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Amazfit T-Rex Smart Watch with GPS, Military Outdoor Sports Watch for Men,20-Day Battery Life, 1.3'' AMOLED Display,5 ATM Water Resistant, 14-Sports Modes, Heart Rate Sleep Monitor, Rock Black

4.3 4.3 out of 5 stars 3,298 ratings

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About this item

  • MILITARY STANDARD & 1.3” AMOLED DISPLAY -- A military standard smartwatch with 12 military certifications, enhancing the robustness and resistance to harsh environments. Boasting a 1.3” AMOLED color screen with an always-on display, making important information available simply by raising your wrist.
  • ULTRA-LONG BATTERY LIFE -- A deep power optimization gives the Amazfit T-Rex watch a 20-day ultra-long battery life on a single charge. Stays with the user over the long haul, allowing you to wear it without worry and never think about charging.
  • HIGH-PRECISION GPS -- T-Rex smartwatch uses a high-end Sony GPS chip and built-in highly precise dual-satellite positioning system. Signal efficiency has been significantly increased, making satellite search faster and positioning more accurate.
  • A Good Sports Companion -- This fitness watch has 14 built-in professional sports modes and is rated waterproof to 5ATM (50 Meters). You can wear it while swimming in pools and open water to meet the diverse needs of athletes.
  • Focus On Your Health -- The smartwatch is equipped with Huami's self-developed BioTracker PPG Bio-Tracking Optical Sensor, which performs 24-hours high-precision heart rate monitoring. The watch also issues reminders to stand up, which encourage you to develop healthy habits and become your best self.
  • A Practical Tool at Your Wrist -- The Amazfit T-Rex smartwatch comes with a wealth of smart functions, including weather forecast, event reminders, call reminders, app notifications, and more, offering a variety of practical tools to facilitate your daily work and life.
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Amazfit T-Rex Smart Watch with GPS, Military Outdoor Sports Watch for Men,20-Day Battery Life, 1.3'' AMOLED Display,5 ATM Water Resistant, 14-Sports Modes, Heart Rate Sleep Monitor, Rock Black
Amazfit T-Rex Smart Watch with GPS, Military Outdoor Sports Watch for Men,20-Day Battery Life, 1.3'' AMOLED Display,5 ATM Water Resistant, 14-Sports Modes, Heart Rate Sleep Monitor, Rock Black
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PriceCurrently unavailable.-22% $124.99
List:$159.99
-10% $179.99
List:$199.99
-25% $89.99
List:$119.99
-22% $139.99
New Price:$179.99
-12% $109.99
New Price:$124.99
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Customer Ratings
Battery life
4.6
4.3
4.6
4.3
4.7
4.5
Sleep tracking
4.0
4.1
4.3
4.1
4.2
4.1
Mobile App
3.7
4.0
4.1
3.9
4.2
4.1
Accuracy
4.7
4.1
4.0
4.4
3.7
Value for money
4.3
4.2
3.8
4.6
4.0
Sold By
Amazon.com
Amazon.com
Amazon.com
Jiant Solutions
Jiant Solutions
operating system
Amazfit OS
Amazfit OS
Zepp OS
Android, iOS
Zepp OS
Amazfit OS
display size
1.3 inches
1.3 inches
1.43 inches
1.39 inches
1.43 inches
1.3 inches
connectivity tech
GPS, Bluetooth, CNSS
Bluetooth
Bluetooth, Wireless
GPS
Bluetooth, Wireless
GPS
supported applications
Alarm, Calendar, Email, Fitness Tracker, GPS
Alarm, Calendar, Calorie Tracker, Heart Rate Monitor, Distance Tracking
Music Player, Voice Control, Fitness Tracker, Phone, Social Media
Breath Monitor, Heart Rate Monitor, GPS, Voice Control, Multisport Tracker
GPS, Voice Assistant
GPS, Calculator
input interface
touch screen
touch screen
touch screen
touch screen
touch screen
touch screen
wireless standard
bluetooth
bluetooth
bluetooth
bluetooth
bluetooth
bluetooth

From the brand


From the manufacturer

T rex smart watch
t rex

tough appearance

 20-day Ultra-Long Battery life

AMOLED Display Watch

Tough Appearance Solid Craftsmanship

The strength-enhanced design of the body details and internal structure take into account a sense of both strength and practicality, making it tough from the inside out, and making it a partner you can depend on to fight the long fight.

