---
product_id: 657443238
title: "Amazfit T-Rex 3 Military Smart Watch 48mm, Fitness Watches with GPS (with Privacy), AI, Voice Control, Offline Maps, for Android or iPhone, 170 Sports Modes, 328ft Water-Resistant, Black"
brand: "amazfit"
price: "$4.09"
currency: USD
in_stock: false
reviews_count: 5
url: https://www.desertcart.us/products/657443238-amazfit-t-rex-3-military-smart-watch-48mm-fitness-watches
store_origin: US
region: United States of America
---

# 2000 nits AMOLED display 27-day battery life Dual-band GPS with 6 satellites Amazfit T-Rex 3 Military Smart Watch 48mm, Fitness Watches with GPS (with Privacy), AI, Voice Control, Offline Maps, for Android or iPhone, 170 Sports Modes, 328ft Water-Resistant, Black

**Brand:** amazfit
**Price:** $4.09
**Availability:** ❌ Out of Stock

## Summary

> 🦖 Rugged tech that outlasts your wildest adventures

## Quick Answers

- **What is this?** Amazfit T-Rex 3 Military Smart Watch 48mm, Fitness Watches with GPS (with Privacy), AI, Voice Control, Offline Maps, for Android or iPhone, 170 Sports Modes, 328ft Water-Resistant, Black by amazfit
- **How much does it cost?** $4.09 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/657443238-amazfit-t-rex-3-military-smart-watch-48mm-fitness-watches)

## 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

- • **Epic Battery Life:** Stay unplugged for up to 27 days or 180 hours in extended GPS mode.
- • **Vivid AMOLED Display:** Read your stats and maps clearly even under direct sunlight or in gloves.
- • **AI-Powered Smart Control:** Voice commands and AI training plans powered by GPT-4o keep you ahead of the pack.
- • **Military-Grade Durability:** 316L stainless steel body resists extreme heat, cold, and water up to 328ft.
- • **170+ Sports Modes & Offline Maps:** Track every adventure with precision and never lose your way, even off-grid.

## Overview

The Amazfit T-Rex 3 is a 48mm military-grade smartwatch built for extreme conditions, featuring a blazing 2000-nit AMOLED display, dual-band GPS with six satellite systems, and an impressive 27-day battery life. It supports over 170 sports modes, offers AI-driven voice control powered by GPT-4o, and provides offline global maps. Water-resistant up to 328 feet and temperature resistant from -22°F to 158°F, it’s designed for professionals and adventurers who demand durability, precision, and smart connectivity on the go.

## Description

The Amazfit T-Rex 3 tactical smart watch is designed for the adventurous individual seeking durability and versatility in their smartwatch. This smartwatch for men and women combines ruggedness with advanced technology, making it an ideal choice for outdoor enthusiasts. With a 48mm military-grade build, it resists extreme temperatures from 158°F to -22°F and is water-resistant up to 328 feet, perfect for surfing and freediving. This Amazfit watch boasts an impressive 27-day battery life, providing reliability even on extended expeditions. Its vibrant AMOLED display reaches peak brightness of 2,000 nits, allowing you to view maps and workout data clearly, even in bright sunlight or challenging conditions. As a GPS watch, it provides dual-band positioning with six satellite systems, ensuring precise tracking for your adventures. The Amazfit T-Rex 3 not only serves as a GPS watch but also includes health monitoring features, such as a heart monitor watch and a smart watch blood pressure monitor, keeping you informed of your biometric data. Stay connected with its capabilities as a smartwatch that can call and text, offering seamless communication. It is one of the premier smart watches for men and women, Android compatible, catering to those with dynamic lifestyles. Plus, with over 170 workout modes and AI training plans, this health tracker watch supports enduring fitness pursuits. Whether you seek a smartwatch for women or men smart watches, the Amazfit T-Rex 3 caters to a wide array of users, providing an extensive suite of functions and an authoritative design for any adventurer.

Review: Strong, looks good, all I need tracked and last - I have had this watch for 6 months now and its awesome. I wear it daily and it hasn't got a scratch like some of my old watches would have. It tracks steps heart rate and even running distance. The battery life is about 7 days for me. For half the price of other watches and built strong, it's an easy choice
Review: Total Satisfaction - The reason i bought was the battery life. I am getting 14 days with always on Display and 25-30 days with always on display off. Light weight wonderful watch and full of features.

