Introduction
The Cubot X3 is a rugged smartwatch designed for explorers and active users, featuring a durable build, long battery life, and comprehensive health and fitness tracking capabilities. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device.

Package Contents
Please check the package for the following items:
- Cubot X3 Smartwatch
- Charging Cable
- User Manual (this document)
Setup Guide
1. Initial Charging
Before first use, fully charge your Cubot X3 smartwatch. Connect the charging cable to the charging port on the back of the watch and plug the other end into a USB power adapter (not included) or a computer's USB port. The watch display will indicate charging status.

2. App Download and Pairing
The Cubot X3 smartwatch uses the DaFit application for full functionality and data synchronization. It is compatible with both Android OS and iOS devices.
- Download the "DaFit" app from your device's app store (Google Play Store for Android, Apple App Store for iOS).
- Ensure Bluetooth is enabled on your smartphone.
- Open the DaFit app and follow the on-screen instructions to create an account or log in.
- In the app, navigate to "Add Device" or a similar option to search for your Cubot X3 smartwatch.
- Select "Cubot X3" from the list of available devices to pair. Confirm the pairing request on both your phone and the smartwatch.
3. Strap Installation (if applicable)
The Cubot X3 supports interchangeable straps. To attach or detach a strap, locate the quick-release pins on the underside of the strap where it connects to the watch body. Slide the pin to release or secure the strap.
Operating Instructions
1. Basic Navigation
The Cubot X3 features a 1.73-inch AMOLED touch screen and physical buttons for navigation.
- Touch Screen: Swipe left/right, up/down to navigate through menus and notifications. Tap to select items.
- Physical Buttons: The watch has "SPORT", "POWER / BACK", and "MENU" buttons.
- POWER / BACK Button: Press to wake the screen, return to the previous screen, or long-press to power on/off.
- SPORT Button: Quickly access sports modes.
- MENU Button: Access the main menu or app list.

2. Bluetooth Calls and Notifications
Once paired with your smartphone, the Cubot X3 supports Bluetooth calls and message notifications.
- Making/Receiving Calls: Use the watch to dial numbers, answer incoming calls, or view recent call records.
- Message Reminders: Receive notifications for messages, emails, and app alerts directly on your wrist.
- Voice Assistant: Utilize the built-in AI voice assistant for queries and commands.

3. Sports Modes and Activity Tracking
The watch offers over 100 sports modes and uses the GoMore algorithm for accurate workout data tracking. You can set goals for time, calories, and distance.
- Accessing Sports Modes: Press the "SPORT" button or navigate through the menu to select your desired activity (e.g., Walking, Running, Cycling, Swimming, Climbing, Tennis).
- Setting Goals: Before starting an activity, you can set specific goals for your workout.
- Viewing Records: Review your workout records and summaries, including total steps, calories, heart rate, and distance.


Video 1: Demonstration of the Cubot X3 smartwatch's sports tracking, AI Q&A, durability, and environmental monitoring features.
4. Health Monitoring
The Cubot X3 is equipped with a biometric optical sensor for comprehensive health tracking.
- Heart Rate Monitoring: Continuously tracks your heart rate during daily activities, workouts, and rest.
- Blood Oxygen Monitoring (SpO2): Measures oxygen saturation in your blood using optical pulse oximetry technology.
- Sleep Monitoring: Tracks sleep quality, including deep sleep, light sleep, REM sleep, and wakefulness, providing insights into your sleep patterns.
- Stress Monitoring: Provides real-time evaluation of physiological indicators to assess stress levels and offers personalized stress management advice.
- Menstrual Cycle Tracking: Tracks the menstrual cycle and provides personalized health management advice.



5. Environmental Monitoring (Altimeter & Barometer)
For outdoor enthusiasts, the Cubot X3 includes an altimeter and barometer to track environmental conditions.
- Altimeter: Accurately measures the current altitude of your environment.
- Barometer: Provides 24-hour recording of atmospheric pressure changes, useful for predicting weather shifts.
- Compass: A real-time navigation tool to help you stay on course.