20-day Ultra-Long Battery Life

An advanced low-power chip, new circuit design, and deep power management and optimization give the Amazfit T-Rex a longer battery life. Stays with the user over the long haul, allowing you to wear it without worry and never think about charging.

1.3-inch AMOLED Display

The Amazfit T-Rex uses a 1.3-inch AMOLED color screen that supports all-day display, making important information available simply by raising your wrist.

High-Precision GPS

 50-meter Water Resistance

14 Exercise Modes

High-precision GPS Duble-satellite Positioning

The watch uses a high-end Sony GPS chip and built-in highly precise dual-satellite positioning system. Signal efficiency has been significantly increased, making satellite search faster and positioning more accurate, meeting your positioning needs among both urban jungles and canyon wilderness.

50-meter Water Resistance

The T-Rex is rated water resistance 5ATM. You can wear it while swimming in pools and open water to meet the diverse needs of athletes.

14 Exercise Modes

The Amazfit T-Rex has 14 built-in professional exercise modes. These are outdoor running, walking, outdoor cycling, treadmill, mountain climbing, trail running, outdoor trekking, indoor cycling, elliptical trainer, exercise, pool swimming, skiing, open water swimming, triathlon.

 Bio Tracker TMP PPG biological tracking

Urban-Outdoor enthusiasts

Nofication of Smartwatch

Bio Tracker TMP PPG Biological Tracking

The Amaz fit T-Rex is integrated with the Bio Tracker TMP PPG biological tracking optical sensor and an algorithm developed by Hua mi offering 24-hour ceaseless high-precision heart-rate monitoring and functions such as vibration alerts on heart rate too high or out of heartrate range while exercising.

Urban-Outdoor Enthusiasts

You can be close to nature and spend most of your time outside, rain or shine.

Doing various sports on a daily basis, you can enjoy the most outdoor sports such as running, trail running, hiking, climbing, skiing, etc…

Smart Nofication

Multiple Functions meet your Daily Activity.

The Amazfit T- Rex Smartwatch monitors your heart rate and sleep status like total sleep, light sleep, deep sleep and awake time. And the watch has rich and useful reminder functionality such as alarm clock, weather forecast, world clock, and incoming call. You also can control phone music playback from your watch.

Looking for specific info?

What's in the box

  • Smartwatch
  • Charging Pod
  • User Manual
  • Product information

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    Amazfit

    Amazfit T-Rex Smart Watch with GPS, Military Outdoor Sports Watch for Men,20-Day Battery Life, 1.3'' AMOLED Display,5 ATM Water Resistant, 14-Sports Modes, Heart Rate Sleep Monitor, Rock Black


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    Product Description

    Keep direction and time with this Amazfit T-Rex outdoor smartwatch. The rugged military-grade construction provides durability in harsh environments, while the powerful battery lasts up to 20 days on a single charge. Get a high-level exploration partner that boasts a high-end Sony GPS chip and built-in highly precise dual-satellite positioning system. This sport smartwatch has an always-on 1.3-inch AMOLED display to keep you updated on the time, and the 5 ATM water-resistant design allows for use in wet conditions. Comes equipped with Huami's self-developed BioTracker PPG bio-tracking optical sensor, which performs high-precision heart rate monitoring 24 hours a day. The fitness watch also issues reminders to stand up, which encourage you to develop healthy habits. What’s more, this watch monitors data such as exercise heart rate and exercise duration statistics, making your workouts safer and more efficient. Synchronize it with your phone to stay informed all day, you'll never miss any calls, texts, email, and social apps notifications. Compatible with Android 5.0 or iOS 10.0 and above smart device.

