1. Introduction
This manual provides detailed instructions for the ZLKJ ZL-SW8 Smartwatch. Please read it thoroughly to ensure proper use and optimal performance of your device.
What's in the Box
- ZL-SW8 Smartwatch
- Magnetic Charging Cable
- User Manual

Image: The ZLKJ ZL-SW8 Smartwatch in Rose Gold, showcasing its round display and metallic mesh strap.
2. Setup
2.1 Initial Charging
Before first use, fully charge your smartwatch. Connect the magnetic charging cable to the charging points on the back of the watch and plug the USB end into a power adapter (not included).
2.2 App Installation and Pairing
- Download the "Da Fit" app from your smartphone's app store (compatible with Android and iOS).
- Open the Da Fit app and follow the on-screen instructions to create an account or log in.
- Enable Bluetooth on your smartphone.
- In the Da Fit app, search for your ZL-SW8 smartwatch and select it to pair.
- Confirm the pairing request on both your phone and the smartwatch.
3. Operating Instructions
3.1 Basic Navigation
- Touchscreen: Swipe left/right, up/down to navigate menus and access features. Tap to select.
- Side Buttons: The watch features multiple side buttons. Refer to the product diagram for specific functions (e.g., Power, GPS, GPT).

Image: Diagram illustrating the dimensions and button layout of the ZLKJ ZL-SW8 Smartwatch, including labels for GPS, Power, and GPT buttons.
3.2 Bluetooth Calling
Once paired with your smartphone, you can make and receive calls directly from your wrist using the built-in microphone and speaker.
- To answer an incoming call: Tap the green answer icon on the watch screen.
- To reject an incoming call: Tap the red reject icon on the watch screen.
- To make a call: Access the dialer or contacts through the watch interface.

Image: A visual representation of the smartwatch displaying an incoming call and message notifications, highlighting its Bluetooth calling and notification features.
3.3 AI Voice Assistant
The ZL-SW8 includes an AI voice assistant. Activate it through the watch interface to control music, check weather, set alarms, and more using voice commands. This feature supports the ChatGPT function when connected to the app.

Image: The ZL-SW8 smartwatch displaying an interaction with its AI voice assistant, demonstrating its ability to answer questions via the ChatGPT function.
3.4 GPS Functionality
The built-in GPS allows for phone-free tracking of outdoor activities. It records your route, distance, and other metrics in real-time. The watch supports dual-frequency five-star tracking for precise positioning.

Image: The ZL-SW8 smartwatch showcasing its GPS tracking capabilities with a map display, alongside images demonstrating its tactical flashlight function.
3.5 Sport Modes
The smartwatch offers 107 sport modes to track various physical activities. Select the appropriate mode before starting your workout to accurately monitor steps, calories burned, distance, and duration.

Image: The ZL-SW8 smartwatch interface showing icons for over 100 sports modes, with background images of people engaging in various outdoor activities like cycling, hiking, and swimming.
3.6 Notifications
Receive real-time notifications for calls, messages, and various app alerts directly on your watch. Customize notification settings through the Da Fit app.
3.7 Custom Watch Faces
Personalize your smartwatch with customizable watch faces. Choose from over 100 pre-installed styles or upload your own photos via the Da Fit app.

Image: The ZL-SW8 smartwatch displaying multiple customizable watch faces, including digital and analog styles, and options to upload personal photos.
3.8 Tactical Flashlight and SOS Function
The watch includes a tactical flashlight feature for illuminating dark areas. It also has an SOS function (three long and three short presses of the power button in flashing state) for emergency signaling.
4. Features Overview
- Display: 1.39-inch HD touchscreen with 360*360 pixel resolution.
- Waterproof Rating: 3ATM waterproof, suitable for swimming and rain exposure.
- Durability: Engineered for outdoor conditions, drop-resistant, corrosion-resistant, high-temperature resistant, and dust-proof.
- Compatibility: Works with Android (4.4 and above) and iOS (9 and above) devices.
- Health Monitoring: Includes step tracking, sleep tracking, and heart rate monitoring.
- Battery Life: Up to 30 days standby, 7-10 days typical use, 20 hours in GPS mode.
- Additional Functions: Music control, weather updates, alarm clock, do not disturb mode, power saving mode, phone finder, raise-to-wake function.

Image: Two ZL-SW8 smartwatches (Rose Gold and Black) highlighting military-grade drop resistance and 3ATM waterproof features, suitable for outdoor challenges.

Image: A person swimming while wearing the ZL-SW8 smartwatch, illustrating its IP68 waterproof capability for aquatic activities.
5. Maintenance
- Cleaning: Wipe the watch and strap regularly with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth and mild soap, then rinse and dry thoroughly.
- Water Resistance: The watch is 3ATM waterproof. It is suitable for splashes, rain, and swimming. Avoid hot water, saunas, or diving, as extreme temperatures and high-pressure water jets can compromise the seal.
- Charging: Ensure the charging contacts are clean and dry before charging to prevent corrosion.
- Storage: Store the watch in a cool, dry place when not in use.
6. Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Watch does not turn on | Low battery | Charge the watch for at least 30 minutes. |
| Cannot pair with phone | Bluetooth off, app issue, watch too far | Ensure Bluetooth is on, restart phone/watch, reinstall Da Fit app, keep devices close. |
| Inaccurate fitness tracking (steps, heart rate) | Improper fit, sensor obstruction, software glitch | Ensure watch is snug on wrist, clean sensors, restart watch, check for app updates. |
| Notifications not received | App permissions, Do Not Disturb mode, Bluetooth disconnected | Check Da Fit app notification settings, disable DND on watch/phone, ensure stable Bluetooth connection. |
| Short battery life | Frequent GPS use, high brightness, many notifications | Reduce screen brightness, limit background app refresh, use power-saving mode. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | ZL-SW8 |
| Screen Size | 1.39 Inches |
| Screen Resolution | 360*360 pixels |
| Operating System | RTOS |
| Memory Storage Capacity | 128 MB |
| RAM Memory Installed Size | 578 KB |
| Battery Capacity | 530 Milliamp Hours (Lithium Ion) |
| Connectivity Technology | Bluetooth |
| GPS | Built-in GPS (Dual-frequency five-star tracking) |
| Waterproof Rating | 3ATM |
| Compatible Devices | Android 4.4 and above, iOS 9 and above |
| Item Weight | 0.634 ounces |
| Wrist Strap Size | 150-260mm |
| Supported Languages | Chinese, English, French, Spanish, Multiple Languages |

Image: Three ZL-SW8 smartwatches (white, black, rose gold) illustrating key specifications: 1.39" HD display, precise GPS, and a 530 mAh large capacity battery.
8. Warranty and Support
ZLKJ provides comprehensive post-sale support for one year from the date of purchase. All watches undergo rigorous quality checks. For any issues or assistance, please contact our dedicated customer service team, available 24/7.
For further support, please refer to the contact information provided with your purchase or visit the official ZLKJ website.