SPECIFICATIONS
Activity Tracking: Steps Tracker, Distance Tracker, Calorie Tracker, Activity Tracker
AI Voice Assistant: Yes
All‑Day Health Monitoring: Yes
App Download Available: Yes
App Name: Haylou Fun
Application Age Group: Adult
Band Material: Silica Gel
Band Width: 22 mm
Battery Capacity: 400 mAh (300–450 mAh range)
Battery Detachable: No
Battery Life: 18 days
Bluetooth Calling: SOS Emergency Call
Bluetooth‑Compatible Version: 5.3
Bluetooth Version: BT 5.3
Brand Name: Haylou
Case Material: Alloy
Category: Smart Watches
Certification: CE, RoHS, REACH
Color Options: Black / Silver
Compatibility: All Compatible
Detachable Band: Yes
Dial Window Material: Coated Glass
Display Size: 1.43 inch
Everyday Use Mode: 10 days, 18 days
Functions: Passometer, Fitness Tracker, Sleep Tracker, Mood Tracker, Message Reminder, Call Reminder, Answer Call, Dial Call, Remote Control, Push Message, Chronograph, Alarm Clock, Calorie Counter, Power Reserve, Heart Rate Tracker, Interactive Music, Calendar, Calculator, GPS
GPS: Yes
GPS Positioning: Five‑Satellite Positioning Systems
GPS Sport Mode: 26 hours
High‑Concerned Chemical: None
Languages Supported: English, Russian, Spanish, Polish, Portuguese, Turkish, Italian, French, German, Norwegian, Korean, Japanese, Ukrainian, Hebrew, Dutch, Arabic, Indonesian
Launch Date: 2025
Mechanism: No
Metrics Measured: Heart Rate Monitor, Women’s Health Monitoring, Sleep Monitor, Stress Monitor
Model: HAYLOU Watch 4S
Movement Type: Electronic
Multiple Dials: Yes
Network Mode: None
Origin: Mainland China
Product Name: HAYLOU Watch 4S Smartwatch
RAM: <128 MB
ROM: <128 MB
Rear Camera: None
Remote Shutter: Stainless Steel Rotating Crown
Resolution: 466 × 466
Screen Material: AMOLED
Screen Shape: Round
Screen Size: 1.43‑inch AMOLED
SIM Card Available: No
Style: Sport
System: Android OS
Touch Screen: Yes
Type: Wearable
Voice Assistant Built‑In: No
Watch Faces: 200+
Waterproof Grade: Life Waterproof
Waterproof Rating: 1 ATM
Workout Modes: 120+
HAYLOU Watch 4S GPS Smartwatch 1.43” HD AMOLED Display 5 Satellite GPS Positioning 120+ Workout Modes Voice Calling Sport Fitness Smart Watch Up to 18 Days of Battery Life
Key Features
1.43-inch HD AMOLED Display (466 × 466 Resolution)
Built-in 5-Satellite GPS Positioning
Bluetooth Calling (Make & Receive Calls)
Bluetooth 5.3 for Fast & Stable Connectivity
120+ Sports & Workout Modes
24/7 Heart Rate, Sleep & Stress Monitoring
Menstrual Cycle Tracking
SOS Emergency Call
Up to 18 Days Battery Life
1ATM Water Resistance
AI Voice Assistant
Sync with Strava
200+ Watch Faces
Stainless Steel Rotating Crown
Health & Fitness Tracking
Monitor your health anytime with advanced wellness features:
24/7 Heart Rate Monitoring
Sleep Tracking
Stress Monitoring
Menstrual Cycle Tracking
Breathing Exercises
Sedentary Reminder
Hydration Reminder
Exercise Heart Rate Alerts
Step Counter
Calorie Tracking
Workout Records
Daily Goal Reminders
Smart Features
Stay productive and connected with powerful smart functions:
Bluetooth Calls
Incoming Call Notifications
Smart Notifications for WhatsApp, Facebook, Messenger, Gmail, TikTok, YouTube, Twitter, LINE, WeChat, Telegram, and more
AI Voice Assistant
Music Control
Weather Forecast
Alarm
Timer
Stopwatch
Calendar
Find My Phone
Find My Watch
Flashlight
Do Not Disturb Mode
Remote Camera Shutter
Raise to Wake
Power Saving Mode
Low Battery Reminder
OTA Firmware Updates
Brightness Adjustment
Custom Watch Faces
Battery Performance
Battery Capacity: 400mAh Lithium-Polymer
Everyday Use: Up to 10 Days
Basic Use: Up to 18 Days
GPS Sports Mode: Up to 26 Hours
Product Specifications
Brand: HAYLOU
Model: Watch 4S
Display: 1.43-inch AMOLED
Resolution: 466 × 466 Pixels
Bluetooth Version: 5.3
Water Resistance: 1ATM
Strap Width: 22mm Silicone Strap
App: Haylou Fun
Supported Languages
English, Chinese, Korean, Japanese, German, Spanish, French, Italian, Portuguese, Arabic, Polish, Russian, Dutch, Turkish, Bengali, Indonesian, Czech, Thai, Persian, Hebrew, Slovak, Hungarian, Ukrainian, Vietnamese, and Malay.
What's in the Box?
HAYLOU Watch 4S Smartwatch
Silicone Watch Strap (Installed)
Replacement Strap
Magnetic Charging Cable
Screen Protector
User Manual
Reviews
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