Introduction
The K52 Smart Watch is a versatile fitness tracker designed to enhance your daily life with its advanced features. It combines health monitoring, fitness tracking, and smart communication capabilities in a durable and stylish design. This manual provides detailed instructions to help you get the most out of your device.
Key Features
- 1.39-inch Full Touch IPS Screen: High-quality display with 360x360 pixel resolution, clear even outdoors.
- Bluetooth Calling: Make and receive calls directly from your watch with high-fidelity audio.
- Health Monitoring: Track heart rate, blood oxygen, blood pressure, and sleep patterns.
- Fitness Activity Tracker: Supports over 100 motion modes, recording steps, distance, calories, and activity data.
- Long Battery Life: 400mAh battery provides 7-10 days of use and up to 30 days standby.
- Smart Notifications: Receive alerts for messages, calls, and social media apps.
- Customizable Watch Faces: Choose from abundant preset dials or create your own.
- Durable Design: Strong, drop-resistant, and anti-impact construction, tested to military regulatory standards.
- Music Control: Play music directly from your watch during workouts.
- Weather Forecast: Get real-time weather updates on your wrist.
Specifications

Figure 1: Product Parameter Diagram with dimensions and technical specifications.
| Attribute | Value |
|---|---|
| Product Size | 1.39 inch full view all round screen, 360 * 360px |
| Chipset | Realtek 8763E |
| Memory | 128MB Flash |
| Battery | 400mAh |
| Heart Rate Sensor | HS3605 |
| Charging Way | Magnet charging |
| Bluetooth Version | BT5.0 (Low consumption) |
| Compatible OS | Android 4.4 and above & iOS 8.0 and above |
| Waterproof Grade | Life Waterproof (IP67) |
| Case Material | Alloy |
| Band Material | Silica Gel |
| Dial Size | 50 x 50mm (1.96 x 1.96in) |
| Dial Thickness | 13.2mm (0.51in) |
| Strap Width | 22mm (0.86in) |
| Item Weight | 70g (2.46oz) |
| Supported Languages | English, Chinese, Japanese, German, French, Spanish, Arabic, Russian, Ukrainian, Portuguese |
Setup Guide
1. Package Contents
Before you begin, please ensure all items are present in your package:
- 1 x K52 Smart Watch
- 1 x Charging Cable
- 1 x User Manual (this document)
2. Charging the Smart Watch
Upon first use, fully charge your K52 Smart Watch. The watch features a 400mAh battery and uses magnetic charging.
- Connect the magnetic charging cable to the charging points on the back of the watch.
- Plug the USB end of the charging cable into a standard USB power adapter (not included) or a computer's USB port.
- The watch display will indicate charging status. Allow approximately 2-3 hours for a full charge.

Figure 2: Watch charging, illustrating the 400mAh battery.
3. App Installation (FitCloudPro)
To unlock the full potential of your K52 Smart Watch, download and install the companion app, "FitCloudPro", on your smartphone.
- Scan the QR code provided in the quick start guide (if available) or search for "FitCloudPro" in your smartphone's app store (Google Play Store for Android, Apple App Store for iOS).
- Download and install the app.
- Ensure your smartphone meets the compatibility requirements: Android 4.4 and above or iOS 8.0 and above.
4. Pairing with Your Smartphone
Once the watch is charged and the app is installed, proceed with pairing:
- Enable Bluetooth on your smartphone.
- Open the FitCloudPro app.
- Follow the in-app instructions to search for and connect to your K52 Smart Watch.
- Confirm the pairing request on both your watch and smartphone.
Operating Instructions
1. Basic Navigation
The K52 Smart Watch features a 1.39-inch full touch IPS screen for easy interaction.

Figure 3: High-quality IPS display.
- Swipe Up/Down: Navigate through menus and notifications.
- Swipe Left/Right: Access different widgets or quick settings.
- Tap: Select an item or confirm an action.
- Press Side Buttons: The watch has physical buttons for "OPEN" and "BACK" functions, as indicated on the bezel.
2. Customizing Watch Faces
Personalize your watch with various watch faces.

Figure 4: Customize your watch dial.
- Long-press on the current watch face to enter the watch face selection menu.
- Swipe left or right to browse available watch faces.
- Tap to select a watch face.
- More customization options, including uploading your own photos, are available through the FitCloudPro app.
3. Bluetooth Calling and Contacts
Make and receive calls directly from your wrist.

Figure 5: Bluetooth Call synchronous chat.

Figure 6: Sync your contacts for easy dialing.
- Ensure your watch is paired with your phone via Bluetooth.
- To answer a call, tap the green phone icon on the watch screen.
- To make a call, access the dialer or contacts list on the watch. You can import contacts directly from the FitCloudPro app.
4. Health Monitoring
Monitor your vital health metrics throughout the day.

Figure 7: Health Monitoring sensors.

Figure 8: Understand all health information.
- Heart Rate: Access the heart rate monitor function on the watch to get real-time readings.
- Blood Oxygen: Use the blood oxygen monitor to check your SpO2 levels.
- Blood Pressure: The watch can provide blood pressure estimates.
- Sleep Monitor: Wear the watch to bed to track your sleep patterns and quality.
- All health data is synchronized with the FitCloudPro app for detailed analysis and historical trends.
5. Fitness Activity Tracking
Track your workouts and daily activity with precision.

Figure 9: Over 100 multiple exercise modes supported.

Figure 10: Sports Data tracking.
- The watch supports over 100 different exercise modes, including walking, running, cycling, and more.
- Select your desired sport mode before starting an activity to record accurate data such as heart rate, distance, speed, and calorie consumption.
- The watch also tracks daily steps, distance, and calories burned automatically.
6. Smart Notifications
Stay connected with real-time alerts.

Figure 11: Real-time message reminders.
- Once paired with your phone, the watch will display incoming calls, SMS messages, and notifications from social applications like WhatsApp, WeChat, and Twitter.
- Configure which app notifications you wish to receive through the FitCloudPro app settings.
7. Other Functions

Figure 12: More functions available.
- Music Control: Control music playback on your phone directly from the watch.

Figure 13: Music playback during sports.
- Weather Forecast: View current weather and forecasts.

Figure 14: Weather forecast on your wrist.
- Timer & Alarm Clock: Set timers and alarms for various needs.
- Business Card: Share your business card information.
Maintenance
1. Water Resistance (IP67)
The K52 Smart Watch is rated IP67 for daily water resistance. This means it can withstand splashes, rain, and brief immersion in shallow water.
Video 1: Demonstrating the K52 Smart Watch's durability and water resistance.
Important Limitations:
- It is NOT suitable for showering, swimming, or diving.
- Do NOT expose the watch to hot water, steam, or saunas, as this can compromise the seals.
- Avoid pressing buttons underwater.
2. Durability and Care
The watch is built with a strong and durable alloy casing, designed to be drop-resistant and anti-impact, meeting military regulatory standards.

Figure 15: Strong and durable appearance, quality checked like military products.
- Clean the watch regularly with a soft, dry cloth.
- If the watch comes into contact with sweat, dirt, or other substances, wipe it clean promptly.
- Avoid exposing the watch to extreme temperatures or harsh chemicals.
Troubleshooting
1. Watch Not Turning On or Charging
- Ensure the charging cable is securely connected to both the watch's magnetic charging points and a working USB power source.
- Check if the power adapter or USB port is functional.
- Allow the watch to charge for at least 30 minutes before attempting to turn it on, especially if it has been fully discharged.
2. Pairing Issues with Smartphone
- Make sure Bluetooth is enabled on your smartphone and the watch is within range.
- Restart both your smartphone and the K52 Smart Watch.
- Ensure the FitCloudPro app is updated to the latest version.
- If previous pairing attempts failed, try "forgetting" the device in your phone's Bluetooth settings and re-pairing.
3. Inaccurate Health Data
- Ensure the watch is worn snugly on your wrist, but not too tight, with the sensors making good contact with your skin.
- Avoid excessive movement during measurements.
- Clean the sensor area on the back of the watch regularly.
- Note that smartwatches are not medical devices, and readings are for reference only.
4. Notifications Not Appearing
- Verify that the watch is successfully connected to the FitCloudPro app.
- Check the notification settings within the FitCloudPro app to ensure that notifications for desired apps are enabled.
- Ensure your phone's notification settings allow the FitCloudPro app to display notifications.
User Tips
- For optimal battery life, consider adjusting screen brightness and turning off unnecessary notifications.
- Regularly sync your watch data with the FitCloudPro app to keep track of your health and fitness progress.
- Explore the various watch faces and interactive interfaces in the FitCloudPro app to customize your watch's appearance.
- Remember that while the watch is durable, it's best to avoid extreme conditions or direct impact to prolong its lifespan.
Warranty and Support
For warranty information, technical support, or service inquiries, please contact the seller or refer to the purchase platform's support resources. Keep your proof of purchase for any warranty claims.
Please read the user manual carefully before use. There may be 1-3mm error due to manual measurement. There may be slight difference in color due to shooting angle and light. Please refer to the real object.




