---
product_id: 657258449
title: "T-Rex 3 Outdoor Rugged Military 48mm Smart Watch, Built in GPS, 27 Days Battery Life, Offline Maps, 2000 Nits Brightness, 10 ATM Water Resistance, AI Coach, for iOS & Android (Onyx)"
brand: "amazfit"
price: "€ 424.21"
currency: EUR
in_stock: true
reviews_count: 13
category: "Amazfit"
url: https://www.desertcart.fi/products/657258449-t-rex-3-outdoor-rugged-military-48mm-smart-watch-built
store_origin: FI
region: Finland
---

# 10 ATM water resistance 2000 nits AMOLED brightness 27 days battery life T-Rex 3 Outdoor Rugged Military 48mm Smart Watch, Built in GPS, 27 Days Battery Life, Offline Maps, 2000 Nits Brightness, 10 ATM Water Resistance, AI Coach, for iOS & Android (Onyx)

**Brand:** amazfit
**Price:** € 424.21
**Availability:** ✅ In Stock

## Summary

> ⛰️ Conquer every terrain with the smartwatch built for the bold.

## Quick Answers

- **What is this?** T-Rex 3 Outdoor Rugged Military 48mm Smart Watch, Built in GPS, 27 Days Battery Life, Offline Maps, 2000 Nits Brightness, 10 ATM Water Resistance, AI Coach, for iOS & Android (Onyx) by amazfit
- **How much does it cost?** € 424.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/657258449-t-rex-3-outdoor-rugged-military-48mm-smart-watch-built)

## 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

- • **Endurance Champion:** Military-grade ruggedness with 316L stainless steel bezel, heat & cold resistance, plus 10 ATM water resistance for any adventure.
- • **Marathon Battery Life:** Up to 27 days of typical use and up to 180 hours in GPS long battery mode—stay powered through your longest journeys.
- • **Next-Level Navigation:** Dual-band GPS with 6 satellite systems and free offline maps keep you on track, no matter where you roam.
- • **Unstoppable Brightness:** AMOLED display with 2000 nits peak brightness ensures crystal-clear visibility even under direct sunlight or with gloves on.
- • **AI-Powered Fitness Coach:** 170+ workout modes and personalized AI training plans with real-time feedback to elevate your performance.

## Overview

The Amazfit T-Rex 3 is a rugged, military-grade 48mm smartwatch featuring a blazing 2000 nits AMOLED display, 27-day battery life, and 10 ATM water resistance. Equipped with advanced dual-band GPS, offline maps, and AI-powered coaching, it’s designed for outdoor enthusiasts and fitness pros who demand durability, precision, and smart connectivity on iOS and Android.

## Description

Buy Amazfit T-Rex 3 Outdoor Rugged Military 48mm Smart Watch, Built in GPS, 27 Days Battery Life, Offline Maps, 2000 Nits Brightness, 10 ATM Water Resistance, AI Coach, for iOS & Android (Onyx) online at low price in India on desertcart.in. Check out Amazfit T-Rex 3 Outdoor Rugged Military 48mm Smart Watch, Built in GPS, 27 Days Battery Life, Offline Maps, 2000 Nits Brightness, 10 ATM Water Resistance, AI Coach, for iOS & Android (Onyx) reviews, ratings, features, specifications and browse more Amazfit products online at best prices on desertcart.in.

Review: Rugged, Powerful & Worth Every Rupee - I’ve been using the Amazfit T-Rex 3 for a while now, and honestly, it’s an excellent smartwatch for fitness lovers and daily users What I loved: 💪 Super rugged & premium build – feels solid and durable, perfect for workouts and outdoor use 🔋 Amazing battery life – easily lasts many days without frequent charging 🏃 Accurate fitness tracking – steps, heart rate, SpO₂, sleep tracking all work very well 🛰️ GPS performance is excellent – fast and accurate for running/walking 🌊 Water resistance is great for sweat and rain 📱 Smooth app experience with the Zepp app and easy smartphone connectivity Comfort & Display: The display is bright and clear even under sunlight Comfortable to wear for long hours, even during workouts and sleep Overall, the Amazfit T-Rex 3 offers flagship-level features at a very reasonable price. If you want a strong, stylish, fitness-focused smartwatch with long battery life, this is a perfect choice. Highly recommended 👍
Review: Good smart watch with scope for improvement! - Amazfit Trex 3 is amazing in every department. With every tracking On , I get battery life of over 2 weeks. All the notifications on the watch work well with option to reply back to messages. Wish it had call reception option. That's the only missing part. But that does not take away this from being one of the best watches. Sleep tracking and heart rate monitoring work well. Though there is room for improvement in sleep tracking. Some wake ups are missed in the tracking and might present wrong info at times. Overall a good watch and can be easily recommended!

