Introduction
Welcome to the MT55 Smartwatch user manual. This guide provides detailed instructions on how to set up, operate, and maintain your new smartwatch. The MT55 features a vibrant 1.43-inch AMOLED HD display, Bluetooth calling capabilities, comprehensive health monitoring, and multiple sports modes, all within an ultra-thin 6.8mm metal body.

MT55 Smartwatch with a vibrant, customizable display.
Setup Guide
1. Charging Your Smartwatch
Before first use, fully charge your MT55 smartwatch. Use the provided magnetic charging cable. Connect the magnetic end to the charging points on the back of the watch and the USB end to a standard USB power adapter (not included).

The smartwatch displaying 'Fully Charged' during magnetic charging.
- Charging Time: Approximately 2-3 hours for a full charge.
- Battery Life: Expect 5-7 days of typical use on a single charge.
2. App Installation (Da Fit App)
To unlock the full potential of your smartwatch, download and install the 'Da Fit' application on your smartphone.
- Compatible Systems: Android 5.0 or above, iOS 9.0 or above.
- Search for 'Da Fit' in your phone's app store (Google Play Store for Android, Apple App Store for iOS).
- Install the application and grant necessary permissions.
3. Pairing Your Smartwatch
Once the app is installed and your watch is charged:
- Ensure Bluetooth is enabled on your smartphone.
- Open the 'Da Fit' app.
- Follow the in-app instructions to search for and connect to your MT55 smartwatch.
- Confirm the pairing request on both your phone and the watch.
Operating Your Smartwatch
Basic Navigation
The MT55 smartwatch features a full touch screen and physical buttons for control.
- Touch Screen: Swipe left, right, up, or down to navigate through menus and features. Tap to select.
- Buttons: Typically used for power on/off, returning to the home screen, or quick access to specific functions.
Customizing Your Watch Face
Personalize your smartwatch with hundreds of stylish dial choices available through the 'Da Fit' app.

A selection of customizable watch faces for the MT55 Smartwatch.
- Access the watch face settings in the 'Da Fit' app to browse and apply new designs.
- The watch also supports multiple menu styles, allowing you to choose your preferred interface layout.

Different menu styles available on the smartwatch.
Bluetooth Calling
Make and receive calls directly from your wrist when connected to your smartphone via Bluetooth.
- Ensure your watch is paired and Bluetooth is active.
- Access the dialer or contacts from the watch interface to initiate calls.
- Receive incoming call notifications and answer directly on the watch.
Health Monitoring
The MT55 smartwatch provides comprehensive health tracking features:
- Heart Rate Monitoring: Tracks your heart rate 24/7 and provides warnings if thresholds are exceeded.

Heart rate monitoring feature on the smartwatch.
- Blood Oxygen Saturation (SpO2) Testing: Monitor your blood oxygen levels at any time.

Blood Oxygen Saturation (SpO2) testing on the smartwatch.
- Sleep Monitoring: Tracks deep sleep, light sleep, and sporadic naps throughout the day and night.

All-day sleep monitoring for comprehensive sleep analysis.
- Blood Pressure Monitor: Provides blood pressure readings.
- Menstrual Cycle Management: One-key record management and intimate reminders for menstrual periods and ovulation.

Menstrual cycle management feature on the smartwatch.
Activity Tracking & Sports Modes
Track your daily activities and workouts with multiple sports modes.

Multiple sports modes with real-time data tracking.
- Activity Tracked: Steps Tracker, Distance Tracker, Calorie Tracker, Activity Tracker.
- Sports Modes: A variety of indoor and outdoor sports modes with professional sensors to measure calorie consumption and heart rate changes.
- Functions: Passometer, fitness tracker, speed measurement, sports mileage record.
Smart Features & Wrist Assistants
Your MT55 smartwatch offers a range of convenient features:

Wrist assistants for daily convenience.
- Voice Assistant: Double-click to activate the exclusive AI voice algorithm for hands-free operation.

