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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 5 left in stock, order soon!
Arrives
Thursday, Oct 29
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At a glance
- Condition
- New
- Color
- Black
- Size
- 44mm
- Model
- A2549
- Storage
- 32 GB
- Memory
- 64 MB
- Screen size
- 1.32 in
- Warranty
- 1 year manufacturer
- Works with
- Smartphone
Features 8
- RUGGED BY DESIGN: The T-Rex 3 Pro smart watch is adventure-ready with sapphire glass, a bright 3000-nit AMOLED display, and a titanium alloy bezel and buttons - available in 48mm or 44mm to match your style.
- OFFLINE MAPS WITH ROUTE PLANNING: Stay on track anywhere with offline POI search, auto rerouting, round-trip route creation, and detailed ski maps - your ultimate outdoor companion for every adventure.
- INDUSTRY-LEADING GPS: Accurately track every move, even under tall buildings or dense tree cover. Dual-band support from six satellite systems delivers fast, reliable connection, through rugged hikes to intense trail runs.
- BUILT FOR EVERY ADVENTURE: With 180+ sport modes, HYROX training, 10 ATM water resistance, and diving certification to 45m, the Amazfit T-Rex 3 Pro activity tracker is built to excel from ocean depths to mountain peaks.
- BUILT-IN FLASHLIGHT: Stay visible with a built-in two-color flashlight. Switch between soft red for low interference, bright white for clarity, or Turbo Mode for maximum visibility. An SOS signal offers added peace of mind when needed.
- UP TO 17 DAYS OF BATTERY LIFE: Built to keep up with you, this watch delivers exceptional battery life - up to 17 days - so you can focus on the journey, not the charger. Whether on multi-day treks or remote missions, it stays powered when you need it.
- EVERY BEAT COUNTS: The T-Rex 3 Pros BioTracker sensor delivers precise heart-rate tracking. Pair with the Helio Strap for a 24/7 training and recovery system, ensuring every hike, race, and workout is backed by the most reliable data possible.
- STAY CONNECTED WITHOUT STOPPING: Take Bluetooth calls from the trail, use Zepp Flow to reply to instant messages hands-free (connection to Android phone required), listen to training notifications, and more with the built-in speaker and mic.
Description
Whether you are pushing your limits on a rugged trail, diving beneath the surface, or training for your next big race, the T-Rex 3 Pro is built for those who train without compromise. Crafted with tough, premium materials, it is made to withstand the harshest conditions while delivering precise tracking and performance insights. With all-day comfort and exceptional battery life, it keeps you connected to your goals and in control of every moment - no matter where your adventure takes you.
Specs 48
| Operating System | Zepp OS |
|---|---|
| Memory Storage Capacity | 32 GB |
| Special Feature | Activity Tracker, GPS, Multisport Tracker, Notifications, Voice Control |
| Battery Capacity | 200 mAh |
| Connectivity Technology | Bluetooth |
| Wireless Communication Standard | Bluetooth |
| Battery Cell Composition | Lithium Polymer |
| GPS | Built-in GPS |
| Shape | Octagonal |
| Screen Size | 1.32 inches |
| Additional Features | Activity Tracker, GPS, Multisport Tracker, Notifications, Voice Control |
| GPS Geotagging Functionality | Built-in GPS |
| Band Material Type | Silicone |
| Water Resistance Level | Water Resistant |
| Sport Type | Basketball, Cycling, Diving, Hiking, Swimming |
| Human Interface Input | Buttons, Touchscreen |
| Supported Application | GPS, Multisport Tracker, Voice Assistant |
| Water Resistance Depth | 100 meters |
| Language | English |
| Supported Satellite Navigation System | BeiDou, GLONASS, GPS, Galileo |
| Metrics Measured | Blood Oxygen (SpO2), Heart Rate, Sleep Duration, Stress |
| Closure Type | Buckle |
| Style Name | Rugged/Sporty |
| Color | Black |
| Band Color | Black |
| Wireless Compability | Bluetooth |
| Cellular Technology | Dual Band GPS |
| Communication Feature | Bluetooth |
| RAM Memory Installed | 64 MB |
| Brand | Amazfit |
| Model Name | T-Rex 3 |
| Target Audience | Men, Unisex Adults, Women |
| Age Range Description | Adult |
| Model Number | A2549 |
| Built-In Media | Magnetic charging base (no USB Type-C cable), Smart Watch, User Manual |
| Wearable Computer Type | Smart Watch |
| UPC | 850071618815 |
| Manufacturer | Amazfit |
| External Testing Certification | 06307-25-15739 |
| Battery Cell Type | Lithium Polymer |
| Battery Average Life | 17 days |
| Display Type | AMOLED |
| Resolution | 240 x 240 |
| Maximum Display Brightness | 3000 nit |
| Band Width | 20 millimeters |
| Item Weight | 1.65 ounces |
| Item Dimensions | 0.52 x 1.76 x 1.76 inches |
| Warranty Type | Limited |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Oct 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Amazing smart watch at a great price!
