---
product_id: 724431571
title: "Amazfit T-Rex Ultra Smart Watch 47mm for Men, 20-Day Battery Life, 30m Freediving, Dual-Band GPS, Mud-Resistant, 100m Water-Resistant, Military-Grade Outdoor Sports Watch, for Android iPhone, Black"
brand: "amazfit"
price: "2906₫"
currency: VND
in_stock: false
url: https://www.desertcart.vn/products/724431571-amazfit-t-rex-ultra-smart-watch-47mm-for-men-20
store_origin: VN
region: Vietnam
---

# 30m freediving support 20-day battery life Dual-band GPS precision Amazfit T-Rex Ultra Smart Watch 47mm for Men, 20-Day Battery Life, 30m Freediving, Dual-Band GPS, Mud-Resistant, 100m Water-Resistant, Military-Grade Outdoor Sports Watch, for Android iPhone, Black

**Brand:** amazfit
**Price:** 2906₫
**Availability:** ❌ Out of Stock

## Summary

> ⌚️ Adventure-Ready Tech That Keeps You Ahead of the Pack

## Quick Answers

- **What is this?** Amazfit T-Rex Ultra Smart Watch 47mm for Men, 20-Day Battery Life, 30m Freediving, Dual-Band GPS, Mud-Resistant, 100m Water-Resistant, Military-Grade Outdoor Sports Watch, for Android iPhone, Black by amazfit
- **How much does it cost?** 2906₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/724431571-amazfit-t-rex-ultra-smart-watch-47mm-for-men-20)

## Best For

- amazfit enthusiasts

## Why This Product

- Trusted amazfit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dive Deep, Stay Connected:** 30m freediving and 100m water resistance means your watch is as adventurous as you are—surf, swim, or explore without limits.
- • **Endurance That Outlasts Your Hustle:** Unmatched 20-day battery life keeps you powered through every meeting, workout, and weekend escape.
- • **Seamless Sync with Your Digital Life:** Connect effortlessly to Android/iOS, fitness apps like Strava and Apple Health, plus Bluetooth 5.0 for music, heart rate belts, and GoPro control.
- • **Pinpoint Your Path with Dual-Band GPS:** L1 & L5 dual-band GPS plus six satellite systems deliver ultra-precise navigation for your urban commutes and wild trails alike.
- • **Military-Grade Durability Meets Sleek Design:** 316L stainless steel and mud-resistant build withstands extreme temps (-30℃ to 70℃) and rugged environments, while the 1.3” AMOLED display shines bright at 1000 nits.

## Overview

The Amazfit T-Rex Ultra is a military-grade outdoor smartwatch featuring a robust 316L stainless steel and mud-resistant design, a vibrant 1.3-inch AMOLED display with 1000 nits brightness, and a powerhouse 20-day battery life. It supports 30m freediving and 100m water resistance, dual-band GPS with six satellite systems for precise navigation, and operates reliably in extreme temperatures from -30℃ to 70℃. Compatible with Android and iOS, it syncs with popular fitness apps and Bluetooth devices, making it the ultimate companion for professionals who demand durability, precision, and connectivity in every adventure.

## Description

Notes: 1)Indoor positioning services are not supported. Positioning speed and accuracy may be affected by the surrounding environment. The number of satellites connected to simultaneously, and specific satellite connections, may depend on your location. 2)The Amazfit T-Rex Ultra can be used as a map browsing tool to import OSM map files. Display of offline maps is only compatible with sports modes which support GPS positioning. The downloaded offline map must match your real location to be displayed, and a route file must be imported for navigation – it's not possible to choose a point on the offline map for navigation. 3) Adidas Running requires Zepp App version 7.1.0 or higher. Strava, Relive, and adidas Running availability may vary depending on your country or region. Apple Health is only available on iOS devices, and Google Fit is only available on Android devices. 4) The battery life may vary according to the settings, operation conditions and other factors. So the actual result may differ from the laboratory data. 5) This product and the Zepp App are not medical devices and cannot be used for medical purposes, or as basis for diagnosis of any medical condition. 6)The material used for the packaging box is 100% environmentally friendly, with naturally degradable materials including mineral-free inks and anodized aluminum used in the bronzing process, as well as naturally degradable packaging materials for plastic. 7)Call Quick Reply is only supported by Android devices with Zepp App version 6.10.0 or higher version installed.

