Retina HD display | Heart rate monitoring Sleep monitoring | 20 days battery life
Product name Haylou RT2
Main body size 45.7 * 45.7 * 12.1 mm
Strap width 22 mm
Watch weight (with strap) 55 g
Display screen 1.32″ TFT display
Resolution 360x360px
Bluetooth connection Bluetooth V5.0
Sensor Heart rate sensor, motion sensor, blood oxygen sensor
Battery capacity 300 mAh
System requirement Android 6.0 and above, iOS 11.0 and above. Supported functions will vary with different watches, mobile phones, and countries.
Waterproof grade IP68
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