HAYLOU Watch 4S
SUMMIT ACHIEVEMENTS
WORLD ON WRIST
- 1.43" AMOLED HD Display
- Five-Star GPS
- Aluminum alloy rotating crown
- 1ATM Waterproof
TRIPLE-EXCELLENCE FLAGSHIP
HIGH PRECISION POSITIONING
Five-star system
GPS, BeiDou, GLONASS, Galileo, QZSS independent chip
FULL GLOSS TEXTURE
1.43" AMOLED
Smooth Touch Control
2.5D
High-Hardness Curved Glass
ENHANCED WATERPROOF
1 ATM Rating
Resists Water Damage
No Frequent Removal
COMPREHENSIVE ALERTS
Style and protection all in one
HAYLOU Watch 4S has a premium replacement strap to match your daily look. You can change your style in seconds with no extra cost. A high-definition scratch-resistant screen protector is also included to keep the display in perfect condition. Double the perks, right out of the box!
Replacement band and Screen protector
Vivid Display Trendsetting Aesthetics
The classic round AMOLED HD screen features ultra-hard curved glass for smooth touch, delivering vivid colors even under sunlight with flagship-grade aesthetics.
466*466
Ultra-high resolution
* The test data is the value of Liesheng laboratory measurement, the actual use of the setup and operation, the use of the environment, and other factors.
Precision Crown Control
Seiko's aluminum alloy rotatable crown ensures mechanical precision, allowing for smooth menu navigation and parameter adjustment. A dedicated button allows for quick function switching.
Satellite Precision
Zero Drift
HAYLOU Watch 4S uses a dual-band GPS chip supporting five satellite systems. Its tracking is accurate even in narrow streets and wooded areas. Move through the city or nature with clear and reliable positioning.
Wrist-Call Mastery
HAYLOU Watch 4S keeps you connected at all times. With Bluetooth 5.3 Instant Connect, you can make and receive calls with one tap during any activity. Messages sync smoothly across iOS and Android, so you never miss a thing.
2-in-1 Smart Dual-Chip
One-Touch Dial / Answer Calls
Emergency Call
* Emergency Call Note: Requires app setup and Bluetooth connection.
120+ Sport Modes
Al Coaching
HAYLOU Watch 4S helps you stay active with more than 120 sport modes. Track heart rate, calories, and GPS routes using upgraded high-precision sensors and new smart algorithms. The watch's 1ATM waterproof rating protects it from sweat, rain, and daily workouts.
Upgraded High-Precision Sensors
New Self-Developed Algorithm Upgrade
Waterproof Rating Upgrade
* Avoid hot showers and swimming. Liquid damage voids the warranty.
Customizable Dial Ecosystem
Access 200+ online dials-tap to switch from minimalist to cyberpunk styles. Edit components with 8 layout modes (list/honeycomb/etc), overlaying weather/steps/heart rate data. Wake up to a daily visual refresh.
Custom Layout
Always on Display
View Modes
Proactive Health Insights
HAYLOU Watch 4S uses advanced multi-channel biosensors to track key health data over time. It helps office workers and athletes monitor long-term trends and maintain their well-being every day.
Stress scans
Real-time feedback
Heart alerts
Anomaly detection
Women's cycle tracking
Period logging
Sleep reports
Quality analysis
Breathing guide
Anxiety relief
* Monitoring data and results are for reference only and are not intended to be used as a basis for diagnosis or treatment.
Al Assistant On Wrist
HAYLOU Watch 4S supports voice commands for reminders, navigation, and device control. With hands-free access and bilingual voice recognition that works smoothly in real time, you can stay focused during workouts.
Wrist-Flick Camera
HAYLOU Watch 4S lets you take photos remotely with a simple wrist movement. No need to hold your phone or use a selfie stick. The waterproof design helps prevent accidental loss so you can capture the moment anytime.
* Requires Bluetooth connection.
18-Day Powerhouse
HAYLOU Watch 4S runs up to 18 days with a 400 mAh battery and a power-efficient chip. Intelligent alerts let you know when the battery is low so you can charge quickly and avoid interruptions.
10 days
Everyday use mode
* Daily Mode: 24/7 heart/sleep tracking, 100 notifications/day, 150 screen activations.
* Basic Mode: Default face + sleep tracking only. Bluetooth / heart rate off.
* GPS Mode: Full GPS + heart rate tracking (outdoor static use).
* Liesheng Lab measures the above data, and the actual battery life is affected by the usage scenario, product features, and usage habits.
HAYLOU Watch 4S Function Reference
Product Specs
- HAYLOU Watch 4S Smartwatch x1
- Replacement Band x1
- Screen Protector x1
- Magnetic Charger x1
- Quick Start Guide x1
Product Specifications
Product name
HAYLOU Watch 4S
Dimensions
270*47.3*13.2mm
Watch weight
~62g (with strap)
Sensors
Heart rate sensor, Motion sensor, Blood oxygen sensor
Battery life
Typical usage up to 10 days
Data sync platform
Haylou Fun
* The above parameters are measured manually, and a 3-5mm error is normal.
Notes
* This product is not designed as a medical device and is not intended to diagnose, treat, cure, or prevent any disease. All data and measurements are for personal reference only and are not to be used as a basis for diagnosis.
* The content and functions shown on this page cannot be guaranteed to provide permanent service and may be adjusted due to changes in copyright, business, or technical conditions. If changes are not separately notified, please refer to the actual content and functions of the product.
* Some device functions (including, but not limited to, incoming call alert, notification alert, etc.) require the app to keep running in the background to take effect. Please refer to the tips and guidance on the watch or in the app for details.
* Battery life test data comes from Liesheng Lab. In actual use, battery life may vary depending on use, settings, signal strength, and many other factors. The actual use time may be slightly different from the nominal value. In a low-temperature environment, battery performance will be reduced, and battery life will be shortened.
* Please use the official charging cable. Can not use a third-party charging cable, so as not to affect the normal use of the product.
* All-day monitoring needs to be manually turned on in the app. The app supports heart rate, blood oxygen, sleep, and pressure monitoring under the conditions of the measuring device.
