Haylou RS4 SmartWatch

Bluetooth connection

Bluetooth V5.1

Main body size

45.2*37.2*11.1mm

Sensors

Heart rate sensor, motion sensor, blood oxygen sensor

Strap width

20mm

Watch weight

48.6g (with strap)

Display

1.78″ AMOLED display

Resolution

368×448

Battery capacity

230mAh

Battery life

About 12 days (24 hours heart rate monitoring)