Amazfit GTR 3 Pro review: Superstyling smartwatch

A sleek smartwatch exterior doesn't mask some software bugginess
Amazfit GTR3 Pro
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The Amazfit GTR3 Pro is a new smartwatch at the top of the Amazfit range – and an attempt to push itself beyond the budget smartwatch category.

Joining the Amazfit GTS 3 and the Amazfit GTR 3, the GTR 3 Pro seeks to offer a fuller smartwatch experience.

It goes big on high grade specs, minus the high price. It also sees the introduction of Zepp OS, which brings among other things, an app store to an Amazfit watch for the first time.

The GTR3 Pro comes in priced at $229.99/£179.99, making it around $30/£30 more expensive than the standard GTR 3. It actually matches the launch price of the GTR 2 in the UK, but comes in more expensive in the US in comparison. The standard GTR 3 (and GTS 3) come in at $179/£159, so there's not a huge premium.

That puts it in and around smartwatches like the Apple Watch Series 3 ($199/£199), Huawei Watch GT 3 (£229/$300 approx) and the Fitbit Versa 3 ($229/£199).

We were big fans of the Amazfit GTR 2, so have the new features made this a better or worse smartwatch?

We've been living with it to find out. Here's our comprehensive verdict on the Amazfit GTR 3 Pro.

GTR 3 Pro v GTR 3 specs compared

GTR 3 ProGTR 3
Case size46mm 45mm
Screen shapeRound Round
Screen size1.45-inch AMOLED
1.39-inch AMOLED
Resolution480 x 480 454 x 454
Water resistance5ATM 5ATM
Temperature sensorYes No
GPSYes Yes
Sports modes150+ 150+
Battery size450mAh 450mAh
Quoted battery life12 days 21 days
Price$229/£179 $179/£159

Amazfit GTR3 Pro: Design and screen

Design and screen

If there's one thing you can't knock Zepp Health for it's that it's really pushing the boundaries of how good affordable smartwatches can look.

The GTR 2 was a svelte, sleek number, and that approach has definitely been retained with the GTR3 Pro.

It's actually a really beautiful smartwatch, but now in a more classic watch way. You've got your pick of two case looks with the option of a 22mm removable fluroelastomer strap or a brown leather strap. That's matched up with a 46mm aluminium alloy case, so you lose the option of the stainless steel case you do get with the GTR 2.

It's probably too big for many female wrists – and a 46mm case size pushes out of being a true unisex device for our money.

We had the brown leather matched up with silver aluminium case to test and it's fair to say that's a classic colour combo you'll find on a lot of watches.

It works well here and we had plenty of compliments on how good it looked too. It's simple. minimal, nicely weighted and definitely a watch we liked wearing.

Amazfit GTR3 Pro menu

Completing that case look is a rotating crown, which sits at the top of the case and a physical button, which gives you a shortcut to the exercise tracking screen. So, nothing groundbreaking here in smartwatch terms, but they're in keeping with the overall sleek look of this watch.

Front and centre is a 1.45-inch, 480 x 480 AMOLED touchscreen display, which means you're getting a larger screen than the GTR 2. It's a really high quality display with the kind of deep blacks and vibrant colors you'd expect to find on a good AMOLED screen. There's a good top brightness and you do have the option to use it in always-on mode too.

The screen isn't entirely devoid of a black bezel, but Zepp does a very clever job of hiding it with the way the screen meets the case and with the most of the watch face designs. You're getting strong viewing angles indoors and it handled bright outdoor light well enough for us too.

If you want to take it in the water, then you do have some protection for that here too. It carries a 5ATM water resistance rating, so it's safe for showering and swimming up to 50 metres depth.

Amazfit GTR3 Pro: Zepp OS

Zepp OS

Amazfit watches run an in-house built operating system, but it hasn't quite been a fully formed as Apple's watchOS or Google's WearOS. That's now changing with the GTR 3 Pro, which runs on what Zepp Health is calling Zepp OS.

