ZDNET’s key takeaways
- The Amazfit T-Rex 3 Pro is available for $400
- The watch sports a LED flashlight, is available in two sizes, has a speaker and microphone for call and assistant support, and three weeks of battery life
- There is no support for subscription music services, wearable payment systems, and limited third party apps.
Follow ZDNET: Add us as a preferred source on Google.
If you’ve read any of my Garmin reviews over the past couple of years, then you know that I use the watch’s LED flashlight daily. I’ve been asking for Coros, Suunto, Polar, Apple, and Samsung to include this function on their watches without any luck. Thankfully, Amazfit stepped up, and the new Amazfit T-Rex 3 Pro sports a two-color LED flashlight that competes with Garmin.
Also: I tested the best sports watches in 2025: Here are the latest and greatest watches, no matter your budget
In addition to the LED flashlight, the new T-Rex 3 Pro is available in two sizes, so everyone can enjoy the watch no matter their wrist size. It has an integrated speaker and microphone for hands-free calling and Zepp Flow control, and supports free downloadable navigation maps, including snow ski resort maps.
The T-Rex 3 Pro is designed for outdoor adventurers, including trail runners and endurance athletes. Its rugged titanium build, sapphire crystal display, long battery life, and durability include operating in temperatures as low as -30 degrees Celsius.
The addition of a 44mm model for smaller wrists is a nice addition to the series, and while smaller than the 48mm model, it still supports up to 19 days with typical usage or 29 hours in precision GPS mode (highest battery consumption mode).
Matthew Miller/ZDNET
While I wasn’t able to test out trail running myself yet, the T-Rex 3 Pro debuted at UTMB in Chamonix and was worn by at least three Amazfit ambassadors. While the LED flashlight can be activated manually and shine in red and three white levels, it can also be set up as a safety light for your selected activity. The safety light can shine in red or white as a long flash, short flash, gradient, or specified custom frequency.
Also: Finally, a smartwatch for fishing enthusiasts – my verdict after taking it on the river
You can also preview the safety light to confirm it will shine as desired during your activity. Amazfit may have implemented the LED flashlight after Garmin’s success, but the company has also added customization and optimization for the user.
Matthew Miller/ZDNET
Last year, after a 30-year hiatus, I started downhill skiing again. I now have all of my gear and an Icon pass to tackle the slopes this winter. The T-Rex 3 Pro supports resort ski maps with slope color codes and lift dynamics, so I can’t wait for the snow to come so that I can test out the watch in that environment.
The T-Rex 3 Pro provides over 180 sport modes for you to select and customize. It was great to see a dog walking one since that is something my wife and I do regularly. With other watches, I have just been selecting walking, but if you walk dogs, you know there are bathroom breaks, sudden bursts of energy, and more, so it’s nice to see Amazfit provide a more specific common activity.
Also: Why I wear this $220 smartwatch even after testing Garmin and Samsung watches
I am currently testing a Coros Nomad that has extensive fly fishing support, so I looked at the T-Rex 3 Pro and found the fishing mode provided by Amazfit supports cast tracking and fish logging, in addition to navigation, heart rate tracking, and more. I highly recommend that you explore your preferred activity settings and customize each for your personal needs.
The T-Rex 3 Pro is a rugged watch with some bulk to support the large capacity battery, so it is not the most comfortable watch to sleep with. Thankfully, the Amazfit Helio Strap is a fantastic, affordable wearable that fits seamlessly on your wrist or arm to track all of your sleep metrics and then syncs to the Zepp ecosystem.
The Helio Ring can also be used for unobtrusive health and wellness tracking when you are not wearing the Amazfit T-Rex 3 Pro.
Matthew Miller/ZDNET
I spent a couple of weeks using the 48mm Tactical Black model. The 48mm size will also be available in Black Gold, while the smaller 44mm will be available in Q4 in Gold/Gray and Black Gold, so keep your eye out for the smaller model in the next couple of months.
The T-Rex 3 will continue to be sold at a lower price, while the T-Rex 3 Pro provides another size option with an LED flashlight and premium materials.
ZDNET’s buying advice
The one feature I have been looking for in another company to launch with in order to compete with Garmin has now appeared, as the LED flashlight is present on the top of the Amazfit T-Rex 3 Pro. The watch launches at a reasonable $400 price with flagship materials, extensive and customizable activity support, and in an ecosystem that offers serious competition to the most popular wearables today.