## 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℉ heat and -22℉ cold. Water-resistant to 100m, wear it while surfing, or for freediving to a depth of 45m.
- 27 Days of Battery Life: The Amazfit T-Rex 3 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 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 |
| Are Batteries Included | Yes |
| Average Battery Life (in hours) | 27 Days |
| Batteries | 1 CR5 batteries required. (included) |
| Best Sellers Rank | #2,170 in Electronics ( See Top 100 in Electronics ) #63 in Smart Watches |
| Brand | Amazfit |
| Colour | Onyx |
| Connectivity Type | Bluetooth |
| Country of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,832) |
| Date First Available | 18 September 2024 |
| Generic Name | Smartwatch |
| Importer | PR innovations Pvt. Ltd., Ground Floor, P-103, PANDAV NAGAR, MAYUR VIHAR, PHASE-I, East Delhi, Delhi, 110091 |
| Included Components | Amazfit T-rex 3*1, Charging Base *1, User Manual*1 |
| Item Dimensions LxWxH | 11.3 x 11.2 x 7.2 Centimeters |
| Item Height | 7.2 Centimeters |
| Item Weight | 68 g |
| Item Width | 11.2 Centimeters |
| Item model number | A2323-Black |
| Lithium Battery Energy Content | 700 Milliampere Hour (mAh) |
| Manufacturer | Anhui Huami Information Technology Co., Ltd |
| Net Quantity | 1 Piece |
| Number of Lithium Ion Cells | 1 |
| Number of Lithium Metal Cells | 1 |
| Operating System | Zepp OS |
| Packer | Anhui Huami Information Technology Co., Ltd, Room 1201, Building A4, National Animation Industry Base, No. 800 Wangjiang West Road,Gaoxin District,Hefei |
| Product Dimensions | 11.3 x 11.2 x 7.2 cm; 68.04 g |
| Series | T-rex 3 |
| Standing screen display size | 1.5 Inches |
| Wattage | 1.05 Watts |
| Wireless Carrier | Unlocked |
| Wireless Type | Bluetooth |

## Product Details

- **Battery Capacity:** 700
- **Connectivity Technology:** Bluetooth
- **Memory Storage Capacity:** 26 GB
- **Operating System:** Zepp OS

## Images

![T-Rex 3 Outdoor Rugged Military 48mm Smart Watch, Built in GPS, 27 Days Battery Life, Offline Maps, 2000 Nits Brightness, 10 ATM Water Resistance, AI Coach, for iOS & Android (Onyx) - Image 1](https://m.media-amazon.com/images/I/71GtgMbKvKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Rugged, Powerful & Worth Every Rupee
*by V***N on 16 December 2025*

I’ve been using the Amazfit T-Rex 3 for a while now, and honestly, it’s an excellent smartwatch for fitness lovers and daily users What I loved: 💪 Super rugged & premium build – feels solid and durable, perfect for workouts and outdoor use 🔋 Amazing battery life – easily lasts many days without frequent charging 🏃 Accurate fitness tracking – steps, heart rate, SpO₂, sleep tracking all work very well 🛰️ GPS performance is excellent – fast and accurate for running/walking 🌊 Water resistance is great for sweat and rain 📱 Smooth app experience with the Zepp app and easy smartphone connectivity Comfort & Display: The display is bright and clear even under sunlight Comfortable to wear for long hours, even during workouts and sleep Overall, the Amazfit T-Rex 3 offers flagship-level features at a very reasonable price. If you want a strong, stylish, fitness-focused smartwatch with long battery life, this is a perfect choice. Highly recommended 👍

### ⭐⭐⭐⭐⭐ Good smart watch with scope for improvement!
*by P***6 on 14 December 2025*

Amazfit Trex 3 is amazing in every department. With every tracking On , I get battery life of over 2 weeks. All the notifications on the watch work well with option to reply back to messages. Wish it had call reception option. That's the only missing part. But that does not take away this from being one of the best watches. Sleep tracking and heart rate monitoring work well. Though there is room for improvement in sleep tracking. Some wake ups are missed in the tracking and might present wrong info at times. Overall a good watch and can be easily recommended!

### ⭐⭐⭐⭐ Incredible Battery and Solid Performance!
*by S***V on 23 May 2025*

I've been using the Amazfit T-Rex 3 for over 20 days now, and I am thoroughly impressed! This watch is an absolute beast. Right out of the box, the build quality feels rugged and durable, exactly what you'd expect from a T-Rex model. But the real star of the show for me has been the battery life – it's phenomenal! I'm genuinely getting 20+ days on a single charge with my regular usage, which includes daily workout tracking and notifications. This is a game-changer compared to other smartwatches I've owned. Beyond the core tracking, I'm really satisfied with the range of features this watch offers. From the various sports modes to the health monitoring capabilities, it has everything I need and more. The display is clear and easy to read even in bright sunlight, and the interface is intuitive to navigate. If you're looking for a rugged smartwatch with incredible battery life and solid, dependable performance for fitness tracking and daily use, look no further. The Amazfit T-Rex 3 has met my expectations. Highly recommended!

## 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 Finland*
*Store origin: FI*
*Last updated: 2026-02-15*