Zepp OS works with Android and iOS devices and brings a UI with more dynamic animations and most notably, an app store. In the future, an app developer kit will be launched for Zepp OS, offering the ability to create watch faces and apps.

There is also the promise of access to third party apps like Spotify and Strava, though it's likely to be a similar case to the way Huawei smartphones tried to plug gaps when it moved away from Google's Android, providing access to web-based versions of apps.

Amazfit GTR3 Pro apps

Right now, Zepp OS definitely feels like a platform that will need to do some evolving. More so off the watch than on it. The on-watch experience is good on the whole.

The new animations and the full screen widgets look great. Swiping right from the main watch screen gets you access to shortcut cards, which gives you nice glanceable stream of data and we found most useful for checking the weather or accessing Alexa.

You can swipe down to see quick settings and swipe up to see your notification stream. Tap the top physical button to see the app menu, while the bottom button offers a shortcut to exercise tracking.

These are the kind of UI elements we've already seen on other smartwatch platforms, so there's nothing really new here.

It does though at least feel slick to get around and it doesn't take long to get to grips with how things work.

Amazfit GTR3 Pro app on watch

A simple toothbrush timer is one of the first apps available in Zepp Health's app store

Off the watch, you need to spend time in the Zepp app, which we used a beta version of initially before moving over to the full version. Since the the last GTR, things have certainly been cleaned up, particularly on the homepage, where the card-based UI feel a lot less cluttered than previous versions of the app.

A Health tab is where you'll now find records for your exercise and your target activity tracking goals. Jump into your device settings and things haven't changed a great deal from previous versions of the Zepp app. It's here where you can access the watch faces store and the App Store.

That App Store currently has just over ten apps and that's largely made up of health apps with apps additionally for controlling third party smart home devices, turning your watch into a flashlight or a calculator. Don't expect a range of big name third party apps any time soon.

As mentioned, these are native apps only right now. We tried a sample of the apps out and can't say we were hugely blown away by what we found. The BMI app for instance calculates your BMI in a very simple manner while the toothbrush timer is pretty basic too.

Outside of the App Store, there's isn't a huge deal new to find here.

The Zepp app definitely feels like it's in transition as it moves from old to new. There's still a lot to of settings and menus to explore, which will undoubtedly still feel overwhelming for anyone using an Amazfit watch for the first time.

Amazfit GTR3 Pro: Smartwatch features

Amazfit GTR3 Pro weather widget

You can view notifications, weather forecasts, control music playback and stream music, though it doesn't work with third party music streaming services. You can sync calendars, record voice memos, handle calls over Bluetooth, remotely control your smartphone camera and use a Pomodoro timer to aid your productivity.

Zepp offers not one, but two smart assistants too. There's access to Amazon Alexa when you're online, and a further offline voice assistant where you can find a list of commands in the Zepp app, which include basic things like asking to view heart rate, or asking to find your phone.

As far as how well the GTR3 Pro works as a smartwatch, we'd say it's still a bit of a mix bag.

Some software bugginess meant we encountered some problems with the notification support, which aren't the actionable kind, but are easy to absorb and well optimised to the watch screen.

We did have issues with notifications appearing some days, and not appearing on others, despite being connected to our phone and set up in the Zepp app.

Amazfit GTR3 Pro music

Music controls work fine and did work with third party apps like Spotify with no issue.

While it's nice to have an onboard music player, the lack of securing a streaming music service makes it a bit of a half baked feature unless you have lots of music packed onto your phone already.

If you do like smart assistants, then you're actually well served here. We found interactions with Alexa and the offline voice assistant responsive on the whole, so those are definitely plusses here.

If you compare it to the smartwatch experience you get from something like the Fitbit Versa 3 or an Apple Watch Series 3 though, then we'd say the GTR3 Pro still has some catching up to do on this front.

Amazfit GTR3 Pro: Fitness and health tracking

Amazfit GTR3 Pro health

When it comes to tracking your fitness or health, the GTR3 Pro comes jam packed with the features to do just that. You've got 24/7 activity tracking including sleep monitoring for starters. You can track blood oxygen levels and heart rate thanks to the onboard optical BioTracker 3.0 biometric sensor.

