4G SmartWatch with GPS Tracker Heart rate ECG Temperature Support SIM Card WiFi

OS: Rots
Band:
TDD-LTE: B38/39/40/41
FDD-LTE: B1/3/5/8
GSM: 900/1800
WCDMA:B1/8
RAM: 1GB
Storage capacity: 16 GB Flash
Display: 1.39 inch AMOLED
Resolution: 454*454
GPS: W307 built-in, location
TP: Single point + gesture
Wifi: : W307 built-in, location
Heart rate: Support
Blood pressure: Support
Blood sugar: Support
Blood oxygen: Support
ECG: Support
Temperature: Support