1. Introduction
Thank you for choosing the SGNICS F57L Smart Watch. This device is designed to enhance your daily life with features like Bluetooth calling, comprehensive health tracking, and various sport modes. This manual provides essential information for setup, operation, maintenance, and troubleshooting.
What's in the Box:
- 1 x SGNICS F57L Smart Watch
- 1 x User Manual
- 1 x Charging Cable
- 1 x Watch Band

Figure 1.1: Front view of the SGNICS F57L Smart Watch, displaying the main watch face with current time, date, and health metrics.
2. Setup
2.1 Initial Charging
Before first use, fully charge your smart watch. Connect the magnetic charging cable to the charging contacts on the back of the watch and plug the USB end into a standard USB power adapter (5V/1A recommended). The watch display will indicate charging status. A full charge typically takes about 2-3 hours.
2.2 Power On/Off
- Power On: Press and hold the side button for 3-5 seconds until the screen lights up.
- Power Off: From the watch face, swipe down to access the quick settings, then tap the power icon. Alternatively, go to 'Settings' > 'System' > 'Power Off'. Confirm to shut down.
2.3 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 provided in the quick start guide (or on the watch itself) or search for the designated app name (usually mentioned in the quick start guide or on the product packaging) in your phone's app store (Google Play Store for Android, Apple App Store for iOS).
- Register/Log In: Open the app and follow the on-screen instructions to create an account or log in.
- Pair the Watch:
- Ensure Bluetooth is enabled on your smartphone.
- Open the app, navigate to the 'Device' or 'My Watch' section, and select 'Add Device' or 'Bind Device'.
- The app will search for available devices. Select 'F57L' or the corresponding device name from the list.
- Confirm the pairing request on both your phone and the watch if prompted.
- Once paired, the watch will synchronize data with your phone.
Note: For Bluetooth calling functionality, you may need to pair the watch a second time through your phone's Bluetooth settings (look for 'F57L_CALL' or similar) after the initial app pairing.
3. Operating Instructions
3.1 Basic Navigation
- Touch Screen: Swipe left/right to navigate between main functions (e.g., activity data, heart rate). Swipe up to view notifications. Swipe down to access quick settings. Tap to select an item.
- Side Button: Press once to return to the watch face or to turn on the screen. Press and hold for power options or to access the main menu (depending on context).
3.2 Bluetooth Calling
After successfully pairing the watch for calls (refer to Section 2.3), you can make and receive calls directly from your wrist.
- Making a Call: Access the 'Phone' or 'Dialer' function on your watch. You can dial a number directly or select a contact from your synchronized phonebook.
- Receiving a Call: When a call comes in, the watch will vibrate and display the caller ID. Tap the green icon to answer or the red icon to reject.
3.3 Notifications
Once enabled in the companion app, your watch will display notifications from your smartphone applications.
- Viewing Notifications: Swipe up from the watch face to view your recent notifications.
- Managing Notifications: Configure which app notifications appear on your watch through the companion app settings.
3.4 Health Tracking
The SGNICS F57L Smart Watch continuously monitors various health metrics.
- Heart Rate: The watch automatically tracks your heart rate 24/7. View current and historical data on the watch or in the app.
- Activity Tracking: Monitors steps taken, distance traveled, and calories burned throughout the day.
- Sleep Monitoring: Tracks your sleep patterns (deep sleep, light sleep, awake time) when worn during sleep.

Figure 3.1: Rear view of the SGNICS F57L Smart Watch, highlighting the optical heart rate sensor for health monitoring.
3.5 Sport Modes
The watch supports over 50 sport modes to track your workouts accurately.
- Selecting a Mode: Navigate to the 'Workout' or 'Sport' section on your watch. Choose your desired activity (e.g., running, cycling, yoga).
- Starting/Ending a Workout: Tap to start the activity. During the workout, the watch will display real-time data. Tap to pause or end the workout.
3.6 Other Features
The SGNICS F57L includes several utility features:
- Music Playback Control: Control your phone's music directly from the watch.
- Weather Display: Get real-time weather updates (requires app synchronization).
- Remote Photography: Use your watch as a remote shutter for your phone's camera.
- Stopwatch & Countdown: Basic timing functions.
- Find Phone: Locate your paired smartphone by making it ring.
- AI Voice Assistant: Access your phone's voice assistant directly from the watch.
4. Maintenance
4.1 Cleaning Your Watch
Regular cleaning helps maintain the watch's appearance and functionality.
- Wipe the screen and body with a soft, lint-free cloth.
- For stubborn dirt, slightly dampen the cloth with water. Avoid using harsh chemicals or abrasive materials.
- Clean the charging contacts periodically to ensure proper charging.
4.2 Battery Care
- Avoid fully discharging the battery frequently.
- Do not expose the watch to extreme temperatures, as this can degrade battery life.
- If storing the watch for an extended period, charge it to about 50% first.
4.3 Water Resistance
The SGNICS F57L Smart Watch has an IPX7 waterproof rating, meaning it is resistant to splashes, rain, and brief immersion in water up to 1 meter for 30 minutes. However, it is not suitable for swimming, showering with hot water, or diving. Avoid exposing the watch to high-pressure water or steam, as this can compromise the seals.

Figure 4.1: Side view of the SGNICS F57L Smart Watch, illustrating the sleek profile and the secure silicone band.
5. Troubleshooting
If you encounter issues with your SGNICS F57L Smart Watch, refer to the following common solutions:
- Watch won't turn on or charge:
- Ensure the charging cable is securely connected to both the watch and the power source.
- Check if the charging contacts on the watch and cable are clean and free of debris.
- Try a different USB power adapter or port.
- Cannot pair with phone:
- Make sure Bluetooth is enabled on your phone and the watch is within range.
- Restart both your phone and the watch.
- Ensure the companion app is installed and running.
- Forget the device from your phone's Bluetooth settings and try pairing again through the app.
- Notifications not appearing:
- Check notification permissions for the companion app in your phone's settings.
- Ensure notification access is granted to the app within the app's settings.
- Verify that the watch is properly connected via Bluetooth.
- Inaccurate activity data (steps, heart rate):
- Ensure the watch is worn snugly on your wrist, about one finger's width above the wrist bone.
- Avoid excessive movement or loose fit during measurements.
- Calibrate the watch through the app if a calibration option is available.
6. Specifications
| Model Name | F57L |
| Display | 1.91" HD Touch Screen |
| Connectivity | Bluetooth |
| Battery Type | Lithium Polymer |
| Waterproof Rating | IPX7 (Splash, rain, and brief immersion resistant) |
| Band Material | Silicone |
| Case Material | Silicone |
| Supported Applications | Multisport Tracker, Phone, Reminders |
| Compatible Devices | Smartphones (Android/iOS) |
| Metrics Measured | Pedometer, Heart Rate, Calories, Distance, Sleep |
7. Warranty and Support
7.1 Warranty Information
The SGNICS F57L Smart Watch comes with a 60-day limited warranty from the date of purchase. This warranty covers manufacturing defects under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or failure to follow the instructions in this manual.
7.2 Customer Support
If you have any questions, require technical assistance, or need to claim warranty service, please contact the seller or SGNICS customer support through the platform where you purchased the product. Please have your purchase details and product model number (F57L) ready when contacting support.