1. Introduction
Thank you for choosing the DIXSG D18 Smart Bracelet Smartwatch. This manual provides essential information to help you set up, operate, and maintain your device. Please read it carefully before use.

Figure 1: D18 Smartwatch highlighting features like information display, distance tracking, call/message notifications, heart rate, blood pressure, sleep monitoring, and more.
2. Setup
2.1 Package Contents
Please check the package for the following items:
- D18 Smart Bracelet Smartwatch
- User Manual (this document)
2.2 Device Overview

Figure 2: Diagram showing the main parts of the smart bracelet: detachable watch band, display screen, heart rate sensor, and touch key.
2.3 Charging the Device
Before first use, please charge the device for 1-2 hours. The device may have run out of power during long delivery.
- Hold both sides of the watch band and press down with your thumbs to detach one side of the band from the watch body.
- Locate the Micro 5PIN USB connector at the end of the bracelet.
- Plug this USB connector directly into a standard USB charging port (e.g., wall adapter, computer, power bank).
- The bracelet will automatically turn on once charging begins.

Figure 3: Step-by-step guide on how to detach the watch band and plug the integrated USB connector into a charging port.
2.4 Power On/Off
- Power On: Long press the touch key (or power on/off button) for approximately 4 seconds.
- Power Off: Navigate to the power off option on the watch interface and confirm, or long press the touch key for approximately 4 seconds until the power off option appears.
2.5 App Installation (Fitpro)
To unlock the full features of your smartwatch, you need to install the "Fitpro" app on your smartphone.
- Scan QR Code: Use your phone's camera or a QR code scanner app to scan the QR code below to download the "Fitpro" app.
- Search Manually: Alternatively, search for "Fitpro" in your phone's app store (App Store for iOS, Google Play Store for Android) and install it.

Figure 4: QR code to download the Fitpro application.
2.6 Device Pairing
- Ensure Bluetooth is enabled on your smartphone.
- Open the "Fitpro" app.
- In the app, navigate to the device connection section (usually "Set" or "Device").
- The app will search for available devices. Select the device that matches the MAC address displayed on your smartwatch interface.
- For Android users, please ensure you authorize Fitpro access to all phone functions, allow it to operate in the background, and turn on GPS on your phone before connecting.
- Upon successful connection, the smartwatch will automatically synchronize time and date with your phone.
3. Operating Instructions
3.1 Basic Navigation
The D18 Smartwatch features a single touch key for navigation. Tap to cycle through functions and long-press to select or confirm actions.
3.2 Core Functions
- Time and Date Display: Synchronized with your smartphone.
- Step Counter (Pedometer): Tracks your daily steps, distance, and calories burned. Note: Step count data is for reference only and may not be perfectly accurate.
- Heart Rate Monitoring: Measures your heart rate in real-time.
- Blood Pressure Monitoring: Provides an estimate of your blood pressure.
- Blood Oxygen Monitoring: Measures your blood oxygen levels.
- Sleep Monitoring: Tracks your sleep patterns (deep sleep, shallow sleep, waking state) to help you understand your sleep quality.

Figure 5: Visual representation of USB charging, detailed sleep monitoring data, and the remote camera function.
3.3 Smart Notifications
Once paired with your phone, the smartwatch can receive various notifications:
- Call Reminder: Vibrates and displays the caller ID for incoming calls.
- SMS Alerts: Vibrates and displays incoming text messages.
- Social App Message Reminder: Vibrates and displays notifications from apps like WeChat, QQ, Facebook, Twitter, Line, Whatsapp, and Instagram.
3.4 Activity and Health Reminders
- Sedentary Reminder: Set time intervals in the app; the bracelet will vibrate to remind you to move.
- Drinking Reminder: Set time intervals in the app; the device will remind you to drink water.
- Smart Anti-lost: When enabled, the bracelet will vibrate if the Bluetooth connection to your phone is lost.
3.5 Additional Features
- Remote Photography (Shake for Selfie): Enable this feature in the app, open your phone's camera, and shake your wrist to take a picture remotely.
- Smart Alarm: Set alarms through the Fitpro app, and the bracelet will vibrate at the set time.
- Find Bracelet: Use the app to make your bracelet vibrate, helping you locate it.
- Find Phone: Use the bracelet to trigger an alert on your phone, helping you locate it.
- Turn Wrist to Wake Screen: When enabled, raising your wrist will automatically turn on the screen.
4. Maintenance
4.1 Cleaning
- Wipe the device regularly with a soft, dry cloth.
- Avoid using harsh chemicals or abrasive cleaners.
- Ensure the charging contacts are clean and dry.
4.2 Water Resistance
The D18 Smartwatch features "Professional Waterproof" and "Life Waterproof" capabilities. It is designed to withstand daily activities such as hand washing, splashes, and rain. However, it is not recommended for prolonged submersion, hot water baths, or diving.

Figure 6: The smartwatch is shown in water, illustrating its domestic waterproofing capabilities for daily use.
5. Troubleshooting
- Device Not Turning On/Charging: Ensure the USB connector is fully inserted into a working USB port. If the device was received without a charger, contact your seller.
- Inaccurate Step Count/Data: The step count is for reference only and may not be perfectly accurate. For more precise fitness tracking, consider professional-grade devices.
- Features Not Working (e.g., Calls, Messages): Ensure the device is properly paired with the Fitpro app, and all necessary permissions are granted to the app on your smartphone (especially for Android users, ensure GPS is on and app is running in the background).
- Calls Cutting Off When Connected: Check your phone's Bluetooth settings and the Fitpro app settings for any call handling options. Try re-pairing the device.
- Screen Unresponsive/Touch Issues: Ensure the screen is clean and dry. If issues persist, try restarting the device.
6. Specifications
| Feature | Specification |
|---|---|
| Model | D18 |
| CPU | PHY6222 |
| Bluetooth Version | 5.0 |
| Screen Material | TFT |
| Display Size | 1.44 inches |
| Resolution | 128*128 |
| Touch Screen | Single Touch |
| Battery Capacity | 50mAh |
| Charging Mode | USB Direct Charging |
| Waterproof Grade | Professional Waterproof |
| Weight | 29g (body and strap) |
| System Compatibility | iOS 9.0 and above, Android 5.0 and above |
| App Name | Fitpro |

Figure 7: The D18 Smartwatch features an ultra-thin design, weighing only 29g for comfortable long-term wear.
7. User Tips
- Charging: To charge, pull off one side of the band to reveal the USB plug. It can be plugged directly into a USB wall charger, computer, or power bank.
- First Use: Always charge the device for 1-2 hours upon receiving it, as it may be fully discharged.
- App Permissions (Android): For full functionality, always authorize the Fitpro app to access all phone functions, allow it to run in the background, and ensure your phone's GPS is turned on before connecting.
8. Frequently Asked Questions (FAQ)
- Q: Where do I charge the watch?
A: Detach one side of the watch band to reveal the integrated USB plug, which can be inserted directly into any standard USB charging port. - Q: How do I start the watch?
A: Long press the touch key (or power on/off button) for about 4 seconds to power it on. - Q: What type of screen protector should I use?
A: A universal screen protector for 1.44-inch circular displays should fit. - Q: The watch cuts off calls when connected to my phone. What should I do?
A: Check your phone's Bluetooth settings and the Fitpro app's permissions and settings related to call handling. Try unpairing and re-pairing the device.
9. Warranty and Support
For any issues, warranty claims, or technical support, please contact your seller directly. Refer to the official user manual PDF for additional details if available.
PDF User Manual Reference: A detailed user manual in PDF format may be available from your seller or within the Fitpro app. (e.g., View User Manual (PDF))