Product model: HAYLOU RS4 Plus

Dimensions: 45.2*37.2*10.4 (mm)

Strap width: 20mm

Weight (with strap): 57.6g (including strap)

Display: 1.78" AMOLED display

Resolution: 368×448

Bluetooth: Bluetooth Ver: 5.1

Sensors: Heart rate sensor,motion sensor, Sp02 sensor

Battery capacity: 230mAh

Supported devices: Android 6.0 or iOS 11.0 and above

Battery life: About 10 days (Turn on heart rate monitoring for 24 hours)

Water-resistance grade: 1P68

Operating temperature: 0°C ~ 45°C

Sync data platform: Haylou Fun

Workout modes: 105 modes