1. Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your LIGE FV21 Smart Watch. Please read this manual thoroughly before using the device to ensure proper functionality and to maximize your user experience.
2. Package Contents
Verify that all items are present in the package:
- LIGE FV21 Smart Watch
- Charging Cable
- User Manual (this document)
- Watch Band

Figure 2.1: LIGE FV21 Smart Watch with both mesh and silicone watch bands shown.
3. Initial Setup
3.1 Charging the Device
- Connect the provided charging cable to the charging port on the back of the watch.
- Plug the other end of the charging cable into a standard USB power adapter (not included) or a computer's USB port.
- Allow the watch to charge fully before first use. A full charge typically takes approximately 2 hours. The battery icon on the screen will indicate charging status.
3.2 App Installation and Pairing
To unlock the full functionality of your LIGE FV21 Smart Watch, you need to install the companion application on your smartphone.
- Download the App: Search for the official LIGE Smart Watch app in the Apple App Store (for iOS devices) or Google Play Store (for Android devices).
- Create Account: Open the app and follow the on-screen instructions to create a user account or log in if you already have one.
- Enable Bluetooth: Ensure Bluetooth is enabled on your smartphone.
- Pair the Watch:
- Open the app and navigate to the "Device" or "Add Device" section.
- The app will scan for available devices. Select "FV21" from the list.
- Confirm the pairing request on both your smartphone and the watch if prompted.
- Complete Setup: Follow any remaining prompts in the app to complete the initial setup, including personal information and notification preferences.
4. Operating Instructions
4.1 Basic Navigation
- Touch Screen: The 1.43-inch HD touch screen allows for intuitive interaction. Swipe left/right, up/down, and tap to navigate menus and select options.
- Side Button: Press the side button to wake the screen, return to the watch face, or access the main menu.
4.2 Key Features
- Bluetooth Calling: Once paired with your smartphone, you can make and receive calls directly from your watch. Access the call function from the main menu.
- Fitness Tracking: The watch continuously monitors your activity, including steps, distance, and calories burned. View your daily progress on the watch or in the companion app.
- 100+ Sports Modes: Select from over 100 sports modes to track specific workouts. This provides detailed data for activities such as running, cycling, swimming, and more.
- DIY Dial: Customize your watch face using the DIY Dial feature in the app. You can upload personal photos or choose from a variety of pre-designed options.
- Notifications: Receive notifications for calls, messages, and app alerts directly on your wrist. Ensure notification permissions are enabled in the companion app.
- Health Monitoring: The watch includes features for heart rate monitoring and sleep tracking. Consult the app for detailed health data and trends.
5. Maintenance and Care
- Cleaning: Regularly clean your watch and watch band with a soft, dry cloth. If necessary, use a slightly damp cloth and mild soap, then rinse and dry thoroughly. Avoid harsh chemicals.
- Water Resistance (IP68): The LIGE FV21 Smart Watch is IP68 waterproof, meaning it is resistant to dust and can withstand immersion in water up to 1.5 meters for up to 30 minutes. It is suitable for daily use, hand washing, and light rain. Avoid hot water, saunas, or diving, as these can compromise the seal.
- Battery Care: To prolong battery life, avoid fully discharging the watch frequently. Charge it when the battery level is low. Store the watch in a cool, dry place if not used for extended periods.
- Avoid Extreme Temperatures: Do not expose the watch to extreme hot or cold temperatures, as this can damage the battery and internal components.
6. Troubleshooting
| Problem | Solution |
|---|---|
| Watch does not turn on. | Ensure the watch is fully charged. Connect it to the charging cable and allow it to charge for at least 30 minutes before attempting to power it on. |
| Cannot pair with smartphone. |
|
| Notifications are not received. |
|
| Inaccurate fitness data. |
|
7. Product Specifications
| Feature | Detail |
|---|---|
| Model | FV21 |
| Display Size | 1.43 Inches |
| Display Type | AMOLED |
| Connectivity | Bluetooth |
| Battery Capacity | 250 Milliamp Hours (Lithium Polymer) |
| Typical Battery Life | Up to 20 days (usage dependent) |
| Water Resistance | IP68 (Dust and water resistant up to 1.5m for 30 minutes) |
| Compatible Devices | Android & iOS Smartphones |
| Special Features | Activity Tracker, Calendaring, Multisport Tracker, Notifications, Touchscreen, Bluetooth Calling, 100+ Sports Modes, DIY Dial |
| Product Dimensions | 4.8 x 4.3 x 0.7 cm |
| Weight | 180 g |
8. Warranty and Support
For warranty information and technical support, please refer to the warranty card included with your product or visit the official LIGE website. If you encounter any issues not covered in this manual, please contact LIGE customer service for assistance.
LIGE Official Store: Visit the LIGE Store on Amazon