You can also track things like breathing rate, body temperature, monitor stress and there's the ability for women to track their cycles. Those health features haven't been approved by any regulatory bodies to make them suitable for serious medical insights, and it's easy to see why, based on our experience using them.

Amazfit GTR3 Pro step tracking

Step tracking compared: Amazfit GTR3 Pro (left) and Garmin Enduro fitness tracking (right)

For those core activity tracking and sleep monitoring, we had a mixed experience with the kind of data the Pro captured.

On many occasions, we had missing data despite having worn the watch day and night. From the watch, you can track daily steps, active minutes, and hours of the day you've remained active for from a dedicated screen.

On good days, step counts were nicely within the ballpark of a Garmin fitness tracker. There were also plenty of days where no data was captured and there clearly seems to be some software bugginess to blame for this.

Amazfit GTR3 Pro sleep

It was a similar story for sleep tracking too. You can expect to get a breakdown of sleep stages, duration, track breathing quality and also receive recommendations on how to help make you get enough sleep.

Again, we were met with another software quirk where the watch tracked a night's sleep and it was viewable on the watch, but it failed to sync it over to the app.

Sometimes it did sync over and other times it tracked no sleep at all. When it did, the data actually seemed pretty reliable in terms of capturing duration and when we fell asleep and woke up the following day.

Amazfit GTR3 Pro heart rate

Continuous HR tracking compared: Amazfit GTR3 Pro (left) and Fitbit Charge 5 (right)

For continuous heart rate monitoring, you can set to track heart rate at different length intervals. The real-time data on the watch largely matched up with the Fitbit Charge 5 we tested it against.
The record of that data inside the Zepp app didn't tell the same story. It generally only saved data from parts of the day and resting heart rate was generally significantly higher than Fitbit's largely reliable heart rate sensor.
This wonky data left us largely sceptical of the stress data the Pro tracks as well, which is based on heart rate too.

Amazfit GTR3 Pro temperature

The GTR 3 Pro comes with a temperature sensor – but we certainly wouldn't put too much focus on it.

Skin temperature readings are different to your core temperature – but changes can show signs of illness or changes in the menstrual cycle. However, there's zero education around what the reading means. A core temperature of 29.7 degrees (as seen above) would likely mean you've already died.

However, it's key to have an established normal baseline – not just a temperature reading. Everyone's temperature is different – and it's changes that are useful to know. The implementation is effectively useless.

Zepp continues its push to make its heart rate-driven PAI Health assessment scores a way of better keeping track of your current state of health and raising heart rate on a regular basis. Again though, it doesn't feel hugely part of the fitness and health tracking story on the GTR3 Pro.

A new health feature Zepp is making a big noise about is one-tap measurements, which captures four metrics from one reading to give you a quick but more comprehensive overview of your wellness.

The 45-second measurement captures heart rate, blood oxygen, breathing rate and stress. It's not the first watch to offer this type of feature. The Garmin Venu 2 does something similar as well. As far as how reliable those metrics are, well, we've had our say on heart rate and stress.

Blood oxygen measurements largely tallied up with a pulse oximeter we tested against while breathing rates were similar to the data recorded on a Garmin. The problem here is that it seems some and not all of these metrics tracked by this one-tap measurement is stored inside of the Zepp app.

Amazfit GTR3 Pro: Sports tracking

Amazfit GTR3 Pro review

Amazfit watches have always gone big on offering exercise tracking features. In our experience, it's lacked in comparison to what you can get from a Garmin, Apple Watch or Huawei Watch on this front.

Everything you could probably want is here though. There's support for the five key satellite systems including GPS to promise accurate outdoor exercise tracking. There's all the standard motion sensors to track indoor workouts and an altimeter to track elevation. There's over 150 sports modes and that covers the likes of running, cycling, swimming, climbing, hiking and indoor workouts like rowing and the Elliptical.

