1. Introduction
This manual provides detailed instructions for the QCY GTS S2 Smartwatch. Please read this guide thoroughly before using your device to ensure proper operation and to maximize its features. The QCY GTS S2 is designed to assist you in monitoring your health and fitness activities, offering features such as sleep monitoring and activity tracking.

Figure 1: The QCY GTS S2 Smartwatch, featuring a black rectangular display with a digital clock showing 12:58, step count (12300), and heart rate (123 bpm). The watch has a black silicone strap and a single button on the right side.
2. Package Contents
Verify that all items are present in your package:
- QCY GTS S2 Smartwatch (Black)
- Charging Cable
- User Manual (this document)
3. Setup
3.1 Charging the Smartwatch
- Connect the charging cable to the charging port on the back of the smartwatch.
- 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 hours for a full charge.
3.2 Powering On/Off
- Power On: Press and hold the side button for 3-5 seconds until the QCY logo appears.
- Power Off: From the watch face, swipe down to access quick settings, then tap the power icon, or navigate to "Settings" > "System" > "Power Off". Confirm your selection.
3.3 Pairing with Your Smartphone
To unlock the full functionality of your QCY GTS S2, pair it with the official QCY app on your smartphone.
- Download the official QCY app from your smartphone's app store (iOS App Store or Google Play Store).
- Ensure Bluetooth is enabled on your smartphone.
- Open the QCY app and follow the on-screen instructions to create an account or log in.
- In the app, select "Add Device" or a similar option, then choose "QCY GTS S2" from the list of available devices.
- Confirm the pairing request on both your smartphone and the smartwatch.
Once paired, the watch will synchronize data with your phone, and you can customize settings via the app.
4. Operating Instructions
4.1 Basic Navigation
- Swipe Up: View notifications.
- Swipe Down: Access quick settings (e.g., brightness, DND mode, battery status).
- Swipe Left/Right: Cycle through widgets (e.g., activity data, heart rate, weather).
- Tap: Select an item or open an application.
- Press Side Button: Return to the watch face or open the app menu.
4.2 Health Monitoring
The QCY GTS S2 includes several health monitoring features:
- Heart Rate Monitoring: The watch continuously monitors your heart rate. View current and historical data in the Heart Rate widget or the QCY app.
- Sleep Monitor: Automatically tracks your sleep patterns, including deep sleep, light sleep, and wake times. Access sleep data in the app for detailed analysis.
- Activity Tracking: Records steps taken, distance covered, and calories burned throughout the day.
4.3 Workout Modes
Select from various workout modes to track specific activities:
- From the app menu, tap "Workout" or "Sports".
- Choose your desired activity (e.g., running, walking, cycling).
- Tap "Start" to begin tracking. The watch will display real-time metrics.
- To end a workout, swipe right or press the side button, then select "End" or "Pause".
4.4 Notifications
Receive notifications from your smartphone directly on your smartwatch. Ensure notification permissions are enabled in the QCY app and your phone's settings.
5. Maintenance
5.1 Cleaning the Smartwatch
- Wipe the screen and strap 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 to prevent charging issues.
5.2 General Care
- Avoid exposing the smartwatch to extreme temperatures or direct sunlight for extended periods.
- While the watch may be water-resistant, avoid prolonged submersion or use in hot water/steam. Refer to specifications for water resistance ratings.
- Do not attempt to disassemble the device, as this will void the warranty.
6. Troubleshooting
| Problem | Solution |
|---|---|
| Watch does not power on. | Ensure the watch is fully charged. Connect it to the charger for at least 10 minutes, then attempt to power on again. |
| Cannot pair with smartphone. |
|
| Inaccurate health data. | Ensure the watch is worn snugly on your wrist, about one finger's width above the wrist bone. Clean the sensor on the back of the watch. |
| Notifications not received. |
|
If problems persist, contact QCY customer support for further assistance.
7. Specifications
| Feature | Detail |
|---|---|
| Model | QCY GTS S2 |
| Brand | QCY |
| Color | Black |
| Screen Size | 1.85 Inches |
| Wireless Communication Standard | Bluetooth |
| Special Feature | Sleep Monitor |
| Strap Width | 22 Millimeters |
| Age Range (Description) | Adult |
8. Warranty and Support
QCY products are covered by a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official QCY website. For technical support, troubleshooting assistance, or to inquire about repairs, please contact QCY customer service through their official channels.
You can often find support contact information on the QCY website or within the QCY mobile application.