6. Customization
Personalize your Cubot X3 with various watch faces and menu styles.
- Watch Faces: Choose from 10 pre-installed tactical watch faces or over 300 cloud designs available through the app. You can also create personalized watch faces using text, images, and dynamic effects via the AI Watch Face engine.
- Menu View: Switch between multiple view styles to match your preferences.


Maintenance
1. Cleaning Your Smartwatch
Regularly clean your Cubot X3 to ensure optimal performance and hygiene.
- Wipe the screen and watch body with a soft, lint-free cloth.
- For stubborn dirt, slightly dampen the cloth with water. Avoid using harsh chemicals or abrasive materials.
- Ensure the charging contacts on the back of the watch are clean and dry before charging.
2. Water Resistance and Drainage
The Cubot X3 is 1 ATM waterproof, capable of withstanding pressure up to 10 meters deep. It is designed for all-day use, including swimming and trekking.
- Sonic Drainage Technology: After exposure to water (e.g., swimming), use the watch's sonic drainage feature to expel water from the speaker and microphone holes quickly. This is typically activated by shaking and tilting the watch as prompted on the screen.
- Avoid prolonged submersion in hot water or exposure to high-pressure water jets.

3. Battery Care
To maximize battery life and longevity:
- Avoid extreme temperatures, which can degrade battery performance.
- Charge the watch regularly, but avoid leaving it fully charged or fully depleted for extended periods.
- Utilize the watch's power-saving modes when not actively using all features to extend battery life.
Troubleshooting
- Watch not turning on: Ensure the watch is fully charged. Connect it to the charger and wait a few minutes before attempting to power it on again.
- Cannot pair with smartphone:
- Ensure Bluetooth is enabled on your phone and the watch.
- Make sure the DaFit app is installed and running.
- Restart both your phone and the watch.
- Check if the watch is already paired with another device. Disconnect if necessary.
- Inaccurate health data:
- Ensure the watch is worn snugly on your wrist, not too tight or too loose.
- Clean the optical sensor on the back of the watch.
- Avoid excessive movement during measurements for better accuracy.
- AI Voice Assistant not responding:
- Ensure your watch is connected to your smartphone via Bluetooth and has an active internet connection.
- Check microphone access permissions for the DaFit app on your phone.
Specifications
| Feature | Specification |
|---|---|
| Brand | Cubot |
| Model | Cubot X3 |
| Category | Smart Watches |
| Display Size | 1.73 inches |
| Screen Material | AMOLED |
| Resolution | 466*466 |
| Touch Screen | Yes |
| Battery Capacity | 900 mAh |
| Battery Life | Up to 100 days (Standby), 20-30 days (Typical Use), 8-15 days (Heavy Use), 10 days (AOD Mode) |
| Bluetooth Version | 5.3 |
| Waterproof Grade | 10m (1 ATM) |
| Weight | 94.6g (include strap) |
| Metrics Measured | Heart Rate Monitor, Blood Oxygen Monitor, Sleep Monitor, Stress Monitor |
| Activity Tracked | Steps Tracker, Distance Tracker, Calorie Tracker |
| Voice Assistant Built-in | Yes |
| GPS | No |
| SIM Card Available | No |
| Movement Type | Electronic |
| Multiple Dials | Yes |
| ROM | 128 MB |
| RAM | 128 MB |
| System Compatibility | Android OS, iOS |
| APP Support | DaFit |
| Case Material | Alloy (Zinc) |
| Band Material | Silica Gel |
| Band Detachable | Yes (Interchangeable) |
| Launch Date | 2025 |
| Certification | EAC, FCC, RoHS |
*Note: Technical specifications may vary based on product updates.
User Tips
- App Compatibility: The Cubot X3 smartwatch is compatible with both iPhone (iOS) and Android phones. Ensure you download the official "DaFit" app for the best experience.
- AI Assistant Connectivity: For optimal performance of the DA GPT AI Q&A feature, ensure your smartwatch has a strong internet connection via your paired smartphone.
- Water Drainage: After swimming or heavy rain, remember to use the watch's sonic drainage function to clear water from the speakers and microphone.
- Customization: Explore the wide range of watch faces available in the DaFit app to personalize your smartwatch's look.
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or contact the official Cubot customer support. Keep your proof of purchase for any warranty claims.





