1. Introduction
Thank you for choosing the Docooler DM100 4G Smart Watch. This device combines the functionality of a smartphone with the convenience of a smartwatch, featuring a large 2.86-inch touchscreen, 4G LTE connectivity, and comprehensive health tracking capabilities. This manual will guide you through the setup, operation, and maintenance of your new smartwatch to ensure you get the most out of its features.
2. Important Safety Information
Please read all safety information before using the device to ensure safe and proper use. Failure to follow these instructions may result in injury or damage to the device.
- Do not expose the device to extreme temperatures (below -10°C or above 45°C).
- Avoid dropping or subjecting the device to severe impacts.
- Use only Docooler-approved chargers and accessories.
- Do not attempt to disassemble, repair, or modify the device yourself.
- Keep the device away from water and moisture, despite its IP67 rating, to prevent damage to internal components.
- Consult a medical professional before starting any new exercise regimen or if you have pre-existing health conditions that may be affected by heart rate monitoring.
3. What's in the Box
Please check the contents of your product box. If any items are missing or damaged, contact your retailer.
- Docooler DM100 4G Smart Watch
- Detachable Strap
- Charging Cable
- User Manual
- Screen Protector (pre-applied or extra)
4. Product Overview
Familiarize yourself with the components of your Docooler DM100 Smart Watch.

Front view of the Docooler DM100 Smart Watch, showcasing its large display and sleek design.

The 2.86-inch HD screen of the Docooler DM100 Smart Watch, providing an immersive visual experience.

Docooler DM100 Smart Watch displaying icons for 4G/3G/2G network, WiFi, and Nano-SIM slot, indicating its global connectivity.

Rear view of the Docooler DM100 Smart Watch, showing the integrated heart rate sensor.
5. Setup Guide
5.1. Charging the Device
Before first use, fully charge your Docooler DM100 Smart Watch. Connect the charging cable to the watch's charging port and plug the other end into a compatible USB power adapter. The 2700 mAh battery provides extended usage time.

The Docooler DM100 Smart Watch being charged, illustrating its long-lasting battery.
5.2. SIM Card Installation
The DM100 supports a Nano SIM card for 4G LTE network connectivity. Locate the SIM card slot on the watch, open it carefully, and insert your Nano SIM card with the gold contacts facing down. Ensure it clicks into place. Close the slot cover securely.
5.3. Powering On/Off
- To Power On: Press and hold the power button (usually on the side) until the screen lights up.
- To Power Off: Press and hold the power button, then select 'Power Off' from the options on the screen.
5.4. Initial Configuration
Upon first power-on, follow the on-screen prompts to select your language, connect to a Wi-Fi network, and set up your Google account (if desired) to access the app store and other Android features.
6. Operating Your Smart Watch
6.1. Basic Navigation
The DM100 features a full touch screen. Swipe left, right, up, or down to navigate through menus, notifications, and apps. Tap to select items.
6.2. Making Calls and Sending Messages
With a Nano SIM card installed, you can make and receive calls directly from your watch. Use the Phone app to dial numbers or access contacts. The Messaging app allows you to send and receive text messages.

The Docooler DM100 Smart Watch demonstrating its fast 4G network capability for video calls and online applications.
6.3. Applications and Connectivity
Running on Android 7.1, the DM100 allows you to download various applications from the pre-installed app store. It supports Bluetooth (BT) for connecting to headphones or other devices, GPS for navigation, and Wi-Fi for internet access.
6.4. Health Tracking
The watch includes a pedometer to track your steps and distance, and a built-in heart rate monitor to keep tabs on your heart rate during activities and throughout the day.

The Docooler DM100 Smart Watch displaying real-time heart rate, distance, and calorie data during an activity.
6.5. Using the Camera
The 5MP HD camera allows you to capture photos and videos directly from your wrist. Open the Camera app and tap the shutter button to take a picture or record a video.

An illustration highlighting the 5MP HD camera of the Docooler DM100 Smart Watch, designed for capturing moments with clarity.
6.6. Customizing Watch Faces
The DM100 supports DIY watch faces, allowing you to personalize the appearance of your watch to match your style or mood. Access the watch face settings through the display menu.
7. Maintenance and Care
7.1. Cleaning the Watch
Wipe the watch regularly with a soft, dry cloth. For stubborn smudges, slightly dampen the cloth with water. Avoid using harsh chemicals or abrasive materials.
7.2. Battery Care
To prolong battery life, avoid fully discharging the battery frequently. Charge the watch before the battery level drops too low. Store the watch in a cool, dry place when not in use for extended periods.
7.3. Water Resistance (IP67)
The DM100 is IP67 rated, meaning it is protected from dust and can withstand immersion in water up to 1 meter for up to 30 minutes. However, it is not recommended for swimming or showering. Ensure the SIM card slot cover is securely closed to maintain water resistance.

The Docooler DM100 Smart Watch being exposed to water, demonstrating its IP67 waterproof rating for outdoor activities.
8. Troubleshooting
If you encounter issues with your Docooler DM100 Smart Watch, refer to the following common problems and solutions.
| Problem | Possible Solution |
|---|---|
| Watch is slow or lagging. | Close unnecessary background applications. Restart the watch. Ensure sufficient storage space. |
| Watch heats up during use. | This can occur with excessive application usage or during prolonged 4G/GPS activity. Close unused apps. Reduce screen brightness. If it persists, power off and let it cool. |
| Poor network signal or connectivity. | Check SIM card installation. Ensure you are in an area with good network coverage. Restart the watch. Verify Wi-Fi connection settings. |
| Bluetooth connection issues. | Ensure the watch and the other device are within Bluetooth range. Restart both devices. Unpair and re-pair the devices. |
| Battery drains quickly. | Reduce screen brightness. Disable unused features like Wi-Fi, GPS, or Bluetooth when not needed. Limit background app refresh. |
9. Specifications
| Feature | Detail |
|---|---|
| Model | DM100 |
| Operating System | Android 7.1 |
| CPU | MTK6739 Quad-core |
| RAM | 1 GB |
| Memory Storage Capacity | 16 GB |
| Screen Size | 2.86 Inches |
| Display Type | IPS full mount screen, 640x480 resolution |
| Battery Capacity | 2700 mAh Lithium Polymer |
| Connectivity | 4G LTE (Nano SIM), Wi-Fi, Bluetooth, GPS |
| Camera | 5MP HD |
| Water Resistance | IP67 |
| Item Weight | 5.45 Ounces (approx. 155g) |
10. Warranty and Support
Docooler products are manufactured to the highest quality standards. In case of any product problems or for technical assistance, please feel free to contact our customer service. We are committed to resolving your concerns and ensuring your satisfaction.
Please refer to your purchase documentation for specific warranty terms and conditions applicable to your region.



