Introduction
The Amazfit T-Rex Ultra 2 is a rugged smartwatch designed for demanding outdoor environments. It features a durable Grade 5 Titanium body, a sapphire glass screen, and an ultra-bright AMOLED display. This manual provides detailed instructions to help you get the most out of your device, covering its advanced navigation capabilities, comprehensive health monitoring, and extensive sports modes.
Package Contents
- Amazfit T-Rex Ultra 2 Smartwatch
- Magnetic Charging Base (USB Type-C compatible, cable not included)
- User Manual
Rugged Design and Display
The T-Rex Ultra 2 is constructed with a Grade 5 Titanium body and a sapphire glass screen, designed to withstand unpredictable impacts, wear, and extreme conditions. Its vibrant 1.5-inch AMOLED display ensures clear visibility even under direct sunlight.
Image: Close-up of the Amazfit T-Rex Ultra 2 showcasing its Grade 5 Titanium body and sapphire glass screen.
Image: The Amazfit T-Rex Ultra 2 displaying its vibrant 1.5-inch AMOLED screen in an outdoor setting.
Advanced Navigation and Mapping
The smartwatch includes full-color preloaded base maps and supports intelligent route planning directly from the watch. It offers automatic rerouting if you deviate from your planned path. Detailed contour maps and ski resort maps can also be downloaded.
Image: The Amazfit T-Rex Ultra 2 showing a full-color preloaded map with navigation.
Utilize the Points of Interest (POI) search to locate important landmarks, water sources, or shelters. Checkpoint alerts provide timely notifications as you approach key points on your route, and tactical tools like the barometer and storm warnings help you stay informed about environmental changes.
Image: The Amazfit T-Rex Ultra 2 showing a screen with checkpoint alerts and tactical tool information.
Built-in Two-Color Flashlight
The watch features a built-in two-color LED flashlight for visibility in low-light conditions or emergencies. It offers white light for general illumination and a green light option, which can be beneficial for maintaining night vision. A Boost Mode provides a short burst of enhanced brightness, and an SOS signal is available for emergencies.
Image: The Amazfit T-Rex Ultra 2 with its built-in flashlight illuminated, held by a gloved hand in a dark environment.
Extended Battery Life
The Amazfit T-Rex Ultra 2 is equipped with an 870 mAh battery, providing up to 30 days of typical use, 15 days with heavy use, and 10 days with the Always-On Display (AOD) enabled. For GPS tracking, it offers up to 50 hours in accurate GPS mode, 90 hours in power-saving GPS mode, and up to 177 hours in Max GPS battery life. It also performs well in low temperatures, offering up to 40 hours with GPS on and 32 days with GPS off.
Image: The Amazfit T-Rex Ultra 2 watch face showing battery percentage and date, with a large "30 Days" graphic indicating long battery life.
Water Resistance and Diving Certification
With 10 ATM water resistance, the T-Rex Ultra 2 is suitable for recreational dives up to 45 meters below the surface. It holds dual diving certifications (Diving ISO 6425:2018, SGS:SUER250900132071 and Diving EN13319:2000, SGS:SZE250900791701), making it a reliable companion for water sports enthusiasts.
Image: The Amazfit T-Rex Ultra 2 partially submerged in water, demonstrating its water resistance.
Workout Modes and Health Monitoring
The watch supports over 180 workout modes, including hiking, skiing, mountaineering, strength training, and hybrid training. It provides 24/7 health monitoring for heart rate, sleep, stress, and blood-oxygen levels. The BioCharge™ feature tracks energy levels based on workouts and stress.
Image: The Amazfit T-Rex Ultra 2 displaying various workout modes on its screen.
With a single tap, you can test four key health metrics (heart rate, stress level, blood-oxygen, and breathing rate) in just 45 seconds. The Zepp Coach™ offers personalized AI-generated training programs, including plans for 5K, 10K, half, and full marathons, which adapt based on your performance and recovery.
Image: The Amazfit T-Rex Ultra 2 showing a screen with four health metrics: heart rate, SpO2, and stress.
Image: The Amazfit T-Rex Ultra 2 displaying a Zepp Coach training plan on its screen, with a person hiking in the background.
Connectivity and Smart Features
The smartwatch is compatible with both Android and iOS devices. It features a built-in speaker and microphone, allowing you to take Bluetooth calls and use voice commands via Zepp Flow for replying to messages. You can also connect to various Bluetooth peripherals such as heart rate belts, cadence meters, and power meters.
Image: The Amazfit T-Rex Ultra 2 displaying a voice command interface, highlighting its built-in speaker and microphone.
