Introduction
Thank you for choosing the KLACK L8 Smart Watch. This device is designed to be your smart life assistant, offering features such as heart rate monitoring, sleep tracking, activity tracking, and smartphone synchronization. Please read this manual carefully to understand how to operate your new smartwatch and make the most of its capabilities.

Package Contents
Please check the package for the following items:
- KLACK L8 Smart Watch (with band)
- User Manual (this document)
- USB Charging Cable (integrated into the watch, no separate charger needed)
Product Overview
The KLACK L8 Smart Watch features a 1.3-inch HD screen with a narrow bezel design, offering a clear visual experience. Its slim body and silicone strap ensure comfort for daily wear.


Key Components:
- Display: 1.3-inch HD LCD screen (240x240 resolution).
- Side Button: For navigation and power control.
- Optical Sensor: Located on the back for heart rate and other health metrics.
- USB Charging Port: Integrated into the watch strap for direct USB charging.
- Detachable Band: Allows for easy replacement.
Setup
1. Charging the Smart Watch
The L8 Smart Watch features an integrated USB charging mechanism. Simply connect the watch directly to a USB port (e.g., a computer USB port, a USB wall adapter, or a power bank). No separate charging cable is needed. Ensure the watch is properly aligned with the USB port for charging to begin.
Note: The watch does not require a separate charger; it charges like a phone via USB.
2. Powering On/Off
- To Power On: Press and hold the side button until the screen lights up.
- To Power Off: Navigate to the power off option in the watch's settings menu, or press and hold the side button and confirm power off if prompted.
3. App Installation and Pairing
To unlock the full potential of your smartwatch, you need to install the companion application on your smartphone.
- Download the App: Search for "Fitpro" in your smartphone's app store (Google Play Store for Android or Apple App Store for iOS) and install it.
- Enable Bluetooth: Ensure Bluetooth is enabled on your smartphone.
- Open the App: Launch the Fitpro app and follow the on-screen instructions to create an account or log in.
- Pair the Device: Within the Fitpro app, navigate to the device pairing section. The app will search for available devices. Select "L8 Smart Watch" (or similar identifier) from the list to pair.
- Confirm Pairing: You may need to confirm the pairing on both your watch and your smartphone.
Once paired, the watch's time and date will automatically synchronize with your phone.
Operating Instructions
Basic Navigation
The L8 Smart Watch features a touch-sensitive screen for most interactions. A side button is also available for specific functions like waking the screen or returning to the home screen.
- Swipe Up/Down/Left/Right: To navigate through menus and different watch faces.
- Tap: To select an option or open an application.
- Side Button: Typically used to return to the home screen or wake the device.
Health Monitoring Features

- Heart Rate Monitor: The watch uses a new generation optical LED green light sensor combined with an intelligent heart rate algorithm for accurate measurement. Access the heart rate function on the watch to start a measurement. Data can be tracked and analyzed in the Fitpro app.
- Sleep Monitor: The smartwatch records your sleep patterns, measuring different phases including awake, light sleep, and deep sleep. View detailed sleep analysis in the Fitpro app.
- Women's Health Monitoring: (If applicable and configured in the app) Track specific health metrics relevant to women.
Activity Tracking