## Features

- Stainless Steel & Mud-resistant Design: Constructed with super-strong 316L stainless steel and a patented mud-resistant bridge and buttons, Amazfit T-Rex Ultra is built to withstand any kind of action. The smartwatch's HD AMOLED display can reach a peak brightness of 1,000 nits for ultra-clear visibility in any environment. Adjustable lugs ensure maximum comfort for the entirety of your epic adventures, and you can enjoy ultimate control with a responsive touchscreen and four convenient buttons.
- 30m Freediving Support: As the ultimate multi-environment outdoor smartwatch, the Amazfit T-Rex Ultra supports indoor and outdoor freediving to a depth of up to 30 meters. It can also resist the equivalent of up to 100 meters’ water pressure, making it perfect for all your swimming, surfing and kitesurfing activities.
- Dual-band GPS & Route Navigation: The smartwatch utilizes both L1 and L5 signals for incredibly precise dual-band GPS positioning, and supports six satellite systems for greater global coverage. Import a route file to the watch along with a corresponding Offline Map, and navigate with professional-level environmental understanding.
- Mighty 20-day Battery Life: Experience energy beyond extinction, with battery life that can last a super-long 20 days. The sports watch also introduces a new Endurance GPS battery mode for those who love to lose themselves in nature for long periods of time, plus a new Automatic GPS battery mode which intelligently adjusts GPS settings based on signal strength, to help conserve power.
- -30℃ Ultra-low Temperature Operation: Built for the brave, the watch is tough enough to be operated in extreme temperatures as low as -30℃, thanks to its specially designed circuitry system and battery. So not only can the watch body physically resist the cold, but you can keep using the watch's functions as the conditions get more intense.
- Military-grade Toughness: Resistant to extreme 70℃ heat and -40℃ cold - as well as humidity, shock and more - this outdoor smartwatch has proved its toughness by passing 15 military-grade tests. Understand your surroundings better with the built-in compass and barometer, along with environmental reminders and a host of other useful features.
- Sync To Your Favorite Health Apps: Share completed routes and activity data from your legendary adventures with fitness communities like Strava, adidas Running, Komoot and Relive, along with smartphone apps like Apple Health and Google Fit.
- Ready for Action Shots: Thanks to the powerful Bluetooth connectivity the Amazfit T-Rex Ultra supports music playback, heart rate belts and cycling power meters and can even connect to your GoPro action camera. Connection: WLAN 2.4GHz, Bluetooth 5.0 BLE.
- Prepared for Any Adventure: Brave your journey with the T-Rex Ultra smartwatch adventure features including - Compass, Air Pressure, Altitude, Altitude SpO₂, Sunrise / Sunset, Ocean Tides, Storm Warning Alerts, and Freediving Water Temperature
- Supported Devices: Compatible with Android 7.0 and above, iOS 12.0 and above devices.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Amazfit |
| Manufacturer | Amazfit |
| Model | A2142-Black |
| Model Name | T Rex Ultra |
| Product Dimensions | 4.72 x 4.72 x 1.35 cm; 308 g |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Item model number | A2142-Black |
| Memory Storage Capacity | 2.3 GB |
| Operating System | Zepp OS |
| Resolution | 360 x 360 |
| Compatible Devices | Android 7.0 and above, iOS 14.0 and above |
| Special Features | 30m Freediving Support, Altitude Assistant, Mud-resistant, Ultra-low Temperature Operation |
| Mounting Hardware | Magnetic Charging Cable, Smart Watch, User Manual |
| Number of items | 1 |
| Display Technology | AMOLED |
| Standing screen display size | 1.3 Inches |
| Display Type | AMOLED |
| Colour Screen | Yes |
| Wattage | 1.05 Watts |
| Power Source | Battery-Powered |
| Battery Description | lithium-ion |
| Battery Average Life | 20 Days |
| Batteries Included | Yes |
| Batteries Required | Yes |
| Battery Capacity | 700 |
| Battery cell composition | Lithium Polymer |
| Wireless Type | Bluetooth |
| Connector Type | Bluetooth |
| Device interface - primary | Buttons, Touchscreen |
| Mounting Type | Wrist Mount |
| Includes Rechargeable Battery | Yes |
| Manufacturer | Amazfit |
| Item Weight | 308 g |