Activate the voice assistant for hands-free control.
- Notifications: Message Reminder, Call Reminder, Push Message, Social Media Notifications.
- Utilities: Alarm Clock, Stopwatch, Timer, Calendar, Calculators, Weather, Remote Music Control, Remote Photography, Find Phone, Sedentary Reminder, Drink Water Reminder, Breathing Training.
- Entertainment: Built-in games.
Maintenance
Water Resistance
The MT55 smartwatch has an IP67 waterproof rating, meaning it is resistant to splashes, rain, and brief immersion in water. It is suitable for daily use but not recommended for swimming, diving, or hot showers.
- Waterproof Grade: IP67 (Life Waterproof).
- Avoid exposure to hot water, steam, or high-pressure water jets.
- Do not operate the watch buttons underwater.
Cleaning and Care
- Wipe the watch and strap regularly with a soft, dry cloth to remove sweat, dirt, and oils.
- If necessary, use a slightly damp cloth for cleaning, then dry thoroughly.
- Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the watch's finish and sensors.
- Keep the charging contacts clean and dry to ensure proper charging.
Troubleshooting
Common Issues and Solutions
- Watch not turning on: Ensure the watch is fully charged. Connect it to the magnetic charger for at least 30 minutes.
- Unable to pair with phone:
- Make sure Bluetooth is enabled on your phone.
- Ensure the 'Da Fit' app is installed and running.
- Restart both your phone and the smartwatch.
- Check if the watch is already paired with another device. Disconnect if so.
- Inaccurate health data:
- Ensure the watch is worn snugly on your wrist, not too tight or too loose.
- Clean the sensors on the back of the watch.
- Environmental factors and movement can affect readings; take measurements while still.
- Notifications not appearing:
- Check app permissions for 'Da Fit' on your phone to ensure notification access is granted.
- Ensure Bluetooth connection is stable.
- Verify notification settings within the 'Da Fit' app.
- Short battery life:
- Reduce screen brightness.
- Limit continuous heart rate monitoring or frequent SpO2 checks.
- Turn off unnecessary features like 'raise to wake' if not frequently used.
Specifications

Physical dimensions and key parameters of the MT55 Smartwatch.
| Feature | Detail |
|---|---|
| Model | MT55 |
| Dimensions | 45.5mm x 45.5mm x 6.8mm |
| Weight | 45g |
| Wristband Size | Length 255mm, Width 22mm |
| Appearance Material | Zinc Alloy / ALLOY |
| Display Screen | 1.43 inch AMOLED HD |
| Resolution | 466*466px enhanced high color gamut |
| Chipset | JL7012A6 |
| FLASH Memory (ROM) | 128MB |
| Bluetooth Version | BT 5.3 |
| Compatible System | Android 5.0 or above, iOS 9.0 or above |
| Battery Capacity | 200mAh (3.8V) |
| Battery Life | 5-7 days (typical use) |
| Charging Time | 2-3 hours |
| Charge Mode | Magnetic charging |
| Waterproof Level | IP67 (Life Waterproof) |
| Control Mode | Full touch screen + buttons |
| Heart Rate Sensor | VC30F-S |
| G-Sensor | DA267-LGA12 |
| APP Language | Chinese, English, Russian, Arabic, Vietnamese, Danish, Thai, Polish, Persian, Spanish, Malay, Greek, French, Italian, German, Portuguese, Türkiye, Latin, Romania, Hebrew, Burmese, Ukrainian |
| Watch Language | Chinese, English, Russian, Arabic, Vietnamese, Danish, Thai, Polish, Persian, Spanish, Malay, Greek, French, Italian, German, Portuguese, Türkiye, Latin, Romania, Hebrew, Burmese, Ukrainian |
| Functions | Bluetooth call, multiple menu styles, 200+ dials, breathing training, custom dials, stopwatch, brightness adjustment, multiple exercise modes, sleep monitoring, real heart rate & blood oxygen, information push, remote music, remote photography, real-time weather, find phone, Bluetooth music playback, calculator, split screen display, alarm clock, sedentary reminder, step counting, calorie consumption, sports mileage record, games, voice assistant, blood pressure monitor, menstrual cycle management. |
Warranty and Support
For any issues or questions regarding your MT55 Smartwatch, please refer to the seller's support channels. Keep your purchase records for any warranty claims.
For technical assistance or further inquiries, please contact the manufacturer or seller directly through their official support channels.
User Tips
- Optimize Battery Life: To extend battery life, consider reducing screen brightness, setting a shorter screen-on time, and disabling continuous health monitoring features if not needed 24/7.
- Stable Bluetooth Connection: For reliable Bluetooth calling and notifications, ensure your smartwatch remains within close proximity to your paired smartphone.
- Regular Cleaning: Clean the watch and its sensors regularly to ensure accurate health data readings and maintain hygiene.
- Explore Customization: Dive into the 'Da Fit' app to explore the wide range of watch faces and menu styles to personalize your smartwatch experience.





