1. Product Overview
The TIMU S90 Smartwatch is designed to enhance your daily life with advanced health monitoring, extensive sports tracking, and convenient communication features. This manual provides essential information for setting up and operating your device.

Figure 1: TIMU S90 Smartwatch overview.
2. What's in the Box
Upon opening your TIMU S90 Smartwatch package, you should find the following items:
- 1 x TIMU S90 Smartwatch
- 1 x Charging Cable
- 1 x User Manual
Video 1: Demonstration of smartwatch unboxing and initial setup. This video illustrates general smartwatch functionality and may not depict the exact S90 model.
3. Setup
3.1 Charging the Smartwatch
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) or a computer's USB port.

Figure 2: The smartwatch connected to its magnetic charging cable, illustrating the charging process and battery life.
3.2 App Installation and Pairing
- Scan the QR code provided in the manual or on the watch screen to download the companion app (e.g., FitCloudPro).
- Install the app on your smartphone (compatible with Android and iOS).
- Open the app and follow the on-screen instructions to create an account and set up your profile.
- Enable Bluetooth on your smartphone.
- In the app, search for your TIMU S90 Smartwatch and select it to pair. Confirm the pairing request on both your phone and the smartwatch.
4. Operating the Smartwatch
4.1 Basic Navigation
The TIMU S90 Smartwatch features a 1.45-inch HD touchscreen. Swipe left, right, up, or down to access different functions and menus. Use the physical buttons for quick access to specific features or to return to the home screen.
4.2 Call Functionality
With Bluetooth 5.3, the smartwatch supports making and receiving calls directly from your wrist. Ensure your watch is paired with your phone and Bluetooth calling is enabled in the app settings.
- Making Calls: Access the dial pad or contacts list on your watch to initiate a call.
- Receiving Calls: Answer or reject incoming calls directly from the watch screen.

Figure 3: The smartwatch's interface for making and answering calls, showing integration with a smartphone.
4.3 Notifications
Receive real-time message notifications from various social media applications directly on your smartwatch. Configure which app notifications you wish to receive through the companion app settings.

Figure 4: The smartwatch showing message notifications and the voice assistant feature for convenient interaction.
4.4 Health Monitoring
The TIMU S90 Smartwatch provides 24/7 health monitoring features to help you stay informed about your well-being.
- Heart Rate Monitoring: Tracks your heart rate continuously throughout the day.
- Blood Oxygen Monitoring: Measures your blood oxygen saturation levels.
- Sleep Monitoring: Analyzes your sleep patterns, including deep sleep, light sleep, and wake-up times.

Figure 5: Health monitoring features of the smartwatch, including heart rate, blood oxygen, and blood pressure tracking.

Figure 6: Sleep monitoring interface on the smartwatch, showing total sleep, deep sleep, and light sleep duration.
4.5 Sports Modes
The smartwatch supports over 115 sports modes, allowing you to track various activities and monitor your performance in real-time. Data such as calories burned, distance, and steps are recorded and can be viewed in the app.

Figure 7: Overview of the 114+ sports modes available on the smartwatch, with icons representing different activities.

Figure 8: Activity monitoring interface, showing cycling data including calories, distance, and steps, along with a route map.
4.6 Customization
Personalize your smartwatch experience with over 200 unique customization options, including multiple watch faces and DIY customization features through the app.

Figure 9: Watch face customization options, including pre-set designs and the ability to create custom watch faces using personal images.
4.7 Other Features
- Weather Forecast: Get real-time weather updates directly on your wrist.
- Music Control: Control music playback on your smartphone.
- Find Phone: Locate your misplaced smartphone by triggering an alarm from your watch.
- Voice Assistant: Use voice commands for various tasks.
- Flashlight: Utilize the built-in flashlight feature.
5. Maintenance
5.1 Water Resistance
The TIMU S90 Smartwatch is IP68 waterproof, 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, including hand washing and light rain, but not recommended for hot showers, saunas, or diving.

Figure 10: The smartwatch demonstrating its IP68 water resistance, suitable for various outdoor conditions.
5.2 Cleaning
Regularly clean your smartwatch and strap to prevent skin irritation and maintain optimal performance. Use a soft, damp cloth to wipe the device. Avoid using harsh chemicals or abrasive materials.
5.3 Battery Care
To prolong battery life, avoid extreme temperatures and fully charge the device before it completely drains. If the watch will not be used for an extended period, charge it to about 50% and store it in a cool, dry place.
6. Troubleshooting
- Device not turning on: Ensure the watch is fully charged. Connect it to the charger for at least 15 minutes.
- Cannot pair with smartphone: Make sure Bluetooth is enabled on your phone and the watch is within range. Restart both devices and try pairing again. Check if the app has necessary permissions.
- Notifications not received: Verify that app notifications are enabled in both your phone's settings and the smartwatch companion app. Ensure the app is running in the background.
- Inaccurate health data: Ensure the watch is worn snugly on your wrist, not too tight or too loose. Clean the sensors regularly. Note that smartwatch health data is for reference only and not for medical diagnosis.
- Short battery life: Reduce screen brightness, disable unnecessary notifications, and limit continuous heart rate monitoring to extend battery life.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | TIMU |
| Model Name | S90 |
| Screen Size | 1.48 Inches |
| Connectivity Technology | Bluetooth |
| Wireless Communication Standard | Bluetooth |
| Memory Capacity | 1 GB |
| Product Dimensions | 10 x 10 x 10 cm; 120 grams |
| Color | Phantom Black |
8. Warranty and Support
For warranty information and customer support, please refer to the warranty card included in your product packaging or contact TIMU customer service through their official website. Keep your purchase receipt as proof of purchase for any warranty claims.




