Buy now
Silver HAYLOU Watch 4 with green ribbon

HAYLOU Watch 4

See better
work Better
1.93" HD Display
|
320*380 Resolution
GPS Positioning
|
Bluetooth Calling
Bluetooth 5.3 Chip
|
Sync with Strava
Black HAYLOU Watch 4 with yellow ribbon
Black HAYLOU Watch 4 on yellow-green backgroundBlack HAYLOU Watch 4 on yellow-green background

Top 10 reasons to recommend

Precise GPS Positioning
Empower outdoor adventure
Haylou Fun iconStrava icon
Haylou Watch 4 next to smartphone
1.93"
HD Display
Clear view & ultra-thin bezel
HAYLOU Watch 4 Big HD Display
Exquisite Rotating Crown
Clear view & ultra-thin bezel
HAYLOU Watch 4 Rotating crown
Bluetooth Calling
Answer / make calls
SOS emergency call
HAYLOU Watch 4 Bluetooth calling screen
100+
Watch Faces
Match your unique style
HAYLOU Watch 4 Many watch faces
Health Monitoring *
Constant health guardian
120+ Sports Modes
Sync with Strava
Professionally record data
More Features
8
View Modes
15-day
Battery Life *

Precise GPS Positioning

With support for 5-star satellite systems (BDS, GPS, Galileo, GLONASS, QZSS), HAYLOU Watch 4 provides faster and more accurate location tracking. Whether jogging through the mountains or navigating busy city streets, you can rely on precise performance every step of the way.
HAYLOU Watch 4 Jogging screen
Running woman uses HAYLOU Watch 4

120+ Workout Modes
Sync with Strava

HAYLOU Watch 4's professional sports algorithms support popular activities like hiking, cycling, and skiing, accurately recording data to help you optimize every workout.
HAYLOU Watch 4 with smartphone and Strava icon

1.93" HD Display

The 1.93″ colourful display of the HAYLOU Watch 4 delivers stunning visuals, and the ultra-thin bezel design offers a bigger view on a similar watch size.
2.5D
Touch screen
320*380
Resolution
* Liesneng Lab measures the test data. Actual usage is affected by factors such as settings, operation, and usage environment.
HAYLOU Watch 4 colourful display

Convenient Bluetooth Calling

Easily make/answer calls on the HAYLOU Watch 4 while exercising, travelling, or working. There is no need to take out your smartphone.
2-in-1 Smart chip
One-tap call making / answering
SOS Emergency call
* To use this feature, you must enable it and set an emergency contact in the app. The watch should be kept connected to your smartphone via Bluetooth during use.
Man uses HAYLOU Watch 4

Exquisite Rotating Crown

Gently rotate the refined crown to navigate menus, switch watch faces and browse information, further improving interaction efficiency.
HAYLOU Watch 4 Rotating crown

Al Voice Assistant

You can access the voice assistant instantly by voice command for tasks like making calls, checking the weather, or getting the latest news.
HAYLOU Watch 4 AI Voice Assistant

Smart Message Notifications

Get phone alerts on your wrist-calls, SMS & app notifications sync in real-time. Never miss important updates.
HAYLOU Watch 4 Smart Message Notifications
Woman uses HAYLOU Watch 4

Stylish Watch Faces

Match your unique style and mood with various chic watch faces and customizable components.
Custom watch faces
Online watch faces
Six HAYLOU Watch 4 with different watch faces

Trusted Health Guardian

Featuring a next-generation optical sensor, HAYLOU Watch 4 delivers precise health monitoring, including heart rate, blood oxygen, and sleep tracking.
HAYLOU Watch 4 Sensors
HAYLOU Watch 4 Stress Test screen
All-day stress test
Relax body and mind in time
HAYLOU Watch 4 Heart Rate screen
24-hour heart rate monitoring
Support abnormal heart rate alert
HAYLOU Watch 4 Cycle Tracking screen
Female health management
Record menstrual cycle and fertile period
HAYLOU Watch 4 Sleep Monitoring screen
Scientific sleep monitoring
Help improve sleep quality
Sedentary reminder icon
Sedentary reminder
Move regularly for better health
Breathing training icon
Breathing training
Relieve fatigue and stress
* Liesheng Lab measures the test data. Actual usage is affected by factors such as settings, operation, and usage environment.

Remote Control Camera

Easily take photos through the watch, and there is no need to ask passers-by for help.
* To use the "Shake to Take Photos" function, the watch should be connected to your smartphone via Bluetooth.
HAYLOU Watch 4 Camera Remote Control
HAYLOU Watch 4 Big Battery Art

Ultra-long Battery Life

In basic mode, you can experience up to 15 days of uninterrupted usage on a single charge, saving you the trouble of bringing a charger for a short trip.
7 days
Daily usage mode
15 days
Basic usage mode
24 hours
GPS sports mode
* Typical mode: After fully charged, use the watch with factory default settings and a static watch face; Turn off all-day stress monitoring and all-day blood oxygen monitoring; Turn on all-day heart rate monitoring; Turn on message notifications (100 messages a day, 2 calls, 3 alarms); Raise-to-wake screen 100 times a day; Manually turn on the APP to synchronize data once a day; Make Bluetooth calls for 15 minutes per week; Turn on GPS for 15 minutes of exercise every day.
* Long battery life mode: After fully charging, use the watch with factory default settings and a static watch face; Turn off all-day stress, blood oxygen, and heart rate monitoring; Turn on message notifications (50 messages a day, 1 call, 1 alarm).
* GPS mode: After fully charged, use the watch with factory default settings and a static watch face and place the watch with a heart rate lens outdoors; Turn off all-day stress and blood oxygen monitoring; Turn on all-day heart rate monitoring; Keep GPS turned on for exercise; Turn off the watch screen.

