Amazfit W1902US1N
Amazfit GTR Smartwatch User Manual
Model: W1902US1N | Brand: Amazfit
Introduction
The Amazfit GTR Smartwatch combines classic design with advanced features for a comprehensive health and fitness tracking experience. This manual provides essential information for setting up, operating, and maintaining your device.

Image: The Amazfit GTR Smartwatch, featuring a round black display and a brown leather strap, showcasing its elegant design.
Product Overview Video
Video: An official overview of the Amazfit GTR Smartwatch, highlighting its design, features, and various use cases. This video demonstrates the watch's aesthetic appeal and functional capabilities.
What's in the Box
- Amazfit GTR Smartwatch
- Charging Pod
- User Manual
Key Features
- Delicate and Elegant Design: Features a classic design with a 1.39” AMOLED display and a variety of watch faces.
- 12-Sports Modes: Includes smart sport tracking for 12 different activities such as running, cycling, swimming, and mountaineering.
- Full-Scale Heart-Rate Monitoring System: Integrated with BioTrackerTM PPG biological tracking optical sensor for advanced heart-rate monitoring.
- Ultra-Long Battery Life: Optimized power consumption provides up to 24 days of endurance.
- Water Resistant: Water resistant to a depth of 50 meters, supporting multiple swimming scenarios and data recording.

Image: The Amazfit GTR Smartwatch being worn, illustrating its elegant design suitable for both formal and active settings.
Setup Guide
1. Initial Charging
Before first use, fully charge your Amazfit GTR Smartwatch using the provided charging pod. Connect the charging pod to a USB power source. Align the watch with the magnetic contacts on the charging pod until it snaps into place and the charging indicator appears on the screen.
2. Download the Zepp App
The Amazfit GTR requires the Zepp app (formerly Amazfit app) for full functionality and data synchronization. Download the Zepp app from your smartphone's app store (Google Play Store for Android or Apple App Store for iOS).

Image: A smartphone displaying the Zepp app, which is essential for tracking fitness, sleep, and other lifestyle metrics from your Amazfit GTR.
3. Pairing Your Smartwatch
- Open the Zepp app on your smartphone and create an account or log in.
- Navigate to the "Profile" tab and tap "Add device" or the "+" icon.
- Select "Watch" and then "Amazfit GTR".
- Follow the on-screen instructions to scan the QR code displayed on your watch or select your watch from the list of nearby devices.
- Confirm the pairing request on both your watch and smartphone.
Operating Your Smartwatch
Basic Navigation
The Amazfit GTR features a responsive AMOLED touchscreen and two physical buttons for navigation. Swipe left/right or up/down on the screen to access different functions and widgets. The top button typically serves as a power/back button, while the bottom button can be customized for quick access to a specific function.

Image: The Amazfit GTR Smartwatch on a wrist, demonstrating its clear display and ease of viewing.
Heart Rate Monitoring
The watch continuously monitors your heart rate using its BioTrackerTM PPG optical sensor. You can view your real-time heart rate on the watch face or in the dedicated heart rate section. The Zepp app provides detailed historical data and analysis.

Image: A close-up of the Amazfit GTR's rear, highlighting the BioTracker PPG optical sensor with its active green light, indicating heart rate monitoring.
Sports Modes and GPS Tracking
The Amazfit GTR supports 12 different sports modes, including outdoor running, walking, cycling, swimming, and more. Select your desired activity from the watch's menu to start tracking. The built-in GPS+GLONASS ensures accurate route and distance tracking for outdoor activities.

Image: The Amazfit GTR screen showing icons representing its 12 sports modes, from running to swimming, indicating its versatile tracking capabilities.

Image: A person engaged in weightlifting, wearing the Amazfit GTR, demonstrating its use during strength training activities.
Notifications and Music Control
Receive smart notifications for calls, messages, and app alerts directly on your watch when connected to your smartphone. You can also control music playback on your phone from the watch, including play, pause, skip, and volume adjustments.
Water Resistance
The Amazfit GTR is water resistant up to 50 meters (5 ATM), making it suitable for swimming and other water-based activities. It can automatically recognize your swimming position and record relevant data like SWOLF, pace, and calorie consumption.

Image: The Amazfit GTR Smartwatch shown partially submerged in water, emphasizing its 5 ATM water resistance feature.
Sleep Tracking
The watch automatically tracks your sleep patterns, including deep sleep, light sleep, and awake times. View detailed sleep analysis in the Zepp app to understand and improve your sleep quality.

Image: A person sleeping with the Amazfit GTR Smartwatch on their wrist, demonstrating the watch's capability to track sleep patterns.
Maintenance
Cleaning Your Smartwatch
Regularly clean your watch and strap to prevent skin irritation and maintain device longevity. Use a soft, lint-free cloth to wipe the screen and body. For the strap, follow the manufacturer's recommendations based on the material (e.g., leather, silicone).
Battery Care
To maximize battery life, avoid exposing the watch to extreme temperatures. Charge the device using only the provided charging pod. While the Amazfit GTR boasts ultra-long battery life, regular charging habits can help preserve battery health over time.

Image: The Amazfit GTR Smartwatch highlighting its impressive 24-day battery life, a key feature for extended use.
Software Updates
Ensure your watch's firmware is up to date by checking for updates through the Zepp app. Software updates often include performance improvements, bug fixes, and new features.
Troubleshooting
Connectivity Issues
- Watch not connecting to phone: Ensure Bluetooth is enabled on your phone and the watch is within range. Restart both devices and try pairing again through the Zepp app.
- Notifications not syncing: Check app notification permissions in your phone's settings and within the Zepp app. Ensure the Zepp app is running in the background.
GPS Accuracy
For optimal GPS performance, ensure you are in an open outdoor area with a clear view of the sky. Allow the watch sufficient time to acquire a GPS signal before starting an activity.
Battery Draining Quickly
While the Amazfit GTR has excellent battery life, excessive use of GPS, continuous heart rate monitoring, or a large number of notifications can impact battery performance. Adjust settings in the Zepp app to optimize battery usage.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 1.18 x 1.57 x 0.5 inches |
| Item Weight | 0.1 ounces |
| Item Model Number | W1902US1N |
| Batteries | 1 Lithium Polymer batteries required (included) |
| Operating System | Amazfit OS |
| Wireless Communication | Bluetooth |
| Connectivity Technology | GPS |
| Special Features | Slim Fit |
| Display Technology | AMOLED |
| Human Interface Input | Touchscreen |
| Scanner Resolution | 454 x 454 |
| Form Factor | Watch |
| Color | Aluminum Alloy |
| Manufacturer | Amazfit |
| Date First Available | September 9, 2019 |
| Standing Screen Display Size | 1.39 Inches |
| Screen Size | 1.39 Inches |
| Battery Cell Composition | Lithium Ion |
| Shape | Round |

Image: A detailed view of the Amazfit GTR, emphasizing its lightweight construction (36g), slim profile (10.75mm), and vibrant 1.39-inch AMOLED display.
Warranty and Support
For detailed warranty information and customer support, please refer to the official Amazfit website or the documentation included with your product. A digital version of the user manual is available for download: