1. Introduction
This manual provides detailed instructions for the KACUBAKU G39 Pro Smart Watch. Please read this manual thoroughly before using the device to ensure proper operation and to maximize its features. This smartwatch is designed to be compatible with Android 9.0+ and iOS 9.0+ devices.

Image: The KACUBAKU G39 Pro Smart Watch, highlighting its compatibility with Android and iOS devices.
2. Package Contents
Upon opening the package, please verify that all items are present and in good condition:
- KACUBAKU G39 Pro Smart Watch (with one band pre-installed)
- Additional Watch Bands (2 pieces, different styles)
- Magnetic Charging Cable
- User Manual

Image: An illustration showing the smartwatch, three interchangeable bands, the magnetic charging cable, and the user manual included in the package.
3. Setup
3.1 Charging the Device
Before initial use, fully charge your smartwatch. Connect the magnetic charging cable to the charging points on the back of the watch and plug the USB end into a power adapter (not included) or a computer's USB port. A full charge typically takes approximately 2 hours.

Image: The smartwatch connected to its magnetic charging cable, displaying a full battery icon.
3.2 App Installation and Pairing
- Download the App: Scan the QR code in the manual or on the watch screen, or search for the companion app in your smartphone's app store (Google Play Store for Android, Apple App Store for iOS).
- Create Account: Open the app and follow the on-screen instructions to create an account and set up your profile.
- Pair the Watch: Ensure Bluetooth is enabled on your smartphone. In the app, navigate to the device pairing section and select your KACUBAKU G39 Pro Smart Watch from the list of available devices. Follow any prompts on both the watch and the phone to complete the pairing process.
3.3 Attaching/Changing Watch Bands
The KACUBAKU G39 Pro Smart Watch comes with three interchangeable bands. To attach or change a band, locate the quick-release pins on the underside of the band. Slide the pin inwards to detach the current band, then align the new band and slide the pin back into place to secure it.

Image: A display of the three distinct watch bands included with the smartwatch, showcasing their varied styles.
4. Operating Instructions
4.1 Basic Navigation
The smartwatch features a 1.85-inch HD touch screen for intuitive control. Swipe left, right, up, or down to navigate through menus and features. Press the side button to return to the home screen or access the app list.

Image: A close-up of the smartwatch's 1.85-inch HD screen, emphasizing its clarity and size.
4.2 Customizing Watch Faces
The watch offers over 300 online watch faces and 5 system dials. You can also upload your own photos to create custom watch faces via the companion app.

Image: A collage of different watch faces available for the smartwatch, including options for custom photo uploads.
4.3 Bluetooth Calls and Notifications
Once paired with your phone, you can make and answer calls directly from your watch. The watch also displays real-time notifications from various apps (e.g., Facebook, WhatsApp, Instagram, SMS). Note that you cannot edit or reply to messages from the smartwatch.

Image: A person wearing the smartwatch, which is displaying an incoming call, illustrating the call function.

Image: The smartwatch showing various app notifications, with icons for popular social media and messaging applications.
4.4 Voice Assistant and Music Control
Utilize the integrated voice assistant for convenient control of your device. You can also control music playback on your smartphone directly from the watch.

Image: A woman interacting with the smartwatch's voice assistant feature, demonstrating hands-free control.
4.5 Additional Smart Features
The smartwatch includes several other convenient features:
- Weather: View current weather conditions.
- Find Phone: Locate your paired smartphone.
- Raise to Wake: Screen activates when you raise your wrist.
- Remote Camera: Control your phone's camera remotely.
- SOS: Emergency contact feature.
- Alarm Clock: Set alarms directly on your watch.
- Sedentary Reminder: Get alerts to move after periods of inactivity.
- Password: Secure your watch with a password.

Image: A visual representation of multiple smartwatch functions, including weather display, phone finder, remote camera control, music playback, and a password entry screen.
5. Health Monitoring
The G39 Pro Smart Watch is equipped with advanced sensors to monitor various health metrics. All data synchronizes with the companion app for detailed analysis.

Image: A woman reading a book with the smartwatch on her wrist, showing graphical representations of heart rate, blood pressure, and blood oxygen levels on the screen.
5.1 Heart Rate, Blood Oxygen (SpO2), and Blood Pressure
The watch continuously monitors your heart rate, blood oxygen saturation, and blood pressure. These measurements provide insights into your cardiovascular health. For medical accuracy, consult a healthcare professional.
5.2 Sleep Tracking
The smartwatch automatically tracks your sleep patterns from 6 PM to 12 PM the next day, categorizing sleep into light, awake, and deep sleep. Review detailed sleep reports in the app to help improve your sleep quality.