## Product Details

- **Operating System:** Zepp OS
- **Memory Storage Capacity:** 2.3 GB
- **Special Feature:** 30m Freediving Support, Altitude Assistant, Mud-resistant, Ultra-low Temperature Operation
- **Battery Capacity:** 700
- **Connectivity Technology:** Bluetooth

## Images

![Amazfit T-Rex Ultra Smart Watch 47mm for Men, 20-Day Battery Life, 30m Freediving, Dual-Band GPS, Mud-Resistant, 100m Water-Resistant, Military-Grade Outdoor Sports Watch, for Android iPhone, Black - Image 1](https://m.media-amazon.com/images/I/71w6yIZ4i4L.jpg)
![Amazfit T-Rex Ultra Smart Watch 47mm for Men, 20-Day Battery Life, 30m Freediving, Dual-Band GPS, Mud-Resistant, 100m Water-Resistant, Military-Grade Outdoor Sports Watch, for Android iPhone, Black - Image 2](https://m.media-amazon.com/images/I/61W9LjmjyML.jpg)
![Amazfit T-Rex Ultra Smart Watch 47mm for Men, 20-Day Battery Life, 30m Freediving, Dual-Band GPS, Mud-Resistant, 100m Water-Resistant, Military-Grade Outdoor Sports Watch, for Android iPhone, Black - Image 3](https://m.media-amazon.com/images/I/71dZ6cw3E4L.jpg)
![Amazfit T-Rex Ultra Smart Watch 47mm for Men, 20-Day Battery Life, 30m Freediving, Dual-Band GPS, Mud-Resistant, 100m Water-Resistant, Military-Grade Outdoor Sports Watch, for Android iPhone, Black - Image 4](https://m.media-amazon.com/images/I/61uRvOpVgQL.jpg)
![Amazfit T-Rex Ultra Smart Watch 47mm for Men, 20-Day Battery Life, 30m Freediving, Dual-Band GPS, Mud-Resistant, 100m Water-Resistant, Military-Grade Outdoor Sports Watch, for Android iPhone, Black - Image 5](https://m.media-amazon.com/images/I/81RjOq1iEpL.jpg)

## Available Options

This product comes in different **Colour, Style Name** options.

## Questions & Answers

**Q: So; first on the market was the amazfit pro; then cames out the amazfit pro-2 and now the newest is the amazfit pro ultra?**
A: The very first model for the T-Rex line is the T-Rex and in the order after are T-Rex Pro, T-Rex 2, and T-Rex Ultra. 

Michael | Amazfit Support

**Q: Any reviews about the pro ultra? i only found from the pro and the pro-2. the ultra price is twice of the pro 2 so i want to read opinions from users**
A: I like it better than my 300 Dollar watch but it has no sound, the watch has a listen to music option but you can't.

**Q: Que diferencia hay , entre el t rex pro 2 y este reloj ??**
A: Eso no lo sé pero son los mismos en la descripción del reloj está está ha salido muy bueno lo mejor es la duración de la batería

**Q: Why is the t-rex ultra so expensive? the additional build quality and minor features simply don't justify the high expense**
A: It's a bit more rugged and capable of tougher use. The price point is really up to you.  I went with the T-Rex 2 to get to a price point I thought was more feasible.

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-22*