Haylou Watch 4S Smart Watch

• 1.43" AMOLED HD Display
• Five-Star GPS
• Aluminum alloy rotating crown
• 1ATM Waterproof

Physical Specification

62g (with strap)

 1ATM (rain, sweat, hand wash)

Display

1.43-inch

466 × 466 pixels

AMOLED

System Hardware

Heart Rate Monitoring: 24/7
Blood Oxygen (SpO2) Monitoring
Sleep Tracking (deep, light, REM)
Stress Monitoring
Menstrual Cycle Tracking
120+ Sports Modes

Connectivity

 5-system (GPS, BeiDou, GLONASS, Galileo, QZSS)

Yes

Bluetooth 5.3

Operating System

Android 9.0+, iOS 13.4+

Battery

400mAh