Ultra9 2.1 inch Color Screen Smart Watch,Support Heart Rate Monitoring Blood Pressure Monitoring About Product 1. Battery capacity: 350mAh 2. Bluetooth version :BLE3.0+5.0 3. Charging method:Wireless charging 4. Waterproof rating: IP68 waterproof 5. Resolution :240x294 6. Platform:RTL8762D; Basic frequency:90MHz; RAM:192KB; ROM:64MB 7. Quality Standard:GB4943.1-2011;GBT22450.1-2008 8. Watch support languages:English (default), Spanish, Portuguese, Arabic, Greek, Hungarian, Polish, Thai, Japanese, Korean, Indonesian, French, German, Czech, Dutch, Turkish, Italian, Russian, Farsi, Vietnamese, Ukrainian, Hebrew Function 1. Bluetooth call,heart rate monitoring,blood pressure monitoring,blood oxygen monitoring 2. Step,distance,calorie 3. Sleep monitoring (sleep duration, sleep quality) 4. GPS movement, game download, background management 5. APP skin function, APP movement track video, healthy family sharing positioning health information,SOS alert, album, video custom dial push 6. Voice assistant, NFC access control, independent ringtone, independent clock, Always ON screen, bedside lamp, female physiology 7. Body temperature, bluetooth camera, Bluetooth music, friends, payment code, calculator, phonebook, weather, stopwatch, timer, alarm , Pinlock, flashlight, massage