Product Description

Product name Haylou RS4

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 10 days (24 hours heart rate monitoring)

System requirement Android 6.0 and above, iOS 11.0 and above. Supported functions will vary with different watches, mobile phones, and countries.

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