Haylou 4S Amoled Display BT Calling Smart Watch

Category

Specification

Brand & Model

Haylou 4S

Release Date

2025

Display

1.43" AMOLED, 466 × 466 px (~331 PPI), Always-On Display (AOD)

Case / Build

Aluminum alloy rotating crown; 1ATM water resistance

Size & Weight

Approximately 62g (with strap)

Strap / Buttons

Silicone strap; 2 physical buttons + touchscreen

Battery

400 mAh; Typical use: up to 10 days; Charging time: ~2 hours (Magnetic charging)

Sensors & Health

Heart rate monitor; SpO₂; Sleep monitoring; Stress monitoring; Menstrual cycle tracking

GPS / Navigation

Built-in GPS; 5-system support (GPS, BeiDou, GLONASS, Galileo, QZSS)

Connectivity

Bluetooth 5.3; Bluetooth calling with microphone; Voice assistant support

Sports & Fitness

120+ sports modes; Activity tracking

Display Features

Always-On Display (AOD); Customizable watch faces

Compatibility

Haylou Fun app; Android 9.0+ and iOS 13.4+

Colors Available

Black

Other Features

1ATM water resistance; Magnetic charging; Multi-language support (including Bengali)