1. Introduction
Thank you for choosing the HK10 Ultra 3 Smart Watch. This device is a comprehensive fitness tracker designed to monitor your health and enhance your daily activities. It features a full HD Ltpo AMOLED screen, advanced health monitoring capabilities including heart rate, SpO2, and sleep tracking, and supports over 100 sport modes. This manual provides essential information on setting up, operating, and maintaining your smart watch.

An image showing the HK10 ultra 3 Smart Watch. The watch features a rectangular dark display with a digital watch face showing time (10:08), date (28 MAR WED), battery percentage (100%), heart rate (088), and activity rings. The watch body is titanium-colored, and it is fitted with a bright orange, wavy silicone strap with silver clasps.
2. Setup
2.1 Package Contents
- HK10 Ultra 3 Smart Watch x 1
- Wireless Magnetic Charging Cable x 1
- User Manual x 1
- Original Retail Box x 1
2.2 Charging the Device
Before first use, fully charge your smart watch. Connect the wireless magnetic charging cable to a USB power source and place the watch onto the charging pad. The watch display will indicate charging status. A full charge typically takes approximately 2 hours.
2.3 App Installation and Pairing
To unlock the full functionality of your HK10 Ultra 3 Smart Watch, download and install the Qifit application on your smartphone. The app is compatible with Android 5.0+ and iOS 8.0+ devices.
- Scan the QR code provided in the retail box or search for "Qifit" in your phone's app store.
- Install the application.
- Ensure Bluetooth is enabled on your smartphone.
- Open the Qifit app and follow the on-screen instructions to pair your smart watch via Bluetooth 5.0.
- Once paired, the watch will synchronize time and data with your phone. Real-time positioning requires connection to the mobile app.
3. Operating Instructions
3.1 Basic Navigation
- Touch Screen: Tap to select, swipe to navigate menus and screens.
- Side Button/Crown: Press to return to the home screen or access the app menu. Rotate for scrolling or zooming.
- Orange Key: This customizable key can be set for quick access to frequently used functions.
3.2 Key Features and Functions
- Health Monitoring: Monitor heart rate, blood oxygen (SpO2), and body temperature. The watch also provides comprehensive sleep monitoring.
- Activity Tracking: Supports 173 sports modes to accurately track your workouts and daily activity.
- Communication: Make and receive Bluetooth calls directly from the watch. Manage up to 500 contacts. Unread messages are indicated by a red dot.
- NFC Access Control: Utilize NFC for access control unlock (ensure compatibility with your system).
- Reminders: Set independent alarms, drinking water reminders, and sedentary reminders to promote a healthy lifestyle.
- Display Customization: Features include lock screen password, screen off clock, Always-on display, and custom watch faces.
- Smart Gestures: Use 'raise to wake up' to activate the screen and 'cover to turn off the screen' for quick display off.
- Utilities: Access voice assistant, weather forecast, calculator, timer, and bedside lamp mode.
- Audio: Enjoy local music playback and sound recording. Connect to Bluetooth earphones for private listening.
- Adjustments: Easily adjust vibration intensity, screen brightness, and volume settings.
4. Maintenance
4.1 Cleaning Your Smart Watch
Regularly clean your watch and strap to prevent skin irritation and maintain device performance. Use a soft, lint-free cloth. For stubborn dirt, slightly dampen the cloth with water. Avoid using harsh chemicals or abrasive materials.
4.2 Water Resistance
The HK10 Ultra 3 Smart Watch is 5ATM Waterproof. This means it can withstand pressures equivalent to a depth of 50 meters. It is suitable for splashes, rain, showering, and shallow-water swimming. However, it is not recommended for diving, snorkeling, or high-speed water sports. Avoid exposure to hot water, steam, or strong jets of water, as this may compromise the water resistance.
5. Troubleshooting
5.1 Common Issues and Solutions
- Watch not turning on: Ensure the watch is fully charged. Connect it to the charging cable and a power source for at least 30 minutes.
- Unable to pair with phone:
- Ensure Bluetooth is enabled on both devices.
- Make sure the watch is within Bluetooth range of your phone.
- Restart both the watch and your phone.
- Clear Bluetooth cache on your phone (if applicable) or forget the device and try pairing again.
- Inaccurate health data: Ensure the watch is worn snugly on your wrist, not too tight or too loose. Clean the sensor on the back of the watch.
- App not syncing data: Check your phone's internet connection. Ensure the Qifit app has necessary permissions enabled in your phone's settings. Restart the app.
- Short battery life: Reduce screen brightness, disable unnecessary notifications, or turn off Always-on display. Ensure background apps on the watch are closed.
If you encounter persistent issues not covered here, please refer to the Qifit app's help section or contact customer support.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | H15 ultra |
| Screen | 2.04" Ltpo AMOLED Full HD, 425*518 resolution, 90Hz refresh rate |
| CPU | A16 |
| Storage | RAM 128M + ROM 4GB |
| Dimensions | L49*43*14mm (Shell: 49mm 1:1 Titanium alloy case) |
| Strap | Standard silicone, suitable for 44/45/49mm straps |
| Battery | 450mAh Lithium-ion polymer battery |
| Charging | Wireless magnetic charging |
| Bluetooth | 5.0 |
| Compatibility | Android 5.0+, iOS 8.0+ |
| App | Qifit |
| Water Resistance | 5ATM Waterproof |
| Product Dimensions (Package) | 4.72 x 2.36 x 0.79 inches; 1 Pounds |
| Manufacturer | T2K |
7. Warranty and Support
Warranty information for the HK10 Ultra 3 Smart Watch is typically provided with your purchase documentation or can be found on the manufacturer's official website. Please retain your proof of purchase for any warranty claims.
For technical support, troubleshooting assistance, or further inquiries, please refer to the help section within the Qifit application or contact the product manufacturer directly through their official support channels.





