touchVibration motor: Silent vibrationBluetooth: 3.0+5.1BLE (dual mode)Physical buttons: 1PCSCharging interface: Magnetic charging with short circuit protectionCharging time: 2-3 hoursMain function: ECG measurement, Automatic Infrared Oximetry, Bluetooth call Bluetooth music, Games, Voice assistant, Blood pressure monitoring, MET, Weather, Sleep monitoring, Blood glucose, heart rate monitor HRV, 10 sports modes, Ovulation period reminder for women, Temperature measurement, Step counting, calorie counting, distance measurement, Alarm clock, Information reminder, Rotate the wrist to turn on the screen, Remote photo, Reminder to pick up Reject, NFC, Mobile music control, Sedentary reminder, Stopwatch function, WeChat motion synchronization, Multi-dial switching, Heart rate alarm WaterproofIP67Language support: Watch language support: (Chinese, English, traditional, Russian, German, French, Japanese,) Default EnglishMessage push: Chinese, Japanese, Korean, Latin, Cyrillic; Latin includes: (English, French, Spanish, Portuguese, German, Dutch, Vietnamese, Northern European, Central European, Southern European Italian, Southeast Asian, African);Cyrillic includes: (Russian, Eastern Europe, Asia), covering 150 countriesAPP: Chinese, Traditional Chinese, English, Japanese, Korean, German, Russian, Spanish, Italian, French, Vietnamese, Portuguese, Turkish, Czech, Polish, Persian 16 languagesPacking list:1 X Watch with packing box1 X charging cable, 1 X instruction manual, 1 X QC label