Color: Black
Size: 44mm
Ill start by saying this is my first wearable in almost 10 years and I dont have alot of experience with other wearables or smart watches. That being said, I tend to research things for weeks before I buy. After hours of YouTube reviews and comparisons, many Grok queries, and what feels like endless google searches i finally pulled the trigger and bought this watch. All I can say is wow... this watch literally does everything I wanted it to plus alot more! My primary wants in a watch were telling time (obviously), sleep tracking, heart rate/ health monitoring, and being durable (i work in construction). This thing accomplishes all of that easily. It also has other features that I didnt know I needed but cant see myself going without now, most notably the built in flashlight. Its bright and incredibly handy. Notifications are easy to read and respond to while phone calls are clear for both parties. The battery life is great even though im only getting about a week out of a full charge. Thats by my own choice though because i turned the heart rate check rate up. Also super impressed with how user-friendly both the watch and the accompanying phone app are. The phone app gives you a more in depth look at all the health metrics that your watch cant give you due to screen size limiting. Once I decided I wanted to go with the T-Rex 3 pro I had a hard time deciding between the 44mm and 48mm options. I ended up going with the 44mm because I didnt feel like my wrist size was suitable for the bigger watch and im happy with my choice. Ill post a picture of the watch on my wrist which is roughly 7inch diameter. Honestly I could write more great things to say about this watch but im not going to go into all the tiny details. If your in the market for a rugged/durable smart watch I definitely recommend this one. Its basically a Garmin finix 8 at a fraction of the price.
...
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Reviewed in the United States on July 27, 2026 by Garrett
awesome
Color: Tactical Black
Size: 48mm
This watch it so cool, has so so many more features than my Garmin and cost pretty much the same price. Top Notch build quality, rugged, nice and bright, everything's adjustable, easy menu to navigate. Love the touch sensitive selectable areas on the screen, that's just a game changer. Tons of biometrics tons of watch faces and apps. I'm hoping the next model is a little Slimmer but no big deal the battery lasts weeks with everything almost everything running. My only complaint is that the music downloading to the device was extremely difficult, never really got it to work quite well, only got a few tracks loaded and gave up. This part can seriously use some work. My Garmin was pretty cool in this area cuz you could plug it into your computer and look up the songs on the device almost like a ext. drive which this one does not allow you to do . but not a huge deal cuz I don't use that much.
...
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Reviewed in the United States on July 17, 2026 by Degoba
This watch rocks
Color: Tactical Black
Size: 48mm
Battery life is insane. You can actually use all the features on long hikes without having to worry about the battery at all. Screen is nice and bright, easy to read in direct sun. Auto adjust for ambient light. Titanium and sapphire crystal are holding up very well after rough use. Very smooth UI. GPS tracking is dead on through urban or forests. Offline maps are easy to use and work perfectly once downloaded into watch from app. Quick GPS lock. Very easy to see and set waypoints, or backtrack your trail on the map from the watch itself. Microphone and speaker is a game changer for spoken directions while hiking, voice calls, and using the integrated AI that runs chat GPT. Flashlight is beyond useful. Vibration alerts are nice and strong. Charges quickly. Tons of watch faces and apps to download with plenty of memory for everything you want. All sensors seem to work within tolerances along with the fitness tracking and goals. This thing beats the snot out of my Garmin.
