Two 44 mm versions of the Amazfit T-Rex 3 Pro smartwatch are now available in markets worldwide. They join the existing 48 mm variants, which were released in September 2025, with a similar design including titanium bezel and buttons.

You can now pre-order the T-Rex 3 Pro 44 mm Black Gold and the T-Rex 3 Pro 44 mm Arctic Gold for $399.99 in the US. Orders are due to ship from October 31st. At the brand’s online store, customers are offered a 20% discount on an accompanying accessory like the Up Open-Ear Earbuds, or a nylon or textured silicone strap.

In the UK, these two watches retail for £399.90 each, shipping immediately. In other European countries like France, Spain and Germany, the Black Gold version is available for €399.90. The Arctic Gold model is currently marked as out of stock, with no indication as to when it could launch in this market. For context, the pricing of these 44 mm watches across all regions matches that of the larger 48 mm versions. 

There are a few differences between the two sizes of the T-Rex 3 Pro. The smaller version has a 1.32-inch AMOLED display, while the larger model has a 1.50-inch screen. The 44 mm also has a lower capacity battery, a 640 mAh power pack for up to 19 days of battery life; for comparison, the 48 mm watch has a 700 mAh battery and a longer estimated run time of 25 days.

Features of the Amazfit T-Rex 3 Pro include GPS tracking, with six satellite system positioning, offline maps and on-watch route planning. You can track your exercise with over 180 sports modes, such as Rucking and Diving, and monitor health metrics like heart rate and blood oxygen level. There is also an integrated LED flashlight offering two colors, and an integrated speaker and microphone enable Bluetooth calling. It is unclear when the Amazfit T-Rex 3 Pro 44 mm smartwatches will retailers like Amazon.

Polly AllcockPolly Allcock – Senior Tech Writer – 4771 articles published on Notebookcheck since 2021

I’ve been interested in technology for as long as I can remember. From a young age, I have loved gadgets and understanding how things work. Since graduating, I have worked for several technology companies across FinTech, AdTech and Robotics.