## Features

- Large, Bright Display: The AMOLED display can reach peak brightness of 2,000 nits; read your maps and workout data easily in any light. Night mode reduces eye strain in the dark, and Glove Mode keeps the screen responsive when wearing 2mm thick gloves.
- Built for Adventure: Endure any challenge with a 316L stainless steel bezel and buttons. The military-grade body can resist 158°F heat and -22°F cold. Water-resistant to 328 Feet, the watch is great for surfing and can be used for freediving to a depth of 147 Feet.
- Over 3 Weeks of Battery Life: The Amazfit T-Rex 3 smart watch can last for 27 days with typical use, 42 hours in GPS Accurate Mode, and up to 114 hours in GPS Long Battery Life Mode. With some settings disabled, GPS usage can even last up to 180 hours for long hikes.
- Free Maps & Advanced GPS: Download free global, contour, and snow maps. Track your adventures accurately with dual-band positioning, backed up by 6 satellite systems for fast connection. Get turn directions from your smartwatch as you go.
- 170+ Workout Modes & AI Training Plans: Explore 170+ workout modes including hiking, strength training, ultramarathon, surfing, skiing, and more. Get personalized AI-generated training plans, real-time performance updates, and more.
- Take Charge with AI: Fully control your smart watch with your voice thanks to Zepp Flow powered by OpenAI's GPT-4o technology, and send speech-to-text message replies to Android apps like WhatsApp.
- Enhanced Privacy Protection: Amazfit T-Rex 3 smartwatch offers top-tier data protection from desertcart Web Services, ensuring GDPR compliance. Take full control of your privacy by choosing to enable or disable GPS data storage.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DCZ9PRCP |
| Age Range Description | Adult |
| Band Colour | Onyx Black |
| Band Length | 220 Millimetres |
| Band Material Type | Stainless Steel |
| Band Width | 22 Millimetres |
| Battery Average Life | 27 days |
| Battery Capacity | 700 |
| Battery Cell Type | Lithium Polymer |
| Battery capacity | 700 |
| Box Contents | Magnetic charging base (no USB Type-C cable), Smart Watch, User Manual |
| Brand Name | Amazfit |
| Case Material Type | Stainless Steel |
| Closure Type | Buckle and Magnetic |
| Colour | Onyx Black |
| Communication Feature | Bluetooth |
| Compatible Devices | Android 7.0 and above, iOS 14.0 and above |
| Compatible Phone Models | Android 7.0 and above, iOS 14.0 and above |
| Connectivity Technology | Bluetooth, Wi-Fi |
| Connectivity technology | Bluetooth, Wi-Fi |
| Controller Type | Android |
| Customer Reviews | 4.6 out of 5 stars 2,159 Reviews |
| Display Type | AMOLED |
| External Testing Certification | ANATEL |
| GPS Geotagging Functionality | Built-in GPS |
| Global Trade Identification Number | 00850058994703 |
| Human Interface Input | Touchscreen |
| Item Dimensions | 11.3 x 11.2 x 7.2 centimetres |
| Item Dimensions D x W x H | 49D x 49W x 14H millimetres |
| Item Weight | 68 g |
| Language | English |
| Manufacturer | Amazfit |
| Maximum Display Brightness | 2000 Nit |
| Memory Storage Capacity | 26 GB |
| Memory storage capacity | 26 GB |
| Metrics Measured | Heart Rate Monitor, Sleep Duration, Blood Oxygen Monitor |
| Model Name | Amazfit T-Rex 3 Smart Watch |
| Model Number | A2323-Black |
| Operating System | Zepp OS 4.0 |
| Operating system | Zepp OS 4.0 |
| Product Features | Altitude Assistant, Compass, Freediving Certified, Maps, dual-band GPS |
| Resolution | 454 x 454 |
| Screen Size | 1.5 Inches |
| Shape | Round |
| Sim Card Size | eSIM |
| Special feature | Altitude Assistant, Compass, Freediving Certified, Maps, dual-band GPS |
| Sport Type | Basketball, Cycling, Diving, Hiking, Swimming |
| Style Name | T-Rex 3 |
| Supported Application | GPS |
| Supported Satellite Navigation System | GPS |
| Target Audience | Men, Unisex Adults |
| UPC | 850058994703 |
| Unit Count | 1.0 count |
| Warranty Type | Limited |
| Water Resistance Depth | 100 Metres |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IPX7 |
| Wearable Computer Type | Smart Watch |
| Wireless Compability | Bluetooth |
| Wireless Provider | Unlocked |
| Wireless communication standard | Bluetooth |

## Product Details

- **Battery capacity:** 700
- **Battery cell composition:** Lithium Polymer
- **Connectivity technology:** Bluetooth, Wi-Fi
- **GPS:** Built-in GPS
- **Memory storage capacity:** 26 GB
- **Operating system:** Zepp OS 4.0
- **Screen size:** 1.5 Inches
- **Shape:** Round
- **Special feature:** Altitude Assistant, Compass, Freediving Certified, Maps, dual-band GPS
- **Wireless communication standard:** Bluetooth