    Customer reviews

    4.3 out of 5 stars
    4.3 out of 5
    3,298 global ratings

    Customers say

    Customers like the battery life, quality, durability, and heart rate monitor of the wearable computer. For example, they mention it's a really good buy, it tracks heart rates, and is a decent activity tracker. That said, opinions are mixed on performance and accuracy.

    AI-generated from the text of customer reviews

    141 customers mention114 positive27 negative

    Customers like the battery life of the wearable computer. They mention that it has a great battery life, even if they are a heavy fitness user.

    "...To me, the biggest selling point besides the style is the battery life. Now, I'm not playing with this thing all the time...." Read more

    "...The crowning achievement, though? The battery life...." Read more

    "...Besides that issue, it does seem very well built and the battery life is AMAZING...I haven't been using GPS but just normal use I can easily go..." Read more

    "...I opted not to do that due to working a rotating shift. The battery life is PHENOMENAL!..." Read more

    121 customers mention90 positive31 negative

    Customers like the quality of the wearable computer. They say it is a very good watch, rich in features, and a really good buy. They also say the battery life is great and the watch is able to perform well. Customers also mention that the Amazfit app is very well thought out and useful. Overall, customers describe the watch as a solid device with a good screen.

    "This is a Fitness Tracker, first and foremost. It's a wonderful watch, as well! Amazfit supplies a fair amount of changeable faces...." Read more

    "Looks great!! Great product! Don’t waste your money on Apple Watch, Samsung or Garmin, this watch everything those watches do for 1/4 of the price...." Read more

    "...good in in any settings, great battery life and overall a competent performing watch if you don't ask too much of it...." Read more

    "...The companion app is a bit bloated and hard to navigate at first...." Read more

    93 customers mention80 positive13 negative

    Customers like the durability of the wearable computer. They mention that the built quality is first rate, it's long-lasting, and reliable. Some say that the watch is unbelievably tough.

    "...Besides that issue, it does seem very well built and the battery life is AMAZING...I haven't been using GPS but just normal use I can easily go..." Read more

    "...If you want a smart watch that is tough, loaded with features, and costs a fraction of what the other big brands cost, you won't be disappointed!" Read more

    "...First of all the built quality is first rate, comfortable to wear and looks good in in any settings, great battery life and overall a competent..." Read more

    "...It's solid." Read more

    83 customers mention60 positive23 negative

    Customers like the heart rate monitor. They mention that it tracks sleep, heart rates, work out information, steps, and sleep. Some say that the watch keeps an accurate count of their steps and heart rate.

    "...The watch has a heart rater monitor & that seems to work well.To me, the biggest selling point besides the style is the battery life...." Read more

    "...This watch is loaded with data, if that's what you're into. It tracks sleep, steps, GPS, different workouts, weight, etc...." Read more

    "...Activity tracking, step counter, sleep tracking, GPS, everything else it can do, it does it well.. and the battery life.. oh my... just look at this..." Read more

    "...The T-Rex however seems to have trouble tracking my sleep (most nights it doesn't show anything at all) and the big thing for me is the step..." Read more

    69 customers mention57 positive12 negative

    Customers like the value of the wearable computer. They say it's an excellent value and a decent activity tracker. Some mention that it'll work good for the price.

    "...Overall it seems like a decent watch for the price, but if you're really counting on accurate sleep and steps then all I can say is it needs a bit..." Read more

    "...This is a great fitness watch for $140! I hope to see more watch faces in the near future, as well as more customization for the faces...." Read more

    "...In summary, the Amazfit T-Rex is an excellent value and a decent activity tracker, with the potential to become great activity tracker, with a few..." Read more

    "...Last, the price takes the cake. Its cheap enough to take a gamble on, but not so cheap you feel like you bought a fake...." Read more

    59 customers mention59 positive0 negative

    Customers are satisfied with the appearance of the wearable computer. They mention that it has good looks, is a great compromise for style, and is classy. The box and packing are also very nice, classy, solid, and protective. The watch also looks and feels great, and it still looks unblemished. The display is also very good, and the performance is good too.

