TWS Smart Watch Heart Rate Monitoring blood oxygen detection Watch

Screen: 1.28 inch IPS touch screen 240x240
Bluetooth version: 5.0
Chip: SYD8821
Functions: Heart rate, blood pressure, blood oxygen monitoring
Dial material: zinc alloy + plastic

Bluetooth earphone
TWS chip: Realtech RTL8753BFE
Bluetooth version: 5.1
Battery: 30mAh, 4 hours music time, 1-1.5 hours charging time

High precision true blood oxygen detection.
Imported optical sensor, conbined with heart rate algorithm, can quickly measure heart rate all kinds of data let you know your physical condition anytime, anwhere.
Sleep monitoring, Scientific sleep management, maintain vitality all day, and monitor sleep in real timeAnalyze sleep structure and scientifically evaluate sleep quality.