1. Introduction
Welcome to the LIGE Smart Watch Z81. This device is designed to enhance your daily life with its advanced features, including Bluetooth calling, comprehensive health monitoring, multiple sports modes, and smart notifications. This manual will guide you through the setup, operation, and maintenance of your new smartwatch.

2. Package Contents
Please check the package for the following items:
- LIGE Smart Watch Z81
- Charging Cable
- User Manual (this document)
3. Specifications
| Feature | Detail |
|---|---|
| Model | Z81 |
| Display | 1.83 Inch IPS HD Large Screen |
| Resolution | 240*284 |
| Bluetooth Version | 5.0 |
| Battery Capacity | 180mAh (3.7V) |
| Waterproof Grade | IP67 (Life Waterproof) |
| App Name | HryFine |
| Compatible System | Android 5.0+ & iOS 9.0+ |
| CPU Model | Smart Watch Z81 (Master chip: ZK5610) |
| CPU Manufacturer | MediaTek |
| RAM | <128MB |
| ROM | <128MB |
| Movement Type | Electronic |
| Case Material | Alloy |
| Band Material | Silica Gel |
| Sensors | LC09A (Heart Rate, Blood Oxygen) |
| Charging Duration | 1.5 hours |
| Usage Time | Up to 7 days |
| Standby Time | Up to 30 days |
| Certification | CE |
| Supported Languages | English, Chinese (Simplified), French, Spanish, Arabic, German, Russian, Japanese, Italian, Portuguese, Korean, Turkish, Polish, Dutch, Swedish, Persian, Thai, Vietnamese, Indonesian, Malay, Filipino, Czech, Greek, Hungarian, Finnish, Ukrainian. |

4. Setup Guide
4.1 Initial Charging
Upon receiving your LIGE Smart Watch Z81, it is recommended to fully charge it before first use. Due to long-term logistics, the battery may be low. Connect the charging cable to the watch and a suitable USB power source. The watch will indicate charging status on its screen.
4.2 App Download and Pairing
To unlock the full potential of your smartwatch, you need to download and connect it to the HryFine app on your smartphone.
- Download the App: Scan the QR code provided in the watch's packaging or search for "HryFine" in your smartphone's app store (Google Play Store for Android, Apple App Store for iOS).
- Install and Open: Install the HryFine app and open it.
- Register/Log In: Follow the on-screen instructions to create an account or log in.
- Enable Bluetooth: Ensure Bluetooth is enabled on your smartphone.
- Add Device: In the HryFine app, navigate to the device section and select "Add Device" or a similar option. The app will search for nearby devices.
- Select Your Watch: Choose "Z81" or the corresponding device name from the list of found devices.
- Confirm Pairing: Follow any prompts on both your watch and phone to confirm the pairing.

5. Operating Instructions
5.1 Basic Navigation
The LIGE Smart Watch Z81 features a full touch screen for easy navigation. Swipe left, right, up, or down to access different menus, notifications, and features. Tap to select an option or confirm an action. Press the side button to return to the home screen or power on/off the device.
5.2 Customizing Watch Faces
Personalize your watch with a variety of watch faces. You can choose from over 200+ pre-installed watch faces, dynamic watch faces, or even set your own photos as wallpaper through the HryFine app. Explore the cloud collection for more options.

5.3 Dynamic Island Function
The watch integrates a dynamic island-like function on its large screen, providing interactive information reminders such as pop-up messages, music playback controls, exercise step counting, stopwatch, and more. This feature allows for seamless interaction with your watch.
5.4 Health Monitoring
The Smart Watch Z81 is equipped with advanced sensors (LC09A) and a ZK5610 high-end control chip for accurate health data. It continuously monitors:
- Heart Rate: Real-time heart rate tracking throughout the day.
- Blood Oxygen (SpO2): Measure your blood oxygen saturation, especially useful during intense exercise to manage fatigue.
- Sleep Monitoring: Tracks your sleep patterns, including deep sleep, light sleep, and awake times, providing insights and advice for better sleep habits.
- Blood Pressure: Monitor your blood pressure levels.
- Female Menstrual Period Management: Track and manage menstrual cycles.



