Introduction
This manual provides essential instructions for setting up, operating, and maintaining your PTHTECHUS 4G Kids Smart Watch. Designed for children aged 5-12, this smartwatch offers communication, safety, and entertainment features, including 4G connectivity, GPS tracking, video calls, and an SOS function. Please read this manual thoroughly before use to ensure proper functionality and safety.
Product Overview
The PTHTECHUS 4G Kids Smart Watch is equipped with a range of features to keep children connected and safe. Key functionalities include:
- 4G Connectivity: Enables video calls, voice chat, and messaging.
- GPS+WiFi+LBS Positioning: Provides real-time location tracking for enhanced safety.
- SOS Function: Allows children to quickly alert pre-set contacts in emergencies.
- Do Not Disturb Mode: Configurable to prevent distractions during school or specific times.
- Multimedia Features: Includes a camera, music player, alarm clock, and various games.

Figure 1: PTHTECHUS 4G Kids Smart Watch (Black model) with additional band.
Setup Guide
1. SIM Card Installation
The smartwatch requires a 4G SIM card for full communication and tracking features. A free Smartwatch SIM card from SpeedTalk Mobile is included with your purchase. Follow these steps to install and activate it:
- Power Off the Watch: Ensure the smartwatch is completely turned off before inserting the SIM card.
- Locate SIM Slot: The SIM card slot is typically located on the side of the watch, often protected by a rubber plug or cover.
- Insert SIM Card: Carefully insert the activated SpeedTalk Mobile SIM card into the slot with the gold contacts facing upwards and the notched corner aligned correctly. Push until it clicks into place.
- Activate SIM Card: Visit the SpeedTalk Mobile website (as indicated on the SIM kit) to activate your SIM card. The included SIM offers 30 minutes calling, 30MB data, and 30 SMS free for one week.
- Power On: Once the SIM is installed and activated, power on your smartwatch.

Figure 2: Location of the SIM card slot on the smartwatch.
2. App Installation and Pairing
To manage the smartwatch and utilize its full features, parents need to download and pair it with a dedicated mobile application. The app allows for remote control, communication, and tracking.
- Download the App: Scan the QR code provided in the watch's packaging or search for the recommended app (e.g., "Wonlex" or similar, as per included instructions) on your smartphone's app store (iOS or Android).
- Register Account: Create a new account within the app using your email and a secure password.
- Bind the Watch: Follow the in-app instructions to bind your smartwatch to your account. This usually involves scanning a unique QR code displayed on the watch screen or entering its registration code.
- Configure Settings: Once paired, you can configure contacts, set up safety zones, and adjust other watch settings through the app.
3. Initial Charging
Before first use, fully charge the smartwatch for at least 4 hours to ensure optimal battery performance.

Figure 3: Smartwatch connected to its magnetic charging cable.
Operating Instructions
1. Basic Navigation
The smartwatch features a touchscreen interface. Swipe left/right or up/down to navigate through menus and tap icons to select functions.

Figure 4: Overview of available functions on the smartwatch screen.
2. Communication Features
- Video Call: Initiate video calls with approved contacts directly from the watch. The video call voice is clear, and there is no picture delay.
- Voice Chat & Messages: Send and receive voice messages and text messages with family members through the paired app.
- SOS Function: In an emergency, long-press the SOS button for 3 seconds to automatically dial pre-set emergency contacts.
- Unknown Call Rejection: The watch can be configured to reject calls from unknown numbers, ensuring your child only communicates with approved contacts.

Figure 5: Video call functionality on the smartwatch.

Figure 6: Activating the SOS emergency function.
3. Location Tracking (GPS+WiFi+LBS)
The smartwatch integrates WIFI, GPS, and LBS for accurate real-time positioning, providing triple security. Parents can view their child's location through the paired mobile app.

Figure 7: Real-time location tracking via GPS, WiFi, and LBS.
4. Do Not Disturb / Class Mode
To prevent distractions, parents can set up a "Do Not Disturb" mode for specific time periods (e.g., during school hours). In this mode, all functions except the SOS function are disabled.
5. Other Functions
The smartwatch includes various other features:
- Pedometer: Tracks steps taken.
- Camera & Photo Album: Allows children to take photos and view them.
- Music Player: Play music files stored on the watch.
- Alarm Clock: Set alarms for reminders.
- Games: Provides entertainment with built-in games.
- Bluetooth: For connectivity with other devices.
- Multilingual Support: Supports multiple languages.
Maintenance
- Charging: Use the provided magnetic charging cable. Connect it to a USB power source. The watch will display charging status.
- Cleaning: Wipe the watch screen and strap with a soft, dry cloth. Avoid harsh chemicals.
- Water Resistance: The watch is water-resistant but not suitable for swimming, diving, bathing, soaking in hot springs, or prolonged water exposure.
- Storage: Store the watch in a cool, dry place when not in use.
Troubleshooting
If you encounter any issues with your PTHTECHUS 4G Kids Smart Watch, please refer to the following common solutions:
- Watch Not Powering On: Ensure the watch is fully charged. Connect it to the charger and wait a few minutes before attempting to power it on again.
- No Network Signal: Verify that the SIM card is correctly inserted and activated. Check for network coverage in your area. Restart the watch.
- Inaccurate Location Tracking: Ensure the watch has a clear view of the sky for GPS signals. Check that Wi-Fi is enabled for improved indoor positioning.
- Cannot Make/Receive Calls: Confirm that the SIM card is active and has sufficient balance/plan. Ensure the contact numbers are correctly saved in the app and synced to the watch. Check if "Do Not Disturb" mode is active.
- App Connection Issues: Ensure your smartphone has a stable internet connection. Restart both the watch and the app. Re-pair the watch if necessary.
For further assistance, please contact SpeedTalk Mobile support (available 7 days a week) for SIM-related issues or the PTHTECHUS customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | PTHTECHUS |
| Model Number | 6047139c-ea23-47f2-af00-1dbd10ff695e |
| Color | 4G-Black |
| Operating System | Wear OS |
| Connectivity | 4G, Bluetooth, WiFi |
| Positioning | GPS, WiFi, LBS |
| Human Interface Input | Touchscreen |
| Item Weight | 3.84 ounces |
| Age Range | Kid (Recommended 5-12 years) |
Official Product Videos
Watch these official product videos for visual guides and demonstrations of the PTHTECHUS 4G Kids Smart Watch features.
4G Kids GPS Smartwatch Product Show
This video provides a comprehensive product show of the 4G Kids GPS Smartwatch, highlighting its design and various functionalities.
Watch this before buying the watch!
This video offers a detailed overview and demonstration of the smartwatch, covering key features and user experience aspects.
Warranty and Support
For any issues related to the included SIM card or its activation, please contact SpeedTalk Mobile support. Their team is available 7 days a week to assist you.
For product-related inquiries or technical support regarding the PTHTECHUS 4G Kids Smart Watch, please refer to the contact information provided in your product packaging or visit the official PTHTECHUS website.
WARNING: CHOKING HAZARD—Small parts. Not for children under 3 years. Manufacturer minimum age: 4 years.







