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Amazfit

Amazfit T-Rex 3 Rugged/Military Smart Watch 48mm, 27 Day Battery, GPS (with Privacy), Offline Maps, 328 Feet Water-Resistant, 170 Fitness/Sport Modes, AI, Voice Control, for Android or iPhone, Lava

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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, May 26
Order within 12 hours and 28 minutes
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Color: Lava


Features

  • Large, Bright Display: The AMOLED display can reach peak brightness of 2,000 nits; read your maps and workout data easily in any light. Night mode reduces eye strain in the dark, and Glove Mode keeps the screen responsive when wearing 2mm thick gloves.
  • Built for Adventure: Endure any challenge with a 316L stainless steel bezel and buttons. The military-grade body can resist 158 heat and -22 cold. Water-resistant to 100m, wear it while surfing, or for freediving to a depth of 45m.
  • Over 3 Weeks of Battery Life: The Amazfit T-Rex 3 can last for 27 days with typical use, 42 hours in GPS Accurate Mode, and up to 114 hours in GPS Long Battery Life Mode. With some settings disabled, GPS usage can even last up to 180 hours for long hikes.
  • Free Maps and Advanced GPS: Download free global, contour, and snow maps. Track your adventures accurately with dual-band positioning, backed up by 6 satellite systems for fast connection. Get turn directions from your smartwatch as you go.
  • 170plus Workout Modes and AI Training Plans: Explore 170plus workout modes including hiking, strength training, ultramarathon, surfing, skiing, and more. Get personalized AI-generated training plans, real-time performance updates, and more.
  • Take Charge with AI: Fully control your smart watch with your voice thanks to Zepp Flow powered by OpenAI's GPT-4o technology, and send speech-to-text message replies to Android apps like WhatsApp.

Description

Amazfit T-Rex 3 is a rugged outdoor smartwatch for outdoor and fitness athletes. Engineered to endure 27 days of battery life, it withstands temperatures from -22°F to 158°F and is water-resistant to 328 feet. The 1.5-inch face features a bright 2,000-nit screen to display GPS maps, workout data, and sleep recovery information. Amazfit T-Rex 3 has best-in-class data privacy and GPS disablement for total privacy, and convenient AI-guided voice control for easy adjusting of watch settings and speech-to-text message replies.

Operating System: Zepp OS 4.0


Memory Storage Capacity: 26 GB


Special Feature: Altitude Assistant, Compass, Freediving Certified, Maps, dual-band GPS


Battery Capacity: 700 Milliamp Hours


Connectivity Technology: Bluetooth, Wi-Fi


Wireless Communication Standard: 802.11bgn, Bluetooth


Battery Cell Composition: Lithium Polymer


GPS: Built-in GPS


Shape: Round


Screen Size: 1.5 Inches


Operating System: Zepp OS 4.0


Additional Features: Altitude Assistant, Compass, Freediving Certified, Maps, dual-band GPS


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: Touchscreen


Supported Application: GPS, Messages, Multisport Tracker, Voice Assistant, Weather


Water Resistance Depth: 100 Meters


Language: English


Supported Satellite Navigation System: BeiDou, GLONASS, GPS, Galileo


Metrics Measured: Motion Sensors


Shape: Round


Style Name: T-Rex 3


Color: Lava


Band Color: Red


Connectivity Technology: Bluetooth, Wi-Fi


Wireless Compability: 802.11bgn, Bluetooth


Wireless Provider: Unlocked


Communication Feature: Bluetooth, GPS


Compatible Devices: Android 7.0 and above, iOS 14.0 and above


Compatible Phone Models: Android 7.0 and above, iOS 14.0 and above


Memory Storage Capacity: 26 GB


Warranty Type: Limited


Waterproof Rating: IP68 o superior


Brand: Amazfit


Model Name: Amazfit T-Rex 3 Smart Watch


Target Audience: Men, Unisex Adults


Age Range Description: Adult


Model Number: A2323-Red


Built-In Media: Magnetic charging base (no USB Type-C cable), Smart Watch, User Manual


Warranty Description: 1 year manufacturer


Wearable Computer Type: Smart Watch


UPC: 850058994734


Manufacturer: Amazfit


Unit Count: 1.0 Count


Battery Capacity: 700 Milliamp Hours


Battery Cell Type: Lithium Polymer


Screen Size: 1.5 Inches


Display Type: AMOLED


Resolution: 390 x 390


Maximum Display Brightness: 2000 Nit


Band Width: 22 Millimeters


Item Weight: 0.15 Pounds


Item Dimensions: 4.4 x 4.5 x 2.9 inches


Item Dimensions D x W x H: 1.91"D x 1.91"W x 0.54"H


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 26

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.

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This is quite simply the very best smart watch I've ever owned. It doesn't just beat the name brands, it far surpasses them. I've owned 2 Samsungs, Garmin, Google and a Fitbit. Nine of those even remotely compared to this. I've owned it for about 8-9 months now and it never ceases to amaze me how much better it is than Anything else I've ever owned. Battery life is incredible. I typically get about 3 solid weeks before it needs charged. All the measurements it records (steps, distance, heartbeat, blood oxygen, etc are accurate and precise. It's indestructible and it looks good too. I have absolutely nothing negative to say about this amazing watch. ... show more
Reviewed in the United States on May 5, 2026 by Shawn S
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I switched from an Apple Watch to the TRex. The main reason I wanted to switch was battery life. The Apple Watch at best could get 24-30 hours, but general use 24hrs was my average. I looked at the Garmin Fenix 8 but I really just didn’t want to pay that price. I watched review after review and felt the TRex was the right fit for my needs. Concerns before I purchased: - messaging - calls - no Speaker I have had the device now for about 45 days. Durability - this is a solid watch. I have been doing a full kitchen gut and remodel. I have warn this watch the whole time and it looks like me. No scratches or evidence of any damage. Battery Life - I think confidently 18 days is consist. The first few days I was messing with the settings and looking it over a lot so battery was only 10 days after charging to 90%. I think you could get even more if I turned off notifications and brightness down. Navigation and menus - the OS is really smooth. Very fast to respond. I like the mix of buttons and touch screen. Especially when you have gloves on and such Insights and Health - I think it is far more accurate on steps than my Apple Watch. I wore both watch’s on the same wrist for a full day and I never realized how many non steps my Apple Watch was picking up. I was sitting and typing at my desk. The Apple Watch picked up a nearly 100 phantom steps. The TRex picks up stress pretty well. It notices when I am thinking about a topic that is stressing me, like “is my flooring going to arrive in time?” Or “we only have x hours to complete this before the contractors are here!” Lots of good health habit reminders and such. I am looking forward to getting more use out of them once this project is over. Price, quality, and worry - when you have an expensive watch you worry about damage. It’s not to say I don’t worry about this watch, but when it’s 1/3 or 1/5 of the price of the other watches you looked at, it’s nice to be able to just enjoy it. Lots of compliments on its appearance and screen brightness. A lot of watch for the process The gaps: I do have moments I wish I could do a voice reply to a text or quick reply, but Apple doesn’t allow that. No speaker is a kind of a bummer and I typically don’t pair my headphones to my watch, but that would be nice to be phone free for a run or workout. Overall, I really like the watch. I thought I would miss the Apple Watch integrations, but I don’t. The TRex still has the camera remote and find my phone features. I don’t really notice anything yet that I miss from my Apple Watch that I would say is a “send it back!” Thing. Updates are fast and so far little tweaks will continue to improve it. I would by it again. ... show more
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Review Image by Bryan McGuire
After nearly a week of use, I love this watch. It's not very large or heavy, so wearing it non-stop is a breeze. The companion app, Zepp, works very well for tracking your health and workouts. Being that I wanted something more durable, the build quality is excellent as is the battery life. I lose around 5% charge per day, which is very acceptable. Watch face options are plentiful. In a nutshell, the best smartwatch I've owned. One I can recommend. ... show more
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After using for over 2 months, I can say that this smart watch has more "whistles and bells" than this 68 year old man will ever use, such over 170 sport modes, sleep and health tracking, life coach, etc. I am an avid hiker, and I bought the watch for the mapping features. I download maps of the area where I'm going to hike, and the 6 satellite dual band GPS system gives accurate turn by turn directions, if I get lost. The watch tracks my steps and miles accurately, and the heart monitor is also very good. That's all I want it to do! The amoled face is bright, and large enough for me to use without wearing reading glasses. It is very rugged (although I did buy a protector for the crystal) and I have found that the battery lasts at least 20 days with fairly heavy use. The plastic band is comfortable and the watch looks good even on my slender wrist. I didn't want to spend $400.00 for a smart watch and I am very happy with this one! ... show more
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Still some of the best smart watches around. I used to own a lot of different watches from other known manufacturers and now they are in a drawer discarded for lack of use. And in another drawer I have all my amazfit watches. I have many but my favorite are the T-Rex watches. I own the T-Rex 2 and now the T-Rex 3. I am still trying to figure out all the T-Rex 3 features and my review will be incomplete for now but I still like this watch. The battery life is less than my T-Rex 2 but it is still a solid 2.5 weeks on how I use it. I also think that I disabled the map feature because it does not show the enhanced display I saw on the advertisement. But like I mentioned, I am still getting used to the watch. The steps compared to my T-Rex 2 are less but more accurate because I think that my T-Rex 2 was more generous. The workout features are great and have a lot more options. The display is larger and better to look at for guys like me with poor eyesight. When I am at the gym I can see things a bit better through the sweat and tears. The notifications are good but sometimes the delay between my phone and the watch is a bit long. I am still trying to figure out things but so far is a good product and a good purchase for me. And the price was good enough for my budget. The T-Rex watches are durable and I really like them. It is too bad that I only wear one watch because I have plenty of amazfit watches to fill one of my arms. When I think about the other watches I feel bad that they may never see the light of day. But I like the T-Rex 3 because because it has a large display and I can see things a lot better. Overall it is a good purchase for me. ... show more
Reviewed in the United States on August 12, 2025 by Happy Juan

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