    "...Screen is beautiful, easy to read and navigate with buttons or swiping. The phone app is okay, not great and could use some polish...." Read more

    "Looks great!! Great product! Don’t waste your money on Apple Watch, Samsung or Garmin, this watch everything those watches do for 1/4 of the price...." Read more

    "...the built quality is first rate, comfortable to wear and looks good in in any settings, great battery life and overall a competent performing watch..." Read more

    "...was 1 long battery life 2 rugged/waterproof design 3 heart monitor 4 good looks. This watch has them all and I am very happy with my purchase...." Read more

    109 customers mention56 positive53 negative

    Customers are mixed about the performance of the wearable computer. Some mention that the functionality is decent, the app works well, and the setup was easy. However, others say that they have functional issues and find the product virtually useless.

    "...A few other things to note. It has a step counter & seems to work great. It has some type of water resistance rating. I've showered with it on...." Read more

    "...controller app on the watch after each change, so I find it virtually useless...." Read more

    "...The Message and App notification feature works very well, as does the pedometer and heart rate monitor.The crowning achievement, though?..." Read more

    "...the return period on Amazon, the auto brightness got stuck and no longer worked. It required turning off and back on...." Read more

    50 customers mention28 positive22 negative

    Customers are mixed about the accuracy of the wearable computer. Some mention that the GPS is very accurate, while others say that the pedometer is highly inaccurate, the step tracker is way off, and the distance tracker a bit off.

    "...To the Apps merit, it tracks metrics very well and plays nicely with google fit...." Read more

    "...that uses your heart rate to help track calories, this one only tracks while moving. Watch faces do not seem very customizable...." Read more

    "...It tracks sleep, steps, GPS, different workouts, weight, etc. This is a great fitness watch for $140!..." Read more

    "...-It keeps setting itself to metric units, despite me setting it to Imperial...." Read more

    Almost a perfect 5 Star!  Best smartwatch I have ever owned to date!
    4 Stars
    Almost a perfect 5 Star! Best smartwatch I have ever owned to date!
    (GENERAL)- Have had for about a week now.- I have a Pixel 4 XL Android OS 10- Don't use it for fitness.- Use it for time, date, notifications and sleep tracking.(PROS)- PRICE!- Wicked long Battery life, removes the life battery anxiety.- Always on display option, removes the annoying wake up move your arm wrist flick to see the time frustration.- Sleep tracking is dead on. Kids wake me up due to accident in bed. Shows the exact times I woke up and went back to bed. Sleep tracking hands down was the sleeper bonus feature, I was not expecting.- Very fast screen transitions. Not laggy at all.- Amazfit Android is wicked simple to use. Love it way better then Android WearOS and Google Fit, as I have trouble making Google apps work with Google Gsuite accounts (ridiculous).- Watch setup was wicked simple to setup.- Chinsy watch strap is shockingly not that bad! I kind of like the stretchy elastic material.- Screen is bright and visible indoor and outdoors. Does the job.- Water proof for swimming, beach, rain, washing hands / arms, etc.(CONS) Fix these and I will give it 5 perfect stars!- #1!! No font size change options. You have bad older eyes, tuff luck. There are some Russian hacks for font changes.. but do you really want to upload that to your watch and grant access to your phone data. Better off just getting readers. Hope they fix or give this a feature change in a future OS update.- Watch face choices are very limited. But are alright. Get the job done. Hope they add more in future software updates.- Optional always on display only has 2 watch face choices. A digital or analog. Again very poor variety choices but gets the job done.- Needs access to my Android contacts to show caller name. If you deny access you only see the phone number only. I suspect this is by design, and would be an issue for all smartwatches. Unfortunately I do not know what this company is tracking / data mining. So I do not grant access to my sensitive data. All the others android OS access denies, appear to be OK or little to no effect on watch.- Sleep tracking records my pre-sleep movie time, as sleeping. Makes sense why it does this. But wish there was some creative for it to know sleeping vs motionless in bed watching a movie. in short.. shows I am sleeping longer then I really am due to my bad habit.- I sometimes get duplicate and triple notification history. It alerts one at a time,but notification history shows duplicate entries. Might be something I am doing wrong. But I suspect its a software update that would be able to fix. This is not an issue for me.. as I read the notifications realtime as they come in.. vs scrolling through notification history over the last x hours.- Notifications are basic and short. Wish it displayed more of an email, etc. But gets the job done. I mostly want or needed the watch to show a brief anyway. I.e oh that's a vendor email, I can ignore that, or pull out phone later or read later on desktop. So the brief notification is honestly what I need 99% of the time. But sometimes I find I wish it showed more.- Watch band is proprietary. Not a typical normal shape or size. You can buy replacements. But options are very limited. Wish they designed the band a normal standard type.(SUMMARY)- Best smart watch I have had to date! Wife has the Fossil GEN5 Watch OS. Frustrating as all get out. Slow screen transitions. Battery life is very poor. Has to charge nightly. Can't do sleep tracking, because of poor battery life.- Would call this a semi-smart watch, and not a full smart watch. ie. no voice assistant, can't reply to notifications, no speaker or microphone, cant make calls with the watch, no 3rd party app support, etc. But I honestly would prefer all of those tradeoffs for superior battery life.- I suspect my normal day to day with this watch, will be, charge while in the shower, and wear it the rest of the time. I suspect it will be at 100% charge every time that way. Right now, I am stress testing no charge, no GPS, notifications, always on display, heart and sleep tracking, and will post photos as I get to zero. Based in what I am getting now, I suspect I'll get 6-7 days of always on battery life. If so, that's still champion. Can go on vacation without a charger!
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    Top reviews from the United States