Image: The Amazfit T-Rex Ultra 2 showing a screen indicating connection to external Bluetooth devices like a heart rate belt and cadence sensor.
Setup Guide
1. Charging the Device
Connect the magnetic charging base to a USB power source. Align the charging pins of the watch with the magnetic charging base until they snap into place. The watch display will indicate charging status. Ensure the watch is fully charged before initial use.
2. Pairing with Your Smartphone
- Download the Zepp App from the App Store (iOS) or Google Play Store (Android).
- Open the Zepp App and create an account or log in.
- Follow the on-screen instructions in the app to pair your Amazfit T-Rex Ultra 2. This typically involves scanning a QR code displayed on the watch or manually selecting the device from a list.
- Ensure Bluetooth is enabled on your smartphone during the pairing process.
Operating Instructions
Basic Navigation
The Amazfit T-Rex Ultra 2 can be operated using its touchscreen and physical buttons. Swipe across the screen to navigate menus and access different functions. Use the 'UP', 'DOWN', 'SELECT', and 'BACK' buttons for precise control, especially during workouts or when wearing gloves.
Using the Flashlight
To activate the flashlight, access the quick settings menu. You can switch between white and green light modes. The green light is designed to minimize interference with night vision. A Boost Mode is available for increased brightness, and an SOS signal can be activated for emergencies.
Night Vision Goggle Mode
Activate the Night Vision Goggle Mode from the quick settings to significantly reduce screen brightness and adapt the display for use with night vision equipment, minimizing eye strain in low-light conditions.
GPS and Route Planning
The watch utilizes dual-band GPS for accurate positioning. You can plan point-to-point routes directly on the watch or import routes from the Zepp App. The watch will provide turn-by-turn navigation and automatically reroute if you stray from your path. Use the Points of Interest (POI) search to find specific locations.
Workout Features
Select from over 180 sports modes. The Grade Adjusted Pace feature normalizes your pace data when running on varied terrain (uphill or downhill), providing a more consistent measure of effort. During workouts, you can long-press the bottom-left button to record voice memos, which will be geotagged and accessible in your workout summary in the Zepp App.
Health Monitoring
Access 24/7 monitoring for heart rate, blood-oxygen, stress, and sleep. Use the one-tap measurement to quickly check all four metrics. The Zepp Coach provides adaptive training guidance based on your activity data.
Bluetooth Calls and Voice Commands
When connected to your smartphone via Bluetooth, you can answer calls directly from your watch. Utilize Zepp Flow for voice commands to control watch functions or reply to messages (Android only).
Maintenance and Care
- Cleaning: Regularly clean your watch and strap with a soft, damp cloth. Avoid harsh chemicals or abrasive materials.
- Water Exposure: While water-resistant up to 10 ATM, it is recommended to rinse the watch with fresh water after exposure to saltwater or chlorinated water.
- 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. Avoid extreme temperatures.
Troubleshooting
- Watch Not Turning On: Ensure the watch is fully charged. Connect it to the charging base for at least 30 minutes.
- Pairing Issues: Make sure Bluetooth is enabled on your phone and the watch is within range. Restart both the watch and your phone, then try pairing again through the Zepp App.
- GPS Inaccuracy: Ensure you are in an open area with a clear view of the sky. Allow the watch sufficient time to acquire a GPS signal before starting an activity.
- Heart Rate Sensor Inaccuracy: Ensure the watch is worn snugly on your wrist, not too tight or too loose. Clean the sensor regularly. For high-intensity activities, an external heart rate monitor may provide more consistent data.
- Navigation Route Issues: If offline route creation generates unexpected paths, verify the map data in the Zepp App. Ensure you have downloaded the most detailed maps for your area.
- Display Not Responding: Try restarting the watch by long-pressing the power button. If unresponsive, allow the battery to fully drain and then recharge.
Specifications
| Brand | Amazfit |
| Model Number | A2550 |
| Display | 1.5 Inches Sapphire AMOLED |
| Body Material | Grade 5 Titanium |
| Operating System | Zepp OS |
| Connectivity | Bluetooth, Dual-Band GPS (Built-in) |
| Water Resistance | 10 ATM (up to 45m for recreational dives) |
| Battery Capacity | 870 mAh |
| Typical Battery Life | Up to 30 Days |
| GPS Battery Life (Accurate Mode) | Up to 50 Hours |
| Internal Storage | 64 GB |
| Item Weight | 2.4 ounces |
| Dimensions | 6.77 x 3.6 x 1.9 inches (Package) |
| Human Interface Input | Buttons, Touchscreen |
Warranty and Support
For detailed warranty information and customer support, please refer to the official Amazfit website or the warranty card included with your product. You can also find additional resources and FAQs within the Zepp App.