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Haylou RS4

12 workout modes
1.78″ AMOLED HD display
10 days battery life
IP68 waterproof
SpO2 tracking
Heart rate monitoring
Sleep monitoring

Categories: Smartwatches, Haylou

Description
Brand

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 12 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.