Battery can last for 2-3 days
1. Product Name: Smart watch ZT9 Pro Max
2. Screen Size: 2.2 inch AMOLED full touch screen
3. APP: Wearfit Pro
4. Waterproof: IP67
5. System Compatible: Android5.0 and above, IOS10.0 and above
6. Charge Way: Wireless charge
7. Functions: Bluetooth call, compass, heart rate/blood pressure/sleep monitor, NFC, step, distance, calories, distance, multi sport modes, voice assistant, message reminder, stopwatch, calculator, Short video remote control, blood sugar, and more funciotns