Image: A woman sleeping peacefully with the smartwatch on her wrist, illustrating the sleep tracking feature and its data display.
5.3 Menstrual Cycle Tracking
Designed for women's health, the watch can track menstrual periods, predict ovulation, and identify safe periods when configured in the companion app.

Image: A family scene with the smartwatch displaying menstrual period reminders and a calendar view of the physiological cycle in the app.
5.4 Breath Training
Engage in real-time breath training exercises to help manage stress and improve lung function. These guided sessions are accessible directly from the watch.

Image: A woman meditating, with the smartwatch displaying breath training instructions, indicating the duration and type of breathing exercise.
6. Fitness Tracking
The G39 Pro Smart Watch acts as a comprehensive fitness tracker, recording your daily activity and supporting various sports modes.
6.1 Daily Activity Tracking
The watch automatically records your daily steps, distance traveled, and calories burned. This data is available on the watch and in the companion app.

Image: A woman walking her dog, with the smartwatch displaying daily activity metrics such as calories burned, steps taken, and distance covered.
6.2 100+ Sports Modes
Select from over 100 sports modes to accurately track your workouts. Modes include running, hiking, badminton, basketball, climbing, swimming, yoga, and more. The watch provides real-time data such as duration, heart rate, and calories burned for your chosen activity.

Image: A woman stretching, with the smartwatch displaying a selection of over 100 sports modes and detailed workout statistics like exercise duration and heart rate zones.
7. Water Resistance (IP68)
The KACUBAKU G39 Pro Smart Watch has an IP68 waterproof rating, making it suitable for daily activities such as hand washing, sweating during workouts, and exposure to splashes or rain. It is not recommended for diving, high-pressure water activities, or prolonged underwater use.

Image: A woman enjoying the rain while wearing the smartwatch, illustrating its IP68 waterproof capability for activities like rinsing, swimming, handwashing, and rain exposure, with warnings against sauna and diving.
8. Battery Life and Charging
The smartwatch features a 300mAh battery. A full charge takes approximately 2 hours. Battery performance varies based on usage:
- Normal Use: 7-10 days
- Heavy Use: Up to 6 days
- Standby Time: 15-20 days
9. Specifications
| Feature | Specification |
|---|---|
| Model Name | G39 Pro Smart Watch |
| Brand | KACUBAKU |
| Screen Size | 1.85 Inches |
| Shape | Rectangular |
| GPS | GPS Via Smartphone |
| Battery Capacity | 300 Milliamp Hours |
| Connectivity Technology | Bluetooth |
| Wireless Communication Standard | Bluetooth |
| Water Resistance | IP68 |
| Compatible Devices | Android 9.0+ / iOS 9.0+ |
| Item Weight | 7.4 ounces |
| Package Dimensions | 11.14 x 3.98 x 0.83 inches |
10. Troubleshooting
If you encounter issues with your KACUBAKU G39 Pro Smart Watch, please refer to the following common solutions:
- Device Not Turning On: Ensure the watch is fully charged. Connect it to the charging cable and a power source for at least 30 minutes.
- Cannot Pair with Phone:
- Ensure Bluetooth is enabled on your phone.
- Make sure the watch is within Bluetooth range of your phone.
- Restart both your phone and the smartwatch.
- Check if the app is updated to the latest version.
- If previously paired, try unpairing and re-pairing the device through the app.
- Inaccurate Health Readings:
- Ensure the watch is worn snugly on your wrist, not too tight or too loose.
- Keep the sensor clean and free from debris.
- Avoid excessive movement during measurements.
- Note that smartwatch health data is for reference only and should not be used for medical diagnosis.
- Notifications Not Appearing:
- Verify that app notifications are enabled in your phone's settings and within the companion app.
- Ensure the watch is connected via Bluetooth.
- Check if the app is running in the background on your phone.
- Short Battery Life:
- Reduce screen brightness.
- Limit frequent use of power-intensive features like continuous heart rate monitoring or calls.
- Ensure the watch is fully charged each time.
For further assistance, please contact customer support.
11. Warranty and Support
KACUBAKU provides the following support for your G39 Pro Smart Watch:
- 1-Month Returns or Replacement: For initial product issues.
- 1-Year Damaged Replacement: For manufacturing defects or damage under normal use.
- 24/7 Online Q&A: Access to continuous online customer support for any queries or issues.
Please retain your proof of purchase for warranty claims.