There's also automatic exercise recognition for eight activities, which includes running (indoor and out), pool swimming and walking.

New PeakBeats insights are clearly a take on Garmin-owned Firstbeat's heart rate based training analytics, letting you measure training load, VO2 Max and recovery time from exercise time.

Amazfit GTR3 Pro review

Run tracking compared: Amazfit GTR3 Pro (left) and Garmin Enduro (right)

Bottom line, the GTR3 Pro isn't a sports watch great, but it's certainly not the worst we've used to track exercise.

For runs, the watch is a comfortable to wear, the screen is easy to view and you get those core metrics like pace, distance along with some more advanced ones like heart rate, cadence, stride and even a breakdown of elevation.

We found distance tracking compared to a Garmin Enduro generally came up a little short. Heart rate accuracy was anywhere from 2-5BPM out from a chest strap on steady paced runs, so it held up well on that front.

Heading indoors for rowing and HIIT workouts on app Fiit, there's good and bad. For indoor rows against Garmin's row tracking it matched up for average stroke rate, but maximum heart rate was 15bpm higher than a chest strap monitor.

For HIIT workouts, heart rate average and maximum readings weren't great either. Maximum heart rate was significantly higher than a chest strap monitor as illustrated below.

Amazfit GTR3 Pro review

Heart rate at high intensity compared: Amazfit GTR3 Pro (left) and Garmin HRM-Pro (right)

In terms of those PeakBeats training insights, they're presented as workout status on the watch showing you training load from the past 7 days, VO2 Max and recovery time.

VO2 Max scores were off a couple of points from exercise tracked using a heart rate monitor chest strap.

A very light week of training suggested we were at optimal training load, while a short run suggested we needed to spend 49 hours to recover, which didn't seem accurate based on the intensity of the workout.

One big plus here is that Zepp does let you sync data over to third party fitness apps. That currently covers Strava, Google Fit and Relive. So you do have some flexibility as far as where your data can live.

As far as how reliable that data is on the whole, you're not getting supreme levels of accuracy here. But there's loads of data to get stuck into, and it's a fitness experience to grow into. Unless you're super invested in your training and performance, it's more than good enough.

Amazfit GTR3 Pro: Battery life

The GTR 3 Pro features a 450mAh capacity battery, which is actually smaller than the one packed into the GTR 2 (471mAh), and as a result those quoted battery numbers for a different levels of usage has dropped largely across the board.

Zepp Health says you can expect up to 12 days in typical use, up to 30 days in battery saver mode, up to 6 days in heavy usage and the promise of 35 hours of GPS battery life.

We'd say based on our time, we got around 5-6 days with a mix of anywhere from 10-15% daily drop off. That was with the screen brightness set pretty high, notifications enabled, sports tracking for 30 minutes to an hour a day and with continuous heart rate monitoring and stress monitoring enabled.

For an hour of running, the battery drop-off was generally 5%, which feels similar to what we've experienced on Amazfit watches previously.

Put the always-on display into play and that battery will noticeably take a hit and you're getting a few days as opposed to a week of watch time.

Like previous Amazfit, getting those big battery numbers relies with you being smart and thoughtful about the features you turn on and deciding whether you actually need them on a daily basis.

When it comes to charging, the Pro uses a similar-style charge to the previous GTR and takes around two hours to get from 0-100%, which means it's around half an hour quicker than the GTR 2, but still not that zippy at charging.

Amazfit GTR 3 Pro
By Zepp Health
With the Amazfit GTR 3 Pro, Zepp Health proves once again that it knows how to make an attractive smartwatch and how to pack it with software features aplenty. What it also shows is that it still has got a thing or two to learn on the software front because what's here is buggy. The promise of a proper smartwatch OS hasn't been truly realised here as yet either, though we're sure that things will improve on that front. Until it does, this is another Amazfit watch that looks good and works well, but still has a way to go to match the major smartwatch players.

  • Great-looking design
  • Lots of features
  • Easy to use
  • Software buggy
  • Fitness/wellness accuracy issues
  • App store lacking