Professional Water Resistance

The HAYLOU Watch 4 has passed a waterproof test in harsh environments. With an IP68 waterproof rating, it can withstand all your daily activities.
* It can be worn and used during workouts, rainy days, and hand washing; do not wear it for hot showers, swims, springs, saunas, and other high-speed water activities. (Damage caused by immersing the device in liquid when used in an inapplicable scenario is not covered by the warranty.)
HAYLOU Watch 4 IP68 Waterproof Rating
HAYLOU Watch 4 Different view modes

8 View Modes

Whether it is a clear list, a high-tech honeycomb, or a simple nine-square grid view mode, it can bring you a brand-new interaction experience.

Useful Widgets

The menu widgets allow you to quickly access common functions such as weather, sports, health, etc..
HAYLOU Watch 4 Widgets menu
Black and White HAYLOU Watch 4 smartwatches

More Practical Features

It supports music playback, games, and more. Whether you use an iOS or Android phone, it works perfectly with HAYLOU Watch 4.

HAYLOU Watch 4 Function Reference

Compatible with Android 9.0 and above
Compatible with iOS 13.0 and above
Mobile phone APP
Haylou Fun
Support
Support
Health
Sleep monitoring
Support
Support
Heart rate monitoring
Support
Support
SpO2 tracking
Support
Support
Female menstrual cycle
Support
Support
Stress test
Support
Support
Sedentary reminder
Support
Support
Water-intake reminder
Support
Support
Heart rate alert
Support
Support
Workout
120+ workout modes
Support
Support
Pedometer
Support
Support
Calorie monitoring
Support
Support
Goal-achieved reminder
Support
Support
Workout recording
Support
Support
Call and SMS
Make/answer calls
Support
Support
Incoming call reminder
Support
Support
Message notification
Support
Support
Applications and other functions
Voice assistant
Support
Support
OTA upgrade
Support
Support
Music control
Support
Support
Vibration adjustment
Support
Support
Volume adjustment
Support
Support
View mode
Support
Support
Remote shutter
Support
Support
Built-in watch faces
Support
Support
Online watch faces
Support
Support
Custom widgets
Support
Support
Weather
Support
Support
Alarm clock
Support
Support
Timer
Support
Support
Stopwatch
Support
Support
Calendar
Support
Support
Calculator
Support
Support
Find phone/watch
Support
Support
Flashlight
Support
Support
Games
Support
Support
Do-Not-Disturb mode
Support
Support
State of charge
Support
Support
Raise-to-wake
Support
Support
Brightness settings
Support
Support
Power on/off
Support
Support

Package List

HAYLOU Watch 4 x1
Charging cable x1
User manual x1
HAYLOU Watch 4 What's in the box

Basic Parameters

Name
HAYLOU Watch 4
Main body size
47.6*38.8*11.8mm
Watch weight
45g (including strap)
Display
1.93" TFT display
Resolution
320*380
Sensors
Heart rate sensor, motion sensor, blood oxygen sensor
Bluetooth
V5.3
Waterproof rating
IP68
Battery life
Approx. 7 days in typical usage mode (long battery life mode enabled)
Battery capacity
380mAh
Data sync platform
Haylou Fun
Equipment requirements
Android 9.0 and above, iOS 13.0 and above
* The above parameters are measured manually, and the 3-5mm difference is normal.
Notes
* This product is not designed as a medical device, nor is it intended to diagnose, treat, cure, or prevent any disease. All data and measurements are for personal reference only and shall not be used as a basis for diagnosis and treatment.
* The content and features shown on this page cannot be guaranteed to be available permanently. Adjustments may occur due to changes in copyright or commercial or technical conditions. If any changes arise without individual notification, please refer to the actual content and features of the product.
* Some functions (including, but not limited to, call reminders, message notifications, etc.) require the phone app to run in the background and stay connected with the watch. For specific instructions, please refer to the app's prompts.
* The battery life data is derived from Liesheng Lab. Battery life may vary due to factors including usage habits, setup, signal strength, and many others and may differ from laboratory results. At low temperatures, battery performance will decline, and battery life will be shortened.
* The app needs to be manually enabled for all-day monitoring. It supports heart rate, blood oxygen, sleep, and stress monitoring in accordance with the conditions of the measuring device.
* Please use the official charging cable. A third-party charging cable is not recommended not to affect the product's everyday use.

Gallery

HAYLOU Watch 4 Black
HAYLOU Watch 4 Silver

Video