Brand

Haylou

Model No

Watch 4s

Display

1.43-inch AMOLED

GPS

YES

Waterproof Level/Grade

1ATM

Battery capacity

400 mAh

Details

Display

Screen Size: 1.43-inch AMOLED
Resolution: 466 × 466 pixels
Brightness: Up to 1000 nits
Glass: 2.5D curved, scratch-resistant

Design & Build

Material: Aluminum alloy rotating crown
Weight: ~62g (with strap)
Water Resistance: 1ATM (rain, sweat, hand wash)

Connectivity

Bluetooth: 5.3
Compatibility: Android 9.0+, iOS 13.4+
GPS: 5-system (GPS, BeiDou, GLONASS, Galileo, QZSS)

Battery & Performance

Battery Capacity: 400 mAh
Battery Life:
- Up to 18 days (basic mode)
- Up to 10 days (daily use)
- Up to 26 hours (GPS mode)
Charging: Magnetic charger

Health & Fitness Tracking

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

Smart Features

Bluetooth Calling (answer/reject calls)
Voice Assistant
Notifications (calls, SMS, apps)
Remote Camera Control
Custom Watch Faces (200+ options)
Find My Phone/Watch

Additional Features

Sedentary Reminder
Breathing Exercises
Weather Forecast
Stopwatch, Timer, Alarm
Do Not Disturb Mode
Flashlight

Included Accessories

Replacement strap
Screen protector
Magnetic charger
Quick start guide

Few Details

Watch 4S is a stylish smartwatch designed for everyday users. It provides a vivid 1.43-inch AMOLED display with a sharp 466 × 466 resolution and up to 1000 nits brightness, making it easy to read even in sunlight. The 2.5D curved glass is scratch-resistant, adding durability to its sleek aluminum alloy body and rotating crown. Weighing just around 62g with the strap, it feels light on the wrist and is comfortable for all-day wear. With 1ATM water resistance, it handles rain, sweat, and handwashing without worry. Connectivity is smooth and reliable thanks to Bluetooth 5.3, and it works seamlessly with Android 9.0+ and iOS 13.4+ devices. The built-in GPS supports five systems, and location tracking is fast and accurate. Battery life is impressive, offering up to 18 days in basic mode, 10 days with regular use, and 26 hours in GPS mode, all powered by a 400mAh battery and a magnetic charger for convenience. Health tracking is robust, with 24/7 heart rate monitoring, SpO2 tracking, sleep analysis (deep, light, REM), stress monitoring, and menstrual cycle tracking. With over 120 sports modes, it adapts to any workout. Smart features include Bluetooth calling, voice assistant support, app notifications, remote camera control, and over 200 customizable watch faces. You also get handy extras like sedentary reminders, breathing exercises, weather updates, a stopwatch, timer, alarm, flashlight, and Do Not Disturb mode. Whether you’re tracking your health, staying connected, or just want a reliable smartwatch that looks great, the delivers a balanced mix of performance and style.

Vivid Display Trendsetting Aesthetics

The blends style and clarity with its sleek aluminum alloy body and rotating crown. It features a 1.43-inch AMOLED screen that delivers vibrant visuals at 466 × 466 resolution and up to 1000 nits brightness. Whether you’re outdoors or indoors, the display remains sharp and easy to read. The 2.5D curved glass adds a premium touch while protecting against scratches. This Haylou smartwatch doesn’t just look good—it’s built to last. If you want a watch that turns heads and handles daily wear, this one’s got the looks and the durability to back it up.

18-Day Powerhouse

Forget daily charging—this is built for endurance. With a 400mAh battery, it lasts up to 18 days in basic mode, 10 days with regular use, and 26 hours in GPS mode. Charging is effortless with the magnetic charger—just snap it on and let it juice up. Whether you’re traveling, the Watch 4S won’t leave you hanging. It’s perfect for users who hate battery anxiety and want a smartwatch that keeps going as long as they do.