HAYLOU RS4 Plus AMOLED Display Smartwatch Sports Modes good Battery Life

Haylou Model: HAYLOU RS4 Plus
System: None
Function: Passometer
RAM: 256MB
SIM Card Available: No
Type: On Wrist
Language: English, Russian, Spanish, Portuguese, Italian, German, Japanese
GPS: No
Multiple Dials: Yes
Battery Capacity: 220-300mah
Mechanism: Yes
Compatibility: All Compatible
ROM: 256MB
Rear Camera: None
Waterproof Grade: Life Waterproof
Band Material: Silica gel
Battery Detachable: No
Screen Shape: Square
Resolution: 368*448
Display Size: 1.78inch
Application Age Group: Adult
Style: SPORT
APP Download Available: Yes
Case Material: Precious Metals
Band Detachable: Yes
Display: 1.78inch AMOLED display
Special strap: Magnetic strap
Bluetooth: Bluetooth 5.1
Workout modes: 105 modes
Water-resistance grade: IP68
Battery life: 10 days Daily use mode: 28 days Basic use mode
Application: Haylou Fun
Function: 24-hour heart rate monitoring
SpO2 tracking
Smart sleep monitoring