## Images

![Amazfit T-Rex 3 Military Smart Watch 48mm, Fitness Watches with GPS (with Privacy), AI, Voice Control, Offline Maps, for Android or iPhone, 170 Sports Modes, 328ft Water-Resistant, Black - Image 1](https://m.media-amazon.com/images/I/71GtgMbKvKL.jpg)
![Amazfit T-Rex 3 Military Smart Watch 48mm, Fitness Watches with GPS (with Privacy), AI, Voice Control, Offline Maps, for Android or iPhone, 170 Sports Modes, 328ft Water-Resistant, Black - Image 2](https://m.media-amazon.com/images/I/91o+wytPDOL.jpg)
![Amazfit T-Rex 3 Military Smart Watch 48mm, Fitness Watches with GPS (with Privacy), AI, Voice Control, Offline Maps, for Android or iPhone, 170 Sports Modes, 328ft Water-Resistant, Black - Image 3](https://m.media-amazon.com/images/I/812u5lZp66L.jpg)
![Amazfit T-Rex 3 Military Smart Watch 48mm, Fitness Watches with GPS (with Privacy), AI, Voice Control, Offline Maps, for Android or iPhone, 170 Sports Modes, 328ft Water-Resistant, Black - Image 4](https://m.media-amazon.com/images/I/91hWk7ZXReL.jpg)
![Amazfit T-Rex 3 Military Smart Watch 48mm, Fitness Watches with GPS (with Privacy), AI, Voice Control, Offline Maps, for Android or iPhone, 170 Sports Modes, 328ft Water-Resistant, Black - Image 5](https://m.media-amazon.com/images/I/91pc4jwi2+L.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Strong, looks good, all I need tracked and last
*by A***R on 28 June 2026*

I have had this watch for 6 months now and its awesome. I wear it daily and it hasn't got a scratch like some of my old watches would have. It tracks steps heart rate and even running distance. The battery life is about 7 days for me. For half the price of other watches and built strong, it's an easy choice

### ⭐⭐⭐⭐⭐ Total Satisfaction
*by Z***I on 22 April 2025*

The reason i bought was the battery life. I am getting 14 days with always on Display and 25-30 days with always on display off. Light weight wonderful watch and full of features.

### ⭐⭐⭐⭐⭐ THE BEST AND BEAST ---------
*by H***H on 9 May 2026*

I’ve been using the Amazfit T-Rex 3 for some time now, and honestly, this watch has exceeded my expectations in almost every way. The first thing that instantly grabs attention is the incredibly bright and crystal-clear 1.5-inch AMOLED display. Even under direct sunlight, the screen remains sharp, vibrant, and super easy to read thanks to its impressive 2000 nits brightness. The rugged premium design with stainless steel detailing gives it a true adventure-watch feel while still looking stylish enough for daily wear. One small thing I personally noticed is that while the Amazfit T-Rex 3 has an absolutely gorgeous and ultra-bright AMOLED display with 2000 nits peak brightness, deep blacks, and excellent outdoor visibility, I still felt that the display clarity and crispness on the CMF Watch Pro 2 looked slightly sharper and cleaner to my eyes in normal day-to-day usage. The T-Rex 3 display is bigger, more rugged, and designed for outdoor adventures, maps, workouts, and extreme visibility, whereas the CMF display feels a bit more refined and visually polished for regular UI elements and text clarity. Performance-wise, the watch feels amazingly fluid and smooth. Navigating through menus, apps, workout modes, maps, and features is fast and seamless. The UI is clean, responsive, and packed with useful features. I’m genuinely impressed by how many functions and smart tools Amazfit has included without making the experience feel laggy or cluttered. From health tracking, sleep monitoring, heart rate and SpO2 tracking to offline maps, dual-band GPS, AI features, and 170+ sports modes — everything works beautifully and reliably. Battery life is another area where this watch absolutely shines. Getting up to 14-15 days of battery backup on a rugged smartwatch with such a bright display and powerful GPS features is seriously impressive. It easily becomes a reliable companion for travel, workouts, outdoor activities, and everyday use without constantly worrying about charging. Overall, the Amazfit T-Rex 3 feels like a perfect combination of toughness, premium quality, smart functionality, and smooth performance. It delivers flagship-level features at a very impressive value, and every day of usage makes me appreciate it even more. Definitely one of the best rugged smartwatches I’ve used so far.

## Frequently Bought Together

- Amazfit T-Rex 3 Outdoor Smart Watch 48mm AMOLED Display, Offline Maps & Navigation, 6 Satellite Systems Dual Band GPS, 27 Days Battery Life, 170+ Sports Mode, 45m Freediving for Android, iPhone
- Aemus Screen Protector Compatible for Amazfit T-Rex 3 Rugged/Military Smart Watch (3 Pack) Tempered Glass Protector Clear Film
- Compatible with Amazfit T-Rex 3 Case, Scratch-Resistance TPU Military Protection Rugged Cover Case for Amazfit T-Rex 3 Smartwatch Accessories (Black)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-19*