Amazfit

Amazfit T-Rex Ultra Tactical Smart Watch for Men 47mm Military-Grade Sports Watch Dual-Band GPS 20-Day Battery Android iPhone

179+ bought in the past month

$249.99

About this item

  • RUGGED DURABILITY: Designed as a military smart watch for men and women, the Amazfit T-Rex Ultra, constructed with 316L stainless steel and mud-resistant technology, provides resilience in the toughest environments
  • ULTRA-CLEAR DISPLAY: Built for visibility, this iPhone and Android smart watch features an HD AMOLED screen with up to 1,000 nits brightness, offering clarity in all lighting, ideal for outdoor activities
  • FREEDIVING READY: Perfect for those seeking adventure, this rugged smart watch supports water resistance up to 30 meters, accommodating a variety of water sports, such as swimming and kitesurfing
  • PRECISE NAVIGATION: This wrist watch with dual-band GPS and six satellite systems offers precise accuracy and coverage, making it a preferred choice as a smartwatch for embarking on global adventures
  • UNMATCHED BATTERY LIFE: With a 20-day battery life, this smartwatch integrates innovative modes like Endurance GPS, designed for efficient power usage during long outdoor escapades
$249.99

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Product details

Operating SystemZepp OS
Memory Storage Capacity2.3 GB
Special Feature30m Freediving Support, Altitude Assistant, Compass, Mud-resistant, Ultra-low Temperature Operation
Battery Capacity700 Milliamp Hours
Connectivity TechnologyGPS
Wireless Communication StandardBluetooth
Battery Cell CompositionLithium Polymer
GPSGPS Enabled
ShapeRound
Screen Size1.39 Inches

Technical specifications

product_dimensions1.86 x 1.86 x 0.53 inches
item_weight0.31 Kilograms
item_model_numberA2142-Black
batteries1 Lithium Polymer batteries required. (included)
best_sellers_rank#132,078 in Electronics ( See Top 100 in Electronics ) #2,220 in Smartwatches
date_first_availableMarch 20, 2023
departmentmens
manufacturerAmazfit
standing_screen_display_size1.39 Inches
memory_storage_capacity2.3 GB

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Customer reviews

4.3348 ratings

Customers say

Customers find this smartwatch to be better than a Garmin watch, with incredible battery life that charges fully in 45 minutes, and one customer notes it lasts a solid year.

★★★★★

Great watch! Terrible band!

eire1274February 13, 2025

Ok, everybody has terrible bands these days, so I am deducting no points. The band in the picture is the Hēmsut leather band you can get separately. I am converting from a Fitbit Versa 4 that has served me well, but I did it a battery injury while in a hospital bed FOR 2 MONTHS and it now needs to be charged daily to log my heart rhythm and SpO2 levels, which is too easy to forget. I need the hourly logs to have with me for cardiologist visits as we monitor my artificial heart valve, 20 years old and still running! The T-Rex Ultra is OVERKILL for what I want, but I was after the battery life and water resistance (I’ve murdered a couple watches in a swimming pool, finding that “10m water resistance” doesn’t compete with dive ratings) which it covers across the board. I charged it when it arrived, then had to run through 3 firmware upgrades to get to the current OS, Zepp OS 4. That was 3 days ago. The watch, despite having hourly testing on, WiFi active, and live Accuweather running, still has 76% left on the battery. That’s awesome! A lot of the workout tools I have only poked at, not put to use fully, but I am recovering from muscle atrophy following my hospitalization. When the weather warms up, the pup and I will be putting it to use and if there are issues, I’ll come back and add it. Overall, considering I was looking at a Garmin watch for 3 times the cost, I’ve compared capabilities between it (my close friend owns it) and the Amazfit holds a dead even rating. That says a lot! Thus far, I’ve banged the glass into my guitar and the inside of my server with absolutely no scratching. The steel frame helps. Overall, for health needs, I can log everything in Apple Health on my iPhone, export to a spreadsheet in Google Docs, and have detailed info for my docs when I have appointments. I couldn’t ask for better usability. 100% cat compatible! Read more

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★★★★★

Excellent smart watch

Larry MyersMay 2, 2024

First of all, I am a previous iWatch person. I have had three, my last being the iWatch ultra. I purchased iWatches for the features, heart rate, exercise, etc. I was never happy with the square shape, but I used it to monitor my activities, sleep, heart, oxygen. I was never happy with the battery life, I was having to charge every day. Then I purchased this watch after doing some research. It does everything the iWatch does, but in my opinion better. It looks great and it is very dependable and rugged. The battery life is great. For example, I charged my watch four days ago and I am at 75% now. I would highly recommend this watch. Read more

★★★★★

Great smart watch

jean marc monsNovember 1, 2025

An amazing product Read more

★★★★☆

Wanted to love it

FarmsteadJanuary 6, 2024

I had this watch for a month but the things it didn’t do or did differently than my Apple Watch was more than I could overcome. I really wanted to love this watch. It was built like a tank, looked awesome, and had a great app. The things I didn’t like were lack of being able to respond to text and calls via the watch. Heart rate monitor seemed to be off after upgrade. Not compatible with treadmill connectivity. Battery life was incredible, band options were limited. I have returned it and will stick with my Apple Watch for now. I miss it already. Read more

★★★★★

It's the best..for me

Timothy M ShepherdMarch 1, 2024

This watch is fantastic! This is my 4th smartwatch. I've had the Samsung, 2 different Fitbits, and the apple watch. I am an iphone user. Nothing can compare to the apple watch paired with the iphone, it's seamless and the display is just beautiful. All that said I hate the way the apple watch looks. It looks like it was designed by girls for girls. Nothing against girls but I want a smartwatch that looks like a watch. I liked the look of the Samsung but just like the apple watch the battery life killed all the positives. This Amazfit T-Rex Ultra is beautiful, a man's watch, and I get 5 days of battery life normally. I know that's not the 20 days advertised but I like the always on display plus I wear it 24 hours a day everyday. The incredible things include nice display and many awesome watch faces. App is also pretty awesome. The workout and sleep feature details are also great, One huge thing is how fast it charges. I can pop it on the charger at 5% and it will be fully charged in 45 min and if needed you can charge it for like 10 min and get another day out of it. Bravo amazfit! Yeah you can't respond to text or answer a call on it which i'll admit are convenient features but you do see text and notifications and it lets you see the incoming call and reject it. To me the trade offs are worth it cause it's beautiful and pretty great all around. If you like your apple watch or your a girl then keep your apple watch because this is not really better...or is it? Read more

★☆☆☆☆

Not accurate for a $400 Watch

Guruprasad B.July 25, 2024

First off, i am an apple person and have been using their products for a long time. Then I saw few videos of Amazefit Ultra having some good features when it comes to workout and outdoor activities. I was very exited and ordered one. The look and feel of the watch is great and the band is also elastic enough that even if you wear it slightly tighter, I won’t hurt your wrist. Then I installed this app (Zepp) and found few features that were either confusing or redundant., Anyways I wore it to the gym to see the heart rate was totally inaccurate., I usually workout at 130+ bpm but it was showing half of it and then the steps taken/ distance were totally off than the reality. Overall doesn’t serve the purpose. Read more

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