...
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Reviewed in the United States on August 6, 2026 by kgb
Better than expected
Color: Tactical Black
Size: 48mm
When I saw the "frequently returned " I eas a lil skeptical. But i went ahead and ordered it, i can honestly say I've been impressed so far. Im coming from a Samsung ultra, which was nice but overkill. Battery was horrible. The trex on the other hand is more my style. Simple and effective. Battery last for days and a quick 15 top off will bring it from 30% to about 80% basically faster and last longer than my Samsung. The apps work fine for me. Im not athlete, but enjoy a occasional hike or walk, which gets tracked well. I also use it as a route review for motorcycle. Just set up outdoor cycle, and it will track your speed and path. It doesn't play music like the Samsung, or make stand alone calls, but thats cool with me. Also love the voice assistant, wish it supported more topics, but its great for watch related things. And the biggest game changer is the flashlight, i use it all the time. Imo id pick this over thr Samsung, its cheaper, better battery, basically the same features and more comfortable.
...
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Reviewed in the United States on August 20, 2026 by kbs dad
17 Days!
Color: Tactical Black
Size: 48mm
I absolutely love my Amazfit T-Rex 3 Pro! It offers the perfect combination of rugged durability, great design, excellent fitness and GPS features, and outstanding value. The battery life is easily one of my favorite things about it. Mine lasts an impressive 17 days between charges, even with regular workout tracking and everyday use. It is so refreshing not having to constantly think about charging my watch. It feels tough enough to handle anything while still looking sharp enough to wear anywhere. For anyone looking for a durable, feature-packed fitness watch with incredible battery life, this watch is very hard to beat. I could not be happier with my purchase!
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Reviewed in the United States on July 30, 2026 by Rami Aboumahadi
So far everything works great as described
Color: Tactical Black
Size: 48mm
The watch is overall pretty great, comfortable and big enough so I can choose a lot of data to view or just a large clock display. It took a bit to figure out how to download music but this is how...To download music to your watch, you have to turn off your cellular signal and the VPN (if using one). Make sure you're Wi-Fi is on 2.4 GHz on the watch and then your phone. The download has to be an MP3 or flac file that is already stored/saved on your phone. It will not work for streaming services that I know of. Use the music icon on the device app. Battery life is great, I've only charged the phone to full capacity once when I received it and it is at 48%. I use the flashlight, fitness tracking and music... Awesome that I can track all my health and sleep. A little something to help keep me accountable. Very nice.
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Reviewed in the United States on July 31, 2026 by John Condliffe
Trex 3 Pro is great
Color: Tactical Black
Size: 48mm
I love this watch it works great. The display is amazing. The only limitation I have is it cannot respond to messages on iphone but I can see them. Not having Apple Pay is not really a big limitation for me as I use my phone for that . The battery life is amazing and exercise tracking great as well. I enjoy the health tracking with the zepp app. I have had the watch for sl over a month and I still think it is great. I do a lot of exercise tracking with it and it seems with all that the battery will last about 6 days although I usually charge it at 30%.
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Reviewed in the United States on August 13, 2026 by Ken Diamond
Watch is worth the money.
Color: Tactical Black
Size: 48mm
Great fitness, pulse and oxygen measurements, the watch face is big enough to see the smaller print plus multiple watch faces to choose from. Functionality has a bit of a learning curve and after it's easy to use all the functions. It has a great sleep tracker. The watch will receive and show messaging from cel phone. Watch has a great golf app with more free course downloads than I will ever play with GPS tracking. Battery charge is great lasting days.
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Reviewed in the United States on July 8, 2026 by Jon