V16 1.46 inch Color Screen Smart Watch, Support Bluetooth Call Heart Rate Monitoring About Product 1. CPU:BT8959 2. Bluetooth Version:BLE 5.2 3. Battery capacity:210mAh 4. Stanby Time:About 30 days 5. Working Time:About 7 days 6. Waterproof Level:IP67 7. Charging port:Wireless charger 8. APP:WearFit pro 9. APP supports languages:Simplified Chinese, Traditional Chinese, English, French, German, Japanese, Spanish, Italian, Korean, Russian, Thai, Czech,Portuguese, Indonesian, Arabic, Turkish, Greek, Estonian, Bulgarian, Latvian,Lithuanian, Romanian, Serbian, Slovak (24 courses) 10.Watch supports languages:Chinese, English, Arabic, French, German, Spanish, Portuguese, Russian, Thai, Polish, Italian, Japanese, Traditional, Czech, Turkish, Greek, Latin, Romanian, Vietnamese, Danish 11. System requirements:android6.0+ ios10.0+ Main Function 1. Heart rate monitoring,blood pressure monitoring,blood oxygen monitoring 2. Step,distance,calorie 3. Sleep monitoring (sleep duration, sleep quality) 4. NFC,automaticmanual time adjustment,voice assistant,location sharing,offline alipay 5. Smart split screen display,password lock screen,weather,Mett,play music 6. Breath training,multiple exercise modes,raise your hand to brighten the screen,fatigue analysis 7. Message notification,calculator,sedentary reminder,WeChat campaign,alarm reminder,stopwatch,find a bracelet