1. Introduction
This manual provides essential instructions for setting up, operating, and maintaining your Tiwain ZK65 Military Smart Watch. Please read this guide thoroughly to ensure proper usage and to maximize the device's features.

Image 1.1: Tiwain ZK65 Military Smart Watch showcasing its design and flashlight function.
2. What's in the Box
Verify that all items are present in your product packaging:
- Watch
- Strap
- Charging cable
- User manual (this document)
3. Setup
3.1 Charging the Device
Before first use, fully charge your smart watch. Connect the magnetic charging cable to the charging contacts on the back of the watch and plug the USB end into a standard USB power adapter (not included).
- Charging Time: Approximately 2 hours for a full charge.
- Battery Life: Up to 7-10 days of typical use, 30 days standby.

Image 3.1: Illustration of the charging process and battery performance.
3.2 App Download and Pairing
To unlock all features, download the companion app, FitCloudPro, from your smartphone's app store (iOS App Store or Google Play Store).
- Scan the QR code in the watch's manual or search for "FitCloudPro" in your app store.
- Install and open the app.
- Enable Bluetooth on your smartphone.
- In the FitCloudPro app, navigate to the 'Device' section and select 'Add Device'.
- Select 'ZK65' from the list of available devices to pair.
- Follow any on-screen prompts to complete the pairing process.
The watch is compatible with iOS 8.0+ and Android 4.4+ smartphones.

Image 3.2: Smartwatch features including call handling, notifications, and phone compatibility.
4. Operating Instructions
4.1 Basic Navigation
- Touchscreen: Swipe left/right, up/down, and tap to navigate menus and select options.
- Side Buttons: The 'POWER' button typically serves as a home/back button and can activate the flashlight. Other buttons may offer quick access to sports modes or other functions.
4.2 Making and Answering Calls
Once paired via Bluetooth, you can make and answer calls directly from your watch.
- To answer a call: Tap the green phone icon on the watch screen.
- To make a call: Access the 'Dial' or 'Contacts' function on your watch.

Image 4.1: Visual guide for Bluetooth calls and receiving notifications on the smartwatch.
4.3 Notifications
Receive messages and app notifications directly on your wrist. Ensure notification permissions are enabled in the FitCloudPro app and your phone's settings.
4.4 Flashlight Function
The watch includes a built-in LED flashlight. Activate it with a quick press of the designated side button (often the 'POWER' button) or through the watch's menu.
4.5 Sport Modes
The watch supports over 170 sport modes. Select your desired activity to track metrics such as steps, distance, calories, and heart rate.
- Access 'Sport Modes' from the main menu.
- Choose your activity (e.g., walking, running, cycling).
- Start your workout; the watch will begin tracking.

Image 4.2: Overview of the 170+ sport modes and their tracking capabilities.
4.6 Health Monitoring
Monitor your health metrics in real-time:
- Heart Rate: Continuous or on-demand heart rate measurement.
- Blood Oxygen (SpO2): Measures blood oxygen saturation levels.
- Blood Pressure: Provides estimated blood pressure readings.
- Sleep Tracking: Analyzes sleep patterns, including light, deep, and REM sleep stages.

Image 4.3: Health monitoring features including heart rate, blood pressure, and blood oxygen.

Image 4.4: Detailed sleep analysis provided by the smartwatch.
4.7 Customizing Watch Faces
Personalize your watch with various pre-installed watch faces or create custom ones using your photos via the FitCloudPro app.
4.8 Additional Functions
The watch includes other practical tools such as a calculator, weather display, 'Find Phone' feature, alarm clock, music control, remote camera control, and an AI voice assistant.

Image 4.5: Overview of AMOLED screen capabilities and various practical functions.

Image 4.6: Your wrist-sized toolbox: calculator, weather, find phone, and alarm.
5. Maintenance
5.1 Waterproofing (IP68)
The Tiwain ZK65 Smart Watch has an IP68 waterproof rating, meaning it is resistant to dust and can withstand immersion in water up to 1.5 meters for 30 minutes. It is suitable for daily use and light water activities like swimming.
Important Note:
- Not recommended for showering, hot baths, or saunas, as steam and hot water can compromise the seals.
- Avoid exposure to saltwater or chlorinated water for extended periods. Always rinse with fresh water and dry thoroughly after exposure to such environments.

Image 5.1: The smartwatch demonstrating its IP68 waterproof capability during swimming.

Image 5.2: Details on IPX8 waterproofing, salt-spray resistance, and avoiding chlorine damage.
5.2 Cleaning
Wipe the watch and strap regularly with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials.
5.3 Battery Care
To prolong battery life, avoid extreme temperatures and do not leave the watch fully discharged for extended periods.
6. Troubleshooting
- Watch not turning on: Ensure the watch is fully charged. Connect it to the charging cable and a power source.
- Cannot pair with smartphone:
- Ensure Bluetooth is enabled on your phone.
- Make sure the watch is within range of your phone.
- Restart both the watch and your phone.
- Check if the FitCloudPro app has necessary permissions.
- Inaccurate weather/data sync: If weather or other data appears inaccurate, try disconnecting and reconnecting the 'Weather reports' option within the FitCloudPro app's device settings. Ensure the app is running in the background.
- Notifications not appearing: Verify that notification permissions are granted to the FitCloudPro app in your phone's settings and that notifications are enabled within the app.
- Screen not waking up with wrist raise: Check the 'Raise to Wake' setting in the FitCloudPro app. If enabled and still not working, a button press may be required.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | ZK65 Smart watch |
| Screen Size | 1.43 Inches AMOLED |
| Battery Capacity | 530 mAh Lithium Polymer |
| Connectivity | Bluetooth |
| Operating System Compatibility | iOS 8.0+ / Android 4.4+ |
| Waterproof Rating | IP68 |
| Memory Storage Capacity | 256 MB |
| RAM Memory Installed Size | 256 GB |
| Item Weight | 150 Grams (5.3 ounces) |
| Special Features | Activity Tracker, Alarm Clock, Flashlight, Calls, Messages, 170+ Sports Modes, Heart Rate, Blood Pressure, Blood Oxygen Monitor, Sleep Tracker, DIY Watch Face, AI Voice, Music Control |

Image 7.1: The 1.43-inch AMOLED screen provides a superior visual experience.
8. Warranty and Support
Tiwain offers a 12-month money-back guarantee or free replacement service for any product issues. For support or warranty claims, please contact the seller or manufacturer through your purchase platform.
