Move over Garmin Fenix 8 — the new Amazfit T-Rex 3 smartwatch is a rugged, battery-life beast

Amazfit T-Rex 3 smartwatch on a user's wrist
(Image credit: Future)

Move over Garmin Fenix 8, there's a new tough-built, long-lasting smartwatch in town. Budget-minded wearables manufacturer Amazfit just launched the new T-Rex 3 smartwatch during the IFA 2024 show in Berlin, and it looks to be an impressive refresh of the well-received T-Rex 2, the best cheap smartwatch for the outdoors

Sporting a bigger and brighter AMOLED screen, an upgraded stainless steel bezel and free access to offline maps with turn-by-turn directions, the T-Rex-3 represents far more than an iterative update to the the series. Here's everything you need to know about the new smartwatch. 

Amazfit T-Rex 3: Price and availability

The Amazfit T-Rex 3 is available starting today (September 6) for $279 via Amazfit directly or through Amazon. That's a price increase of $79 over the watch's predecessor, which, by the way, looks to be completely out of stock everywhere. 

Amazfit T-Rex 3: Key upgrades

Amazfit T-Rex 3 smartwatch

(Image credit: Amazfit)

The T-Rex 3 offers 16% more screen real estate than its predecessor, sporting a 1.5-inch display compared to the T-Rex 2's 1.39-inch screen, and twice the maximum brightness: 2,000 nits vs. 1,000 nits. That's the same as the new Samsung Galaxy Watch 7 and Google Pixel Watch 3

Maximum battery life has been increased from 24 days to 27 days. Plus, you can now get a whopping 180 hours of usage when using GPS tracking, without sacrificing accuracy, compared to 26 hours with the T-Rex 2.

The water resistance rating is still 100 meters but the new stainless steel bezel should provide improved screen protection. The T-Rex 3 also comes with free access to offline maps, including contour maps, and even offers turn-by-turn directions.

T-Rex 3 owners can additionally access two new training metrics: readiness and heart rate variability. Plus, the device has been updated with support for even more workout types, 170 in total. New arrivals include Freediving, Hyrox Race mode and Ultramarathon mode.

The updated smartwatch also boasts a new Strength Training mode where you can build custom workout routines, along with a handful of AI-backed training features that I look forward to testing out once I get one on my wrist. Finally, there are new advanced privacy settings for GPS data, to better keep your location on the wraps. 

Amazfit T-Rex 3: Outlook

Amazfit T-Rex 3 smartwatch with falling rocks behind it

(Image credit: Amazfit)

Ultimately, the T-Rex 3 offers a lot of the same impressive features and specs found in the also new but far more expensive Garmin Fenix 8, which starts at $999.

For folks who appreciate a large and immersive touchscreen packed into an extremely tough-built case with loads of training tools and mind-blowingly good battery life, the T-Rex 3 is difficult to ignore.

With that in mind, I look forward to getting one in for testing in the coming days/weeks and will report back with my findings.

More from Tom's Guide

Category
Arrow
Arrow
Back to Smart Watches
Brand
Arrow
Colour
Arrow
Condition
Arrow
Price
Arrow
Any Price
Showing 10 of 118 deals
Filters
Arrow
Show more
Dan Bracaglia
Senior Writer, Fitness & Wearables

Dan Bracaglia is the Tom’s Guide editorial lead for all things smartwatches, fitness trackers and outdoor gear. With 15 years of experience as a consumer technology journalist testing everything from Oura Rings to instant cameras, Dan is deeply passionate about helping readers save money and make informed purchasing decisions. In the past year alone, Dan has assessed major product releases from the likes of Apple, Garmin, Google, Samsung, Polar and many others. 

An avid outdoor adventurer, Dan is based in the U.S. Pacific Northwest where he takes advantage of the beautiful surroundings every chance he gets. A lover of kayaking, hiking, swimming, biking, snowboarding and exploring, he also makes every effort to combine his day job with his passions. When not assessing the sleep tracking and heart rate accuracy of the latest tach gadgets, you can find him photographing Seattle’s vibrant underground music community.

Read more
Close up of the Amazfit T-Rex 3 smartwatch on an orange silicone strap
I just went hands-on with the Amazfit T-Rex 3 and it could be my new favorite wallet-friendly rugged smartwatch
The Amazfit Active 2 on display at CES 2025 in Las Vegas
The Amazfit Active 2 has all the features of a flagship smartwatch for under $100
Close-up of the Garmin Instinct 3 smartwatch in orange and teal on a user's wrist with the default screen shown
I wore the Garmin Instinct 3 for six weeks and it's a near-perfect smartwatch for outdoor enthusiasts
Apple Watch Ultra 2 on a black silicone strap and Amazfit T-Rex 3 on an orange silicone strap shown side-by-side on a user's wrist
I walked 10,000 steps with Apple Watch Ultra 2 vs Amazfit T-Rex 3 —here's the winner
Close-up of the Samsung Galaxy Fit3 fitness tracker in hand next to a Fitbit Charge 6 with an orange strap and a Fitbit Inspire 3 with a black strap
I just went hands-on with the Samsung Galaxy Fit3 — a Fitbit killer for less than $60
OnePlus Watch 3 watch face
OnePlus Watch 3 review: Good becomes great
Latest in Smartwatches
The coolest things the Apple Watch can do
A folding Apple Watch could follow the iPhone Flip — here’s what we know
Atari 2600 My Play Watch
It's not just Pebble — Atari is back with a watch that lets you play retro games on your wrist
Pebble Core 2 Duo and Core Time 2 smartwatches
Pebble is back with two new smartwatches starting at $149 — how to preorder
Garmin Fenix 8 Sleep
New data reveals the average Garmin sleep score — do you sleep better or worse than most people?
Garmin Fenix 8 deal
Act fast! Unexpected discount sees Garmin Fenix 8 drop to its lowest price on Amazon
The coolest things the Apple Watch can do
7 best Apple Watch features you're probably not using, but should
Latest in News
Rendered images of rumored foldable iPhone.
Foldable iPhone report just revealed key details — here's what we know
NYTimes Connections
NYT Connections today hints and answers — Saturday, March 23 (#651)
NYT Strands on a cellphone
NYT Strands today — hints, spangram and answers for game #385 (Sunday, March 23 2025)
Nintendo Switch 2
Nintendo Switch 2 rumored specs — here’s what we know so far
iPhone 17 Pro render
iPhone 17 Pro — 7 biggest rumored upgrades
CAD renderings of the Google Pixel 10 Pro XL
Pixel 10 leak could be good news for all Android phones