⚠️ AFFILIATE DISCLOSURE: This website contains affiliate links. As an Amazon Associate, we earn from qualifying purchases. If you make a purchase through these links, we may receive a small commission at no additional cost to you. Read our full affiliate policy.
Amazfit T-Rex 3 Outdoor Smart Watch 48mm AMOLED Display
The Amazfit T-Rex 3 is a military-grade outdoor smartwatch built to withstand extreme conditions. With its dual-band GPS, 150+ sports modes, and stunning AMOLED display, it's the ultimate companion for adventurers and outdoor enthusiasts.
Product Description
The Amazfit T-Rex 3 is a rugged outdoor smartwatch designed to meet military standards (MIL-STD-810H) for durability. It combines premium outdoor features with everyday smartwatch functionality in a tough yet stylish package.
This watch features dual-band GPS for precise location tracking, 150+ sports modes, and comprehensive health monitoring including heart rate, blood oxygen, and sleep tracking. The 1.39" AMOLED display delivers vibrant colors with excellent outdoor visibility, while the 24-day battery life ensures it won't quit on your longest adventures.
Product Specifications
| Brand | Amazfit |
|---|---|
| Model | T-Rex 3 |
| Display | 1.39" AMOLED, 454x454 resolution, 1000 nits brightness |
| Battery Life | Up to 24 days (typical use) |
| Water Resistance | 10ATM (100 meters) |
| Health Monitoring | Heart rate, SpO2, stress, sleep, women's health |
| Sports Modes | 150+ professional sports modes |
| GPS | Dual-band GPS (L1+L5), GLONASS, Galileo, QZSS, Beidou |
| Durability | MIL-STD-810H certified, -40°C to 70°C operation |
| Dimensions | 48.5 x 48.5 x 13.5mm, 66g |
Key Features
✓ Military-Grade Durability
MIL-STD-810H certified to withstand extreme temperatures, shocks, and vibrations.
✓ Dual-Band GPS
L1+L5 GPS bands provide superior positioning accuracy in challenging environments.
✓ 24-Day Battery Life
Extended battery performance means fewer charges on long expeditions.
✓ 150+ Sports Modes
From mountaineering to freediving, track every adventure with precision.
Why Choose Amazfit T-Rex 3?
Unmatched Durability
Built to military standards, this watch can handle extreme temperatures, shocks, and vibrations that would destroy ordinary smartwatches.
Precision Navigation
Dual-band GPS provides superior positioning accuracy in challenging environments like dense forests or urban canyons.
Outdoor-Ready Display
The 1000-nit AMOLED screen remains clearly visible even in bright sunlight, with always-on display options.
Adventure-Proof Battery
With up to 24 days of battery life, you can track multi-day expeditions without worrying about recharging.
Limitations to Consider
While the Amazfit T-Rex 3 excels in outdoor performance, there are some limitations to be aware of:
Bulkier Design
The rugged construction makes it thicker and heavier than standard smartwatches.
Limited Smart Features
Focuses more on outdoor functionality than smart features like app support.
Premium Price
The advanced features and durability come at a higher price point than basic fitness trackers.
No LTE Connectivity
Requires smartphone connection for notifications and calls.
Note: Some health metrics like SpO2 are for reference only and not intended for medical use. Always consult a healthcare professional for medical advice.
How To Use
Charge the device fully before first use using the included magnetic charger.
Download the Zepp app on your smartphone and pair it with your Amazfit T-Rex 3 via Bluetooth.
Customize your watch face and configure GPS settings for optimal outdoor tracking.
Wear the watch snugly on your wrist (about one finger width above your wrist bone) for accurate heart rate monitoring.
Start your outdoor activity by selecting the appropriate sports mode and wait for GPS signal acquisition.
For best GPS performance, ensure you're in an open area when starting activities and wait for the GPS signal to lock before beginning your workout.
Technical Specifications
The Amazfit T-Rex 3 combines rugged durability with advanced technology:
Display
1.39" AMOLED, 454x454 resolution, 1000 nits brightness
Battery
500mAh, up to 24 days typical use, 2.5 hours charge time
Sensors
BioTracker 4.0 PPG, accelerometer, gyroscope, barometer, compass
Navigation
Dual-band GPS (L1+L5), GLONASS, Galileo, QZSS, Beidou
Waterproof
10ATM (100 meters) water resistance for swimming and diving
Durability
MIL-STD-810H certified, operates from -40°C to 70°C
Frequently Asked Questions
The dual-band GPS (L1+L5) in the T-Rex 3 provides significantly better accuracy than standard GPS, especially in challenging environments like urban areas with tall buildings or dense forests. It can achieve accuracy within 3-5 meters under optimal conditions.
While the T-Rex 3 has 10ATM water resistance (rated to 100 meters), it's not specifically designed for scuba diving. It's suitable for swimming, snorkeling, and freediving, but the pressure changes during scuba diving may exceed its design limits.
The T-Rex 3 doesn't have built-in topographic maps, but it can display your recorded route and basic navigation information. You'll need to use the companion app on your smartphone for more detailed mapping.
The T-Rex 3 is certified to operate in temperatures as low as -40°C (-40°F). However, battery life may be reduced in extreme cold, and the touchscreen may become less responsive until warmed.
Share Your Experience
We value your feedback about this product
No reviews yet. Be the first to share your experience!
Ready for Your Next Adventure?
The Amazfit T-Rex 3 is the ultimate outdoor smartwatch, combining military-grade durability with advanced fitness tracking and navigation features. Whether you're hiking, climbing, or exploring, this watch is built to keep up with your adventures. Order yours today and experience the difference a true outdoor smartwatch can make!
⚠️ Amazon affiliate link - Prices may change. As an Amazon Associate, we earn from qualifying purchases. The commission we receive helps support the operation of this website. Learn more.
Buy on AmazonRelated Articles You Might Like
Learn the basics of smartwatches, their features, and how they can enhance your daily life.
Discover the must-have features that make a smartwatch worth buying.
Understand the key differences to choose the right device for your needs.
Learn how smartwatches can help you stay active, monitor health metrics, and improve wellness.
Compare top smartwatch models to find the perfect one for your requirements.
Complete guide to Amazfit's smartwatch lineup to help you choose the best model.