I just went hands-on with the new Amazfit T-Rex 3 Pro — 5 things you should know about this monster smartwatch

Close-up of the Amazfit T-Rex 3 Pro rugged smartwatch
(Image credit: Dan Bracaglia/Tom's Guide)

Amazfit, the brand behind some of my favorite wallet-friendly smartwatches, just announced a new model, the Amazfit T-Rex 3 Pro, at the IFA show in Berlin. I’ve been wearing it on my wrist for roughly 24 hours, and so far, I'm impressed.

First thoughts: This is a sturdy and rugged, feature-packed wearable with fitness-tracking sensors and activity modes galore, but with an oddly un-Amazfit-like price tag.

Based on my initial impressions of the Amazfit T-Rex 3 Pro, here are the five most important things you need to know about this new, monster smartwatch.

1. There are two sizes (one slightly less monster-like)

Close-up of the Amazfit T-Rex 3 Pro rugged smartwatch

(Image credit: Dan Bracaglia/Tom's Guide)

Unlike the similar-looking standard Amazfit T-Rex 3 that came before it, which only comes in 48mm, the Pro model is offered in both 44mm and 48mm to accommodate a wider range of wrists.

I got my hands on the 48mm T-Rex 3 Pro, and it’s got more presence than I like on my 6.5-inch wrist, which is to say, I’m more than a little intrigued by the smaller option.

The standard T-Rex 3 is priced at $279, though it’s often on sale for less. Meanwhile, the T-Rex 3 Pro is $399, regardless of which size you choose. That’s the same cost as the Garmin Instinct 3, my favorite rugged smartwatch in 2025. And that’s not all these two have in common (more on that below).

With many of Amazfit’s most popular watches priced at or below $100, including the impressive Amazfit Active 2, the T-Rex 3 Pro represents the upper end of the brand’s lineup. Then again, it seemingly has the features and build quality to justify the cost.

2. Premium materials = rugged design

Close-up of the Amazfit T-Rex 3 Pro rugged smartwatch

(Image credit: Dan Bracaglia/Tom's Guide)

What sets the Amazfit T-Rex 3 Pro apart from the standard model beyond price and size options? Higher-end materials, for one. While the normal T-Rex 3 uses Gorilla Glass for screen protection, the Pro model boasts sapphire glass, which is all-around more resilient to scratches and impact.

Speaking of display, the 48mm Pro has the same-size 1.5-inch AMOLED panel as the standard, while the smaller 44mm Pro sports a 1.32-inch display. Both Pro models max out at an impressive 3,000 nits, an increase of 1,000 nits over the standard and the same max output as the Apple Watch Ultra 2, which is more than enough for easy viewing in direct sunlight.

Close-up of the Amazfit T-Rex 3 Pro rugged smartwatch

(Image credit: Dan Bracaglia/Tom's Guide)

Amazfit also upgraded the buttons and bezel materials from stainless steel to Grade 5 titanium alloy, which is harder and lighter than steel and even tougher than standard industrial titanium alloy.

Unfortunately, the case is still fiber-reinforced polymer (plastic), but given the size, that’s likely an intentional move to keep both the cost and weight of the device down (plastic is, after all, lighter than titanium).

Water resistance on both the Pro and standard remains a respectable 100 meters, enough for diving and high-speed watersports.

3. There’s an onboard LED flashlight… just like my favorite Garmin watch

Close-up of the Amazfit T-Rex 3 Pro rugged smartwatch

(Image credit: Dan Bracaglia/Tom's Guide)

Well, well, well, look who now also sports a nifty little LED flashlight tucked into the watch case near the 12:00 position. Clearly, an homage to the Garmin Instinct 3, which offers the same exact design element, I can’t blame Amazfit for borrowing such a brilliant idea.

With an adjustable output and the ability to toggle between a white and red light, this style of smartwatch flashlight is as useful in everyday scenarios, like trying to locate your dog's poop by moonlight or navigate a darkened hotel room without waking your sleeping partner, as it is for outdoor adventure scenarios.

4. Map and routing tools look impressive

Close-up of the Amazfit T-Rex 3 Pro rugged smartwatch

(Image credit: Dan Bracaglia/Tom's Guide)

In addition to supporting a seriously massive number of physical activities (180+), from winter sports like snowboarding, to hula hooping, chess, and checkers, the T-Rex 3 Pro also boasts seriously high-end navigational tools.

Not only can you download fairly detailed maps with contour markings and points of interest for offline use, but the T-Rex 3 Pro also offers turn-by-turn directions and even supports a huge number of ski and snowboard mountain maps worldwide. Best of all, these navigational features are completely free.

And even though the standard T-Rex 3 model offers all of the above, the Pro uses a far more advanced satellite positioning system with access to six satellites versus two, not only for navigation, but for activity tracking too.

5. Battery life lasts for days or even weeks

Close-up of the Amazfit T-Rex 3 Pro rugged smartwatch

(Image credit: Dan Bracaglia/Tom's Guide)

The T-Rex 3 is already a proven battery life champ, with a rating of 27 days in normal smartwatch mode and roughly 42 hours with max GPS tracking enabled.

While the T-Rex 3 Pro in both sizes lasts about the same in smartwatch mode, battery life takes a slight hit in max GPS mode due to the more advanced onboard antenna and positioning system. The smaller model is still good for a hearty 26 hours, and the larger model for 38 hours.

Those numbers are still respectable, especially compared to the competition. For example, the Apple Watch Ultra 2 lasts for 12 hours in GPS mode. Perhaps the Apple Watch Ultra 3 will last longer, though.

Amazfit T-Rex 3 Pro: Outlook

Close-up of the Amazfit T-Rex 3 Pro rugged smartwatch

(Image credit: Dan Bracaglia/Tom's Guide)

While the price of this new Amazfit model is admittedly higher than I expected, the T-Rex 3 Pro offers nothing short of an ultra-premium smartwatch experience from my initial interactions with it, boasting battery life, fitness tracking features, navigational tools, and a build quality up there with some of the best smartwatch models in 2025.

Stay tuned for further testing of the Amazfit T-Rex 3 Pro, including head-to-head comparisons, feature deep dives, and of course, a full review.

Follow Tom's Guide on Google News to get our up-to-date news, how-tos, and reviews in your feeds. Make sure to click the Follow button.

More from Tom's Guide

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.

You must confirm your public display name before commenting

Please logout and then login again, you will then be prompted to enter your display name.