It does its job reliably. Its sensors are accurate and it offers multiple options for various activities and types of training.

The 3 stars are due to the difficulty it has connecting to Amazfit's Zepp App. While if you follow the connection steps it initially connects normally to the app, if Bluetooth is turned off (e.g. due to distance from the phone, etc.) the connection is obviously lost but... (and here is the problem) the ability to reconnect is also lost. You have to do a factory restart on the watch (losing all workout history or any other settings) and at the same time uninstall the ZEPP app, restart the phone, and finally start the connection process from the beginning... A tragedy, really...

I imagine all this can be overcome with an update to the app or the watch's firmware... but so far, this is the situation...

UPDATE: The firmware was updated and now the problem has been partially resolved. Now, a factory reset of the watch is not necessary, only of the app, which is not a big problem after all since it gets the data from the phone, so the history is not lost. Nevertheless, because of the 'hassle', the 3 stars remain.

The watch works perfectly and its sensors are very good!!

After 7 years and 4 different Garmin models, I got tired of its increasingly elitist strategy on every level and decided to switch camps. There were two reasons I preferred Amazfit over the Suunto I’d owned even earlier: the TR3 Pro’s even brighter (on paper) screen and NFC.
Appearance-wise, I’m not completely crazy about it; I find it overly “flashy,” even more so than the Garmin Fenix 7, to the point that it resembles watches from Temu. But there’s a good amount of titanium in the bezel and buttons, the buttons feel very good, it’s water-resistant to 100 m, and the screen is covered with sapphire crystal, so essentially the watch is top of the range.
The screen brightness is rated at 3000 nits, higher than the Garmin F8, on par with the Apple Watch Ultra 2, and lower only than the Fenix 8 Super AMOLED. There hasn’t been a single moment in direct sunlight when the screen wasn’t clearly visible, but what impressed me is how well the auto-brightness works: in dimly lit places, the screen is very unobtrusive.
I’m a very slow, middle-aged runner. I run about 120 km per month and 2–3 marathons a year, following training plans developed by Garmin in the past and Amazfit now, and I wear the watch most days of the month (more on that below). I mention this to emphasize that I’m not even a serious amateur, but I am a statistics geek and try to get the most out of my equipment. I consider Garmin the best in the field, and all these years I’d gotten used to doing things its way. To cut a long story short, I can now do everything with Amazfit that I used to do with Garmin, although I’ve had to take a few detours. For example:
- Amazfit doesn’t have an Internet portal (unbelievable, but true), so you can’t view your workouts on a PC, which is important to me. I bought a subscription to Intervals.icu, and I’ll soon subscribe to Strava—and I should have done that much earlier.
- Planning a route on a phone screen (even a tablet) doesn’t work for me at all, and since there’s no web-based portal, we can’t plan a route on a PC. You need another app; I chose the free OsmAnd. You create the route and transfer it easily to the watch.
- Garmin Pay took several years to become established in Greece, but once it did, it worked flawlessly. Amazfit, of course, has no partnership with any Greek bank, but you can create a Curve account, add any card you want to it, and then pay with the watch. It works very easily and reliably.
To me, all this shows that Amazfit hasn’t matched Garmin’s smooth, all-around experience, but it’s not far off, and you’re certainly not left without any feature; you just have to take one or two extra steps, and once you get used to them, you don’t feel much difference.
There’s nothing to discuss regarding GPS accuracy; I have nothing to comment on—it’s flawless. What impressed me is the accuracy of sleep tracking. It’s nothing like Garmin’s: it detects naps, the start and end of sleep, and waking up during the night with incredible accuracy. Amazing.
Overall, all the wellness measurements recorded in the Zepp app seem more “reasonable” to me than Garmin’s. Here too, all the measurements are consistent (as they were with Garmin), but, for example, I can’t sleep for 7 hours, wake up on my own feeling rested, and then have Garmin give me a sleep score of 50/100; Amazfit’s 78/100 seems more reasonable to me. Otherwise, my other biometrics (HRV, VO2 max, etc.) are more or less the same as Garmin’s and, most importantly, consistent.
The last problem I found, and don’t see being fixed: I listen to music on my phone with my Bluetooth headphones connected to it. When this happens, workout-related notifications (distance, pace, heart rate, workout phase) don’t come through the headphones, but through the watch’s speaker. So you need multipoint headphones, but even those aren’t guaranteed to work. I therefore bought the Amazfit Up, which are also open-ear, so that solved this problem too.
I often wear “regular” watches, so the TR3 Pro stays in its box. To avoid missing out on wellness measurements, I also bought the Amazfit Helio Strap, which is a simple fitness tracker that discreetly records the same things as the watch.
Its battery life has nothing to do with the stated figure; in practice, it lasts 11–12 days with AOD always on, always connected to my phone, and 4–5 hours of GPS workouts per week.
The TR3 Pro isn’t cheap at €400. But it can’t be compared with lifestyle smartwatches from Huawei, Samsung, etc.; it belongs to the sportswatch category alongside Garmin, Suunto, Coros, and Polar, and it performs exceptionally well. I had reservations about leaving Garmin’s tight embrace, but in the end it went much better than I expected.

**UPDATE AUGUST 2026**
The watch was given to a friend 3 months ago. The friend went swimming in the sea, and after 10 swims (surface swimming, not scuba diving or snorkeling), the flashlight stays on or flashes continuously, with no way to turn it off. The watch was always rinsed with tap water, and the buttons were never pressed underwater. The water sealing seems to be a more general problem with the T-Rex 3 Pro, and perhaps with the first batches. Naturally, the watch was sent to Germany, and naturally, it loses 2 stars from the rating; it’ll get them back if everything goes smoothly and quickly under the warranty.

**UPDATE SEPTEMBER 2026**
The watch was sent to Germany on 24/08. They replaced it, and I received a new one on Monday, September 14, without paying even for shipping, so I’d describe Amazfit Germany’s customer service as excellent.