    Reviewed in the United States on October 5, 2020
    One person found this helpful
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    Reviewed in the United States on October 20, 2020
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    5.0 out of 5 stars Great Customizable Fitness Tracker!
    Reviewed in the United States on October 20, 2020
    This is a Fitness Tracker, first and foremost. It's a wonderful watch, as well! Amazfit supplies a fair amount of changeable faces. The Message and App notification feature works very well, as does the pedometer and heart rate monitor.

    The crowning achievement, though? The battery life. I finished charging the watch out of the box (less than 60 min from 2/3rds charged) and slapped it on my wrist. That was October 16th. Today is the 20th, 4 full days of use, and I'm sitting at 73%. I've kept the GPS on factory default, heart rate monitoring on, and sleep tracking on. The only thing I wish Amazfit and every other fitness tracker/smart watch company would do is add a "pause" or "driving" feature for the pedometer. I would rather finish my day knowing I forgot to turn it back on than knowing that 1500+ steps were obtained while driving. Or the ability to edit my steps in the Zepp App (apparently replaced the Amazfit App).

    That brings us to the App. I'm not thrilled that a company offering $120+ fitness trackers has an app that is not quite dummy-proof. The functions are basic and, as far as I can tell, I have no way to edit things such as the Pedometer or my sleep time. To the Apps merit, it tracks metrics very well and plays nicely with google fit. Unfortunately, it doesn't really provide very much information *about* the metrics.

    Overall, I wanted a smart watch. What I received is a pleasant surprise. Though this is no powerhouse samsung or higher end fitbit, it does an amazing job, is waterproof (I detail cars, kind of important), shock resistant, and fits my large wrist comfortably. I'm especially excited that I can use it for more than 3-4 days without recharging!
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    Customer image
    Reviewed in the United States on October 20, 2020
    6 people found this helpful
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    Top reviews from other countries

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    Negratius
    5.0 out of 5 stars Excelente pelo preço
    Reviewed in Brazil on March 7, 2021
    2 people found this helpful
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    Jacobo
    5.0 out of 5 stars Si buscas resistencia y duración de batería es excelente opción.
    Reviewed in Mexico on December 17, 2020
    14 people found this helpful
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    Sinolonglive
    5.0 out of 5 stars This watch's battery is AWESOME
    Reviewed in Canada on October 17, 2020
    Geeko Tech
    5.0 out of 5 stars Ottimo sotto tutti i punti di vista
    Reviewed in Italy on February 17, 2022
    neo77
    1.0 out of 5 stars Livreur COLIS PRIVEE = voleur
    Reviewed in France on August 31, 2020
    3 people found this helpful
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