PG339 1.39 inch Color Screen Smart Watch, Support Heart Rate Blood Pressure Monitoring About Product: 1. Battery capacity: 330mAh 2. Bluetooth version :Dual Mode: BT3.0; BLE5.0 3. Charging method:wireless charging 4. Resolution : 390*390 5. Waterproof rating: IP68 6. System: Android system 4.4 version or above,iOS system 10.0 version or above 7. APP:RDFit 8. Watch support languages:Simplified Chinese, English, Russian, Spanish, German, Italian, French, Portuguese, Polish, Dutch, Greek, Turkish, Romanian, Japanese, Chinese (Traditional), Hebrew, Danish, Serbian , Swedish, Czech, Slovak, Hungarian, Arabic 9. APP support languages:Simplified Chinese, English, Russian, Spanish, German, Italian, French, Portuguese, Polish, Dutch, Greek, Turkish, Romanian, Japanese, Chinese (Traditional), Hebrew, Danish, Serbian , Swedish, Czech, Slovak, Hungarian, Arabic 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. Multi-sport modes:walking, running,ride,basketball,football,badminton,jump rope,swim 5. Breathing training, custom dials,brightness adjustment, information push, remote music, remote Photo, real-time weather, find mobile phone (connected to mobile phone) 6. Bluetooth-compatible music playback, password protection, calculator, calendar, timer, stopwatch, business card, wallet 7. Split screen display, motion track, voice assistant, alarm clock, do not disturb mode, Alipay, WeChat payment collection