Introduction
The SOUYIE KW350C Smart Watch is a versatile device designed for active lifestyles, offering advanced health monitoring, extensive sports tracking, and smart connectivity features. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device.
Video Description: This video provides a general overview of the SOUYIE Smart Watch with GPS, showcasing its design and various functionalities.
What's in the Box
- 1 SOUYIE KW350C Smart Watch
- 1 User Manual
- 1 TPU Silicone Strap
- 1 USB Magnetic Charging Cable
Setup
1. Charging the Device
Before initial use, fully charge your SOUYIE KW350C Smart Watch. Connect the magnetic charging cable to the charging contacts on the back of the watch and to a USB power source. A full charge typically takes 2 hours. 30 minutes of charging can provide up to 60 hours of battery life.

Image Description: The SOUYIE KW350C Smart Watch connected to its magnetic charging cable, illustrating its long battery life and charging capability.
2. App Installation and Pairing
Download the companion app (e.g., HaWoFit, as seen in videos) from your smartphone's app store (compatible with Android 8.0+ and iOS 9.0+). Follow the in-app instructions to pair your watch via Bluetooth. Ensure Bluetooth is enabled on your phone.
Operating Instructions
1. Basic Navigation
The watch features a 1.43-inch AMOLED color screen with 466x466 HD resolution. Navigate through menus by swiping up, down, left, or right on the touchscreen. Use the physical buttons for quick access to specific functions or to return to the home screen.
2. Sports Modes
The watch supports 178 professional sports modes, including mountaineering, skiing, diving, surfing, running, and more. It automatically recognizes sports functions. Select your desired activity from the sports menu to track your performance.

Image Description: A person cycling with the SOUYIE KW350C Smart Watch, highlighting the watch's 178 sports modes feature.
3. GPS and Offline Maps
The watch includes an independent GPS chip and supports offline topographic maps. This allows for precise navigation even in areas without signal. You can download maps to the device via the companion app.

Image Description: The SOUYIE KW350C Smart Watch displaying GPS navigation with offline maps, illustrating its six-star positioning capability.
Video Description: This video demonstrates the procedure for downloading offline maps to the SOUYIE Smart Watch, showing the app interface and download progress.
Video Description: This video illustrates the GPS operation procedure on the SOUYIE Smart Watch, including starting an outdoor running activity and displaying the map.
4. Health Monitoring
The KW350C is equipped with the HX3691 sensor for accurate 24/7 monitoring of heart rate, blood oxygen (SpO2), stress, sleep, and mood. It also includes female health tracking and PAI vitality index analysis. The watch intelligently identifies deep sleep, light sleep, and wakefulness patterns.

Image Description: The SOUYIE KW350C Smart Watch displaying various health metrics such as heart rate, blood oxygen, and stress, indicating its health data sensor capabilities.
5. Bluetooth Calling & Notifications
With Bluetooth 5.4 and dual-microphone noise reduction, the watch ensures clear and stable calls. Sync up to 150 contacts, return calls, and view call logs directly from your wrist. Receive real-time notifications for WhatsApp/SMS messages with voice-to-text response capabilities.
6. AI Features
The AI Voice Assistant allows for voice-generated fitness plans, travel guides, and meeting summaries. It also offers 20 AI virtual companions (fitness trainer, language mentor, psychological counselor) and real-time translation in 24 languages. Daily fitness reports are automatically generated.
7. Display Features
The 1.43-inch AMOLED display boasts 1000-nit brightness and 466x466 HD resolution, protected by 7H hardness Panda Glass. Customize your watch face with AI voice-generated options, 280+ cloud-based watch faces, or DIY photo/video backgrounds. Features include smart screen-off display, wrist-flip screen-on, and configurable Always-On Display (AOD).
8. Other Features
- Barometer, Altimeter, Compass: High-precision sensors assist with positioning and environmental data.
- Built-in LED Flashlight: Provides convenient lighting with variable intensity and red safety lights.
- Music Playback: Control music directly from your watch.

Image Description: The SOUYIE KW350C Smart Watch displaying compass, altitude, and barometer readings, indicating its utility for outdoor activities.
Maintenance
1. Water Resistance
The KW350C is 5ATM certified (water resistant up to 50 meters), making it suitable for swimming and other water activities. It includes a sonic drainage function to ensure a dry interior after exposure to water.

Image Description: The SOUYIE KW350C Smart Watch being worn by divers underwater, demonstrating its 5ATM waterproof capability.
2. Cleaning
Regularly clean your watch and strap with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials that could damage the device. Ensure the charging contacts are clean and dry before charging.
Troubleshooting
1. Inaccurate Temperature Display
If the watch displays inaccurate temperature readings, try restarting the device. Ensure the watch is worn snugly on your wrist for optimal sensor performance.
2. Connectivity Issues
If the watch frequently disconnects from your phone, ensure the companion app is running in the background and Bluetooth is active. Try restarting both your watch and smartphone. If issues persist, re-pair the devices through the app.
Specifications
| Feature | Detail |
|---|---|
| Model Number | KW350C |
| Screen Size | 1.43 Inches AMOLED |
| Resolution | 466x466 HD |
| Peak Brightness | 1000 nits |
| Water Resistance | 5ATM (50 meters) |
| GPS | Built-in GPS, Offline Maps |
| Battery Capacity | 550 mAh Lithium Ion |
| Battery Life | 10-21 days (normal use), 30+ days (standby) |
| Connectivity | Bluetooth 5.4 |
| Operating System | Compatible with Android 8.0+ / iOS 9.0+ |
| Item Weight | 81 Grams (2.86 ounces) |
| Special Features | AI Voice Assistant, 178 Sports Modes, Heart Rate, Blood Oxygen, Stress, Sleep Monitor, Compass, Altimeter, Barometer, LED Flashlight, Bluetooth Calling |
Warranty & Support
The SOUYIE KW350C Smart Watch comes with a 3-year warranty and offers 30-day free returns. For any questions or support, please contact customer service through your purchase platform. 24/7 customer support is available to assist you.





