Amazfit T-Rex


  • 12 Military Certifications
  • Rugged Body
  • 20-day Battery Life
  • Always ON AMOLED

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Unleash Your Instinct with the Amazfit T-Rex super durable smartwatch. This model prides itself with 12 Military Certifications, a Rugged Body, 20-day Battery Life and Always ON AMOLED Display.

Key Features

12 Military Grade Certifications – Resistant to Harsh Environments. Robustness and reliability are particularly important for outdoor smartwatches. Amazfit T-Rex passed 12 military-grade certifications, ensuring its robustness and resistance to harsh environments.

Tough from The Inside Out. Tough Appearance, Solid Craftsmanship – The Amazfit T-Rex’s shape is tough, solid with distinct angles, and brimming with strength. 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 rely on.

20-Day Ultra-Long Battery Life. Fighting The Wilderness with You – A new circuit design especially developed for Amazfit T-Rex, an advanced low power-consumption chip, and a deep power optimization gives 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. (Note: Battery life may vary based on usage, settings, and many other factors, meaning that actual results may vary.)

1.3-Inch AMOLED Colour Screen and Always-On Display – Choose A Watch Face to Match Your Personality. The Amazfit T-Rex uses a 1.3-inch AMOLED colour screen. Also supports an always-on display, making important information available simply by raising your wrist. Moreover, the variety of gorgeous watch faces allows you to fully express your personality. (Note: Turning on the all-day display will reduce battery life. You can turn it on and off in the watch settings.)

High-Precision GPS Dual-Satellite Positioning – Optimised Efficiency, Faster and More Accurate Positioning. The watch uses a high-end Sony GPS chip and a built-in highly precise dual-satellite positioning system. We have also optimised the watch body materials and internal layout, and even highly optimised signal reception to account for interference from the arm while wearing. 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.

Water Resistant to 50 Meters. 14 Sports Modes – The Amazfit T-Rex has 14 built-in professional sports modes and is rated waterproof to 5ATM. You can wear it while swimming in pools and open water to meet the diverse needs of athletes. The watch also monitors data such as exercise heart rate and exercise duration statistics, making your workouts safer and more efficient.

All-Day Heart Rate Monitoring –  Focusing On Your Health. The watch is equipped with Huami’s self-developed BioTracker™ PPG Bio-Tracking Optical Sensor, which performs high-precision heart rate monitoring 24 hours a day. The watch also issues reminders to stand up, which encourage you to develop healthy habits and become your best self.

Weather Notification, Call Reminder. More Practical Tools at Your Wrist – The Amazfit T-Rex has a wealth of smart functions, including weather forecasts, event reminders, call reminders, app notifications, and more, offering a variety of practical tools to facilitate your daily work and life.

Model NameAmazfit T-Rex
Screen1.3”AMOLED, Resolution 360 x 360
Touch ScreenCorning Gorilla Glass 3 + anti-fingerprint coating
Battery390mAh LiPo (Minimum value)
Standby TimeUp to 66 days
Working TimeUp to 20 days
GPS Continuous Usage
Scenario Battery Life
Up to 20 hours
Waterproof5ATM – supports swimming
SensorsBioTrackerTM PPG Bio-Tracking Optical Sensor
3-axis acceleration sensor
Geomagnetic sensor
Ambient light sensor
PositioningGPS + GLONASS
AppZepp App (formerly known as the Amazfit App)
CompatibilityAndroid 5.0 or iOS 10.0 and above
BluetoothBluetooth 5.0/BLE
Features14 workout modes: Run, treadmill, trail run, pool swim and open water, indoor cycle, outdoor cycle, fitness, walk, elliptical, climb, hike, ski and triathlon

Health monitoring:
Heart rate monitor – BioTracker™ PPG Bio-Tracking Optical Sensor

Other features: weather forecast, event reminders, call reminders, app notifications & much more.

Appearance & Details

WatchTouchscreen: Corning Gorilla Glass 3 + anti-fingerprint coating
Body: Polymer materials
Size: 47.7 X 47.7 X 13.5 mm
Weight: 58g (with strap)

Package contents

1 x Amazfit T-Rex Smartwatch
1 x Charging cable
1 x User manual

Additional information


Camo Green, Khaki

Delivery times & cost in the UK

Shipping methodDelivery timeOrders Price
FREE Delivery4-7 business days£25.00 and upFREE
FREE Express Delivery1-2 business days£70.00 and upFREE
Standard Delivery2-4 business days£25.00 and up£3.99
Express Delivery1-2 business days£25.00 and up£6.99
Next Day Delivery1 business days£25.00 and up£9.99
Standard Delivery2-4 business days£0.00 – £24.99£2.99
Express Delivery1-2 business days£0.00 – £24.99£3.99

Rest of Europe delivery times & cost

Shipping methodDelivery timeOrdersPrice
Standard5-14 business days£0.00-£58.99£7.99
Standard5-14 business days£59.00 and upFREE

Customs charges

Please note, we have warehouses in the UK, so there are no customs charges for customers from this country.

Customers can be charged for buying & importing products into their country. Smartwatch for Less does not take responsibility for any customs or import fees that may occur once the parcel reaches its destination country, the recipient must cover these charges. Please note Smartwatch for Less does not collect or handle any tax charges or fees. If you have any queries regarding the tax you may have been charged, please contact your local customs office.

Unfortunately, we have no control over these charges, and cannot tell you how much these would be, as these fees vary widely from country to country.

We recommend contacting your local customs office prior to ordering ANYTHING online, so you are not surprised by any unexpected charges.

If the customer refuses to pay customs charges, the shipping costs will be deducted from the refund.

More about our shipping policy can be found here.