5.5 Sports Modes
The watch supports multiple sports modes to track your physical activities. It records steps, distance, calories burned, and activity duration. Whether you're into brisk walking, running, cycling, mountaineering, basketball, yoga, or other sports, the watch helps you monitor your performance and set new personal bests.

5.6 Communication Features
- Wireless Calls: Connect your smartwatch wirelessly to your phone to make, answer, and reject calls directly from your wrist. The watch features unique noise reduction technology for clear call quality and can synchronize contacts and call records.
- Message Notifications: Receive real-time notifications for incoming calls, text messages, and alerts from social media applications (WeChat, Facebook, Twitter, QQ, etc.). The watch uses vibration reminders, ensuring you don't miss important information.


5.7 Other Features
The LIGE Smart Watch Z81 offers a range of additional smart features:
- Voice Assistant: Control your watch and phone with voice commands.
- Music Control: Play, pause, skip tracks on your phone's music player.
- Remote Camera: Use your watch as a remote shutter for your phone's camera.
- Weather Forecast: Get real-time weather updates.
- Alarm Clock & Timer: Set alarms and use countdown timers.
- Stopwatch & Calculator: Essential utility tools.
- Sedentary Reminder & Drinking Water Reminder: Prompts to keep you active and hydrated.
- Games: Enjoy casual games on your wrist.
- Find Phone & Wristwatch: Locate your paired devices.
- Raise to Wake Screen: Automatically lights up the screen when you raise your wrist.

6. Battery Life and Waterproofing
6.1 Battery Performance
The LIGE Smart Watch Z81 is equipped with a 180mAh high-capacity pure cobalt battery and a ZK5610 low-power main control chip, offering extended usage. You can expect up to 7 days of typical usage time and an impressive 30 days of standby time, reducing the hassle of frequent charging.

6.2 IP67 Waterproof Technology
The watch features IP67 waterproof technology, meaning it is resistant to dust and can withstand immersion in water up to 1 meter for 30 minutes. This makes it suitable for daily life scenarios such as washing hands, rain, and sweat during exercise. It is not recommended for swimming, diving, or hot showers.
7. Maintenance
- Cleaning: Regularly wipe the watch screen and strap with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth and dry thoroughly.
- Sensor Care: Keep the heart rate and blood oxygen sensors on the back of the watch clean and free from debris to ensure accurate readings.
- Charging: Use only the provided charging cable. Avoid using damaged cables or chargers.
- Storage: Store the watch in a cool, dry place when not in use. Avoid extreme temperatures.
- Avoid Chemicals: Do not expose the watch to strong chemicals, detergents, or solvents, as these can damage the materials.
8. Troubleshooting
- Watch Not Turning On: Ensure the watch is fully charged. If it still doesn't turn on, try holding the side button for an extended period (10-15 seconds).
- Cannot Connect to App:
- Make sure Bluetooth is enabled on your phone and the watch.
- Ensure the HryFine app is updated to the latest version.
- Restart both your phone and the watch.
- Try unpairing and re-pairing the device through the app.
- Inaccurate Health Readings:
- Ensure the watch is worn snugly on your wrist, not too tight or too loose.
- Clean the sensors on the back of the watch.
- Avoid excessive movement during measurements.
- Notifications Not Working:
- Check if notifications are enabled in the HryFine app settings for specific applications.
- Ensure the watch is connected to your phone via Bluetooth.
- Verify that your phone's notification permissions are granted to the HryFine app.
- Short Battery Life:
- Reduce screen brightness.
- Limit continuous heart rate monitoring or other intensive features if not needed.
- Ensure the watch is fully charged each time.
9. User Tips
- Regular App Sync: Sync your watch with the HryFine app regularly to ensure all your health and activity data is saved and analyzed.
- Explore Watch Faces: Don't hesitate to experiment with different watch faces to match your style or mood. The app offers many options.
- Stay Hydrated and Active: Utilize the sedentary and drinking water reminders to maintain a healthy lifestyle.
- Optimize Notifications: Customize which app notifications you receive on your watch to avoid being overwhelmed and only get the most important alerts.
- Firmware Updates: Check the HryFine app periodically for any available firmware updates for your watch. Updates often bring new features and performance improvements.
10. Warranty and Support
For warranty information, technical support, or any issues not covered in this manual, please contact the seller or LIGE customer service. Refer to your purchase documentation for specific contact details.





