Amazfit T-Rex 3 Pro specifications and in-depth review

Amazfit T-Rex 3 Pro

Manufacturer: Amazfit

The Amazfