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Amazfit

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

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Memorial Day Sale · 10% off was $279.99

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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, May 28
Order within 11 hours and 16 minutes
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Color: Onyx Black


Features

  • ULTRA-BRIGHT AMOLED DISPLAY: With peak brightness of 2,000 nits, the Amazfit smart watch delivers easy reading of maps and workout data in any light. Night mode and Glove Mode enhance visibility for clear viewing
  • DURABILITY FOR EXTREME CONDITIONS: This rugged smart watch, engineered with a 316L stainless steel bezel, withstands temperatures from -22F to 158F, and is water-resistant to 328 feet and can be used for freediving to a depth of 147 Feet
  • EXTENDED BATTERY LIFE: The Amazfit T Rex 3 offers over 3 weeks of power with typical use or up to 180 hours in GPS mode, providing long-lasting performance for hiking trips or outdoor activities
  • PRECISION NAVIGATION TOOLS: The smart watch for men and women provides free global maps with dual-band positioning. Six satellite systems offer fast, accurate GPS connections and precise turn-by-turn navigation
  • EXPANSIVE FITNESS TRACKING: This fitness watch offers 170plus workout modes and AI-generated training plans, providing real-time updates to guide your fitness journey from hiking to surfing

Description

The Amazfit T-Rex 3 tactical smart watch is designed for the adventurous individual seeking durability and versatility in their smartwatch. This smartwatch for men and women combines ruggedness with advanced technology, making it an ideal choice for outdoor enthusiasts. With a 48mm military-grade build, it resists extreme temperatures from 158°F to -22°F and is water- resistant up to 328 feet, perfect for surfing and freediving. This Amazfit watch boasts an impressive 27-day battery life, providing reliability even on extended expeditions. Its vibrant AMOLED display reaches peak brightness of 2,000 nits, allowing you to view maps and workout data clearly, even in bright sunlight or challenging conditions. As a GPS watch, it provides dual-band positioning with six satellite systems, ensuring precise tracking for your adventures. The Amazfit T-Rex 3 not only serves as a GPS watch but also includes health monitoring features, such as a heart monitor watch and a smart watch blood pressure monitor, keeping you informed of your biometric data. Stay connected with its capabilities as a smartwatch that can call and text, offering seamless communication. It is one of the premier smart watches for men and women, Android compatible, catering to those with dynamic lifestyles. Plus, with over 170 workout modes and AI training plans, this health tracker watch supports enduring fitness pursuits. Whether you seek a smartwatch for women or men smart watches, the Amazfit T-Rex 3 caters to a wide array of users, providing an extensive suite of functions and an authoritative design for any adventurer.

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: 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


Case Material Type: Stainless Steel


Water Resistance Level: Water Resistant


Sport Type: Basketball, Cycling, Diving, Hiking, Swimming


Human Interface Input: Touchscreen


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


Water Resistance Depth: 100 Meters


Language: English


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


Controller Type: Android


Metrics Measured: heart Rate,Blood Oxygen,Stress,Sleep Stages,Distance


Closure Type: Buckle


Shape: Round


Style Name: T-Rex 3


Color: Onyx Black


Band Color: Black


Connectivity Technology: Bluetooth, Wi-Fi


Wireless Compability: Bluetooth


Wireless Provider: Unlocked


Communication Feature: GPS


Sim Card Size: eSIM


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: IPX7


Brand: Amazfit


Model Name: Amazfit T-Rex 3 Smart Watch


Target Audience: Men, Unisex Adults


Age Range Description: Adult


Model Number: A2323-Black


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: 850058994703


Global Trade Identification Number: 03


Manufacturer: Amazfit


Unit Count: 1.0 Count


External Testing Certification: ANATEL


Battery Capacity: 700 Milliamp Hours


Battery Cell Type: Lithium Polymer


Battery Average Life: 27 days


Screen Size: 1.5 Inches


Display Type: AMOLED


Resolution: 480 x 480


Maximum Display Brightness: 2000 Nit


Band Width: 22 Millimeters


Item Weight: 2.4 ounces


Item Dimensions: 4.45 x 4.41 x 2.83 inches


Band Length: 220 Millimeters


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: Thursday, May 28

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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Top Amazon Reviews

    • Does everything and does it well. Amazing watch!
Color: Onyx Black
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
    • Durable and bright
Color: Onyx Black
Review Image by J. G.
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
Reviewed in the United States on January 31, 2025 by J. G.
    • High quality and full-featured.
Color: Onyx Black
Review Image by Bryan McGuire
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
Reviewed in the United States on April 14, 2026 by Bryan McGuire
    • Get this now!!!
Color: Onyx Black
Review Image by Lester Regacho
Review Image by Lester Regacho
Review Image by Lester Regacho
The media could not be loaded. If you’re adventurous like me and need watch, get this now! After a few weeks with the Amazfit T-Rex 3, I can say it’s a true powerhouse for anyone who loves the outdoors and staying active. This smartwatch is built tough — its military-grade body, 328-foot water resistance, and very easy to set up mean I can confidently take it with me on water sports adventures, hikes, and any unpredictable terrain. The AMOLED display is a standout. It’s super bright, so I have no issues checking maps or workout stats even in bright sunlight, and the night mode is easy on the eyes when I’m in lower light plus it’s scratch resistant. The battery life is exceptional; with over three weeks on a typical charge and hours of extended GPS, it’s perfect for long weekends away or days when I’m constantly on the move. One feature that’s been a game-changer for me is the one-tap health indicator through the Zepp Health app. It lets me check my heart rate, oxygen levels, and stress in seconds. The variety of workout modes keeps things interesting, and the personalized AI training plans help me stay on top of my goals. The GPS accuracy and offline maps have been reliable, and the built-in compass adds peace of mind when I’m exploring new areas. The watch faces are fun to switch up based on the day, giving the T-Rex a bit of a customizable edge. Overall, the Amazfit T-Rex 3 is a solid companion for outdoor enthusiasts and travelers who want both durability and smart functionality. It’s not just a smartwatch — it’s become an essential part of my everyday routine! ... show more
Reviewed in the United States on October 26, 2024 by Lester Regacho

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