1. Introduction
This manual provides detailed instructions for the Mingdaln G25hei Men's Smart Watch. Please read this manual thoroughly before using the device to ensure proper operation and to maximize its features. Keep this manual for future reference.
2. Safety Information
- Do not attempt to disassemble, repair, or modify the device. This may cause damage, electric shock, or fire.
- Keep the device away from extreme temperatures, direct sunlight, and high humidity.
- Avoid exposing the device to strong impacts or vibrations.
- Use only the provided charging cable and a compatible power adapter.
- Consult a medical professional before starting any new exercise regimen, especially if you have pre-existing health conditions.
- The device is IP68 waterproof, but it is not suitable for hot water baths, saunas, or deep diving.
3. Package Contents
Verify that all items are present in your package:
- Mingdaln G25hei Smart Watch
- Charging Cable
- User Manual
4. Product Overview
Familiarize yourself with the components of your Mingdaln G25hei Smart Watch.

Figure 4.1: Mingdaln G25hei Smart Watch. The main display features the time (08:25), date (SUN 22), weather (26°C), step count (24656 Steps), and calorie burn (96 and 546). It also indicates a 50% power level. A smaller inset image shows the watch displaying an incoming call notification with the number '012-3456789'.
4.1 Watch Components
- Display Screen: 1.39-inch touch screen for interaction.
- Side Buttons: For power on/off, screen wake, and menu navigation.
- Sensors: Located on the back for fitness tracking.
- Charging Contacts: On the back for connecting the charging cable.
5. Setup
5.1 Charging the Device
- Connect the magnetic charging cable to the charging contacts on the back of the watch.
- Plug the USB end of the cable into a standard USB power adapter (5V/1A recommended) or a computer's USB port.
- The watch display will show a charging indicator. Allow approximately 2-3 hours for a full charge.
5.2 App Installation and Pairing
To unlock the full functionality of your smart watch, you need to install the companion application on your smartphone.
- Download the App: Scan the QR code in the manual (if provided) or search for the designated companion app (e.g., 'Wear OS' or similar, as per product packaging) in the Apple App Store (for iOS) or Google Play Store (for Android).
- Enable Bluetooth: Ensure Bluetooth is enabled on your smartphone.
- Open the App: Launch the installed app and follow the on-screen instructions to create an account or log in.
- Pair the Watch: Within the app, navigate to 'Add Device' or 'Pair Device'. Select 'G25hei' from the list of available devices. Confirm the pairing request on both your phone and the watch if prompted.
5.3 Initial Settings
After successful pairing, the watch will automatically synchronize time and date with your phone. You can customize personal information and preferences within the companion app, such as:
- User profile (height, weight, age, gender)
- Notification settings
- Watch face customization
- Alarm settings
6. Operating Instructions
6.1 Basic Navigation
- Power On/Off: Press and hold the side button to power on or off.
- Screen Wake: Press the side button or raise your wrist (if enabled) to wake the screen.
- Touchscreen Gestures:
- Swipe Up: Access quick settings or notifications.
- Swipe Down: Access quick settings or notifications.
- Swipe Left/Right: Navigate through different widgets or features (e.g., activity data, heart rate).
- Tap: Select an item or open an application.
- Press and Hold: Change watch faces on the home screen.
6.2 Making and Answering Calls
The Mingdaln G25hei Smart Watch supports Bluetooth calling when connected to your smartphone.
- Answering Calls: When an incoming call is received, the watch will display the caller ID. Tap the green phone icon on the watch screen to answer the call.
- Making Calls: Access the 'Dialer' or 'Contacts' function on your watch. You can dial a number directly or select a contact to initiate a call. The call audio will be routed through the watch's speaker and microphone.
- Ending Calls: Tap the red phone icon on the watch screen to end a call.
6.3 Fitness Tracking
The watch tracks various fitness metrics to help you monitor your activity levels.
- Steps: The watch automatically counts your steps throughout the day. View your daily step count on the main watch face or in the activity widget.
- Calories: Estimated calories burned are calculated based on your activity and personal profile.
- Heart Rate: Access the heart rate monitor function to measure your current heart rate. For accurate readings, ensure the watch is snug on your wrist.
- Sleep Monitoring: The watch can track your sleep patterns automatically. View sleep data in the companion app.
6.4 Notifications
Receive notifications from your smartphone directly on your watch.
- Ensure notification permissions are enabled for the companion app on your smartphone.
- Swipe down or up on the watch face to view recent notifications.
6.5 Water Resistance (IP68)
The Mingdaln G25hei Smart Watch is rated IP68, meaning it is resistant to dust and can withstand immersion in water up to 1.5 meters for up to 30 minutes. This makes it suitable for daily use, such as washing hands or light rain. However, it is not recommended for swimming, diving, hot showers, or saunas, as steam and hot water can compromise the seal.
7. Maintenance
7.1 Cleaning
- Wipe the watch screen and body with a soft, lint-free cloth.
- If necessary, slightly dampen the cloth with water. Do not use harsh chemicals or abrasive cleaners.
- Clean the charging contacts regularly to ensure proper charging.
7.2 Storage
- Store the watch in a cool, dry place when not in use.
- Avoid storing it in direct sunlight or extreme temperatures.
- If storing for an extended period, ensure the battery is partially charged (around 50%) to prolong battery life.
8. Troubleshooting
- Watch not turning on: Ensure the watch is fully charged. Connect it to the charger for at least 30 minutes.
- Unable to pair with phone:
- Ensure Bluetooth is enabled on your phone.
- Make sure the watch is within range of your phone.
- Restart both the watch and your phone.
- Clear Bluetooth cache on your phone (Android) or forget the device and try pairing again.
- Notifications not received:
- Check app notification permissions on your phone.
- Ensure the watch is connected via Bluetooth.
- Verify that 'Do Not Disturb' mode is not active on either the watch or phone.
- Inaccurate fitness data: Ensure the watch is worn snugly on your wrist, not too loose or too tight. Keep the sensor clean.
- Short battery life: Reduce screen brightness, disable unnecessary notifications, and limit continuous heart rate monitoring.
9. Specifications
| Item Model Number | G25hei |
| Brand | Mingdaln |
| Display Size | 1.39-inch |
| Operating System | Wear OS 1.1 |
| Special Feature | Activity Tracker |
| GPS | No GPS |
| Water Resistance | IP68 |
| Compatible Devices | Smartphone (Android, iOS) |
| Included Components | Smart Watch |
| UPC | 607603387530 |
10. Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or contact the retailer. Keep your proof of purchase for warranty claims.