The 3D sensor in your smartwatch accurately tracks your daily activities:
- Steps Tracker: Counts your daily steps.
- Distance Tracker: Estimates the distance you've walked or run.
- Calorie Tracker: Calculates calories burned based on your activity.
- Activity Tracker: Monitors overall activity levels.
- Passometer: A general term for step counting.
More accurate sports tracking and timely collection of sports data are available through the Fitpro app, allowing you to set goals, monitor progress, and build a healthy sports lifestyle.
Smart Notifications and Controls
Product demonstration video showcasing various features and watch faces.
- Phone & Message Synchronization: Receive real-time notifications for incoming calls, SMS, WeChat, QQ, Twitter, Facebook, WhatsApp, and other app messages directly on your watch when connected to your smartphone.
- Remote Camera: Use your watch as a remote shutter for your smartphone camera.
- Smart Alarm: Set alarms through the Fitpro app, and your watch will vibrate to wake you up or remind you.
- Sedentary Reminder: The watch can remind you to move if you've been inactive for too long. Configure this feature in the Fitpro app.
- Luminous Display: The screen provides clear visibility.
- Calendar: Access calendar functions directly on the watch.
Language Settings
The watch supports multiple languages including English, Spanish, and Portuguese. Language settings are typically synchronized with your phone's language or can be adjusted within the Fitpro app.
Maintenance
- Cleaning: Wipe the watch and band regularly with a soft, dry cloth. If necessary, use a slightly damp cloth and then dry thoroughly. Avoid harsh chemicals or abrasive materials.
- Band Care: The resin band is durable. Since the band is detachable, you can easily clean it separately or replace it if needed.
- Water Resistance: The official specification for this watch states "Not waterproof". While some promotional images may suggest IP67 water resistance for daily activities like hand washing or rain, it is strongly recommended to avoid exposing the watch to water to prevent damage. Do not wear it while swimming, showering, or bathing.
- Storage: Store your watch in a cool, dry place when not in use.
Troubleshooting
If you encounter issues with your KLACK L8 Smart Watch, please refer to the following common problems and solutions:
- Watch not turning on:
- Ensure the watch is fully charged. Connect it to a USB port for at least 30 minutes.
- Press and hold the side button for several seconds to attempt to power it on.
- Watch not charging:
- Verify that the integrated USB connector is properly inserted into a working USB port.
- Try a different USB port or power source.
- Unable to pair with smartphone / Not syncing data:
- Make sure Bluetooth is enabled on your phone and the watch is within range.
- Ensure the "Fitpro" app is installed and running on your phone.
- Restart both your watch and your smartphone.
- In your phone's Bluetooth settings, forget the device if it was previously paired, then try pairing again through the Fitpro app.
- Check if the app has necessary permissions (location, notifications) on your phone.
- Incorrect Date/Time:
- Ensure the watch is successfully paired and synchronized with the Fitpro app. The time and date should update automatically upon successful synchronization.
- Touch screen unresponsive or only side button works:
- Restart the watch.
- Ensure the screen is clean and dry.
- If the issue persists, it might indicate a hardware problem.
- Battery life is short:
- Frequent use of features like continuous heart rate monitoring or bright screen settings can drain the battery faster.
- Reduce screen brightness or notification frequency.
- Ensure the watch is fully charged each time.
If these steps do not resolve the issue, please contact customer support for further assistance.
Specifications
| Feature | Specification |
|---|---|
| Model | L8 Smart Watch |
| Brand | KLACK Europe |
| Display | 1.3-inch LCD, 240x240 Resolution |
| Dimensions (Watch Body) | 36.3mm (W) x 41.5mm (H) x 12.5mm (T) |
| Band Length | 260mm |
| CPU Model | Klack |
| CPU Manufacturer | Qualcomm |
| RAM | <128MB |
| ROM | 256MB |
| Battery Capacity | 180-220mAh |
| Battery Life | 12-72 hours |
| Bluetooth Version | 5.0 |
| Compatibility | All Compatible (Android, iOS) |
| App Name | Fitpro |
| Metrics Measured | Heart Rate, Women's Health, Sleep Monitor |
| Activity Tracked | Steps, Distance, Calories, General Activity |
| Waterproof Grade | Not waterproof (Refer to Maintenance section for details) |
| Case Material | Plastic |
| Band Material | Resin |
| Certification | CE |
| Supported Languages | English, Spanish, Portuguese |
User Tips
- Charging: Remember the L8 charges directly via its integrated USB connector. No separate cable is needed, just plug it into any standard USB port.
- Synchronization: If your watch's time or date is incorrect, ensure it's properly paired and synchronized with the Fitpro app. Check your phone's Bluetooth settings to confirm the connection.
- Water Exposure: Despite some visual claims, the official specification states the watch is NOT waterproof. Avoid submerging it or exposing it to significant water to prevent damage.
- Battery Life: To maximize battery life, consider reducing screen brightness and the frequency of notifications if you find the battery draining quickly.
- App Permissions: Ensure the Fitpro app has all necessary permissions (e.g., location, notifications) on your smartphone for optimal performance and data synchronization.
Warranty and Support
For any issues not covered in this manual, or for warranty claims, please contact the seller or manufacturer's customer support. Keep your purchase receipt as proof of purchase.
For security and privacy information regarding your personal data, please refer to the "Security & Privacy" section on the product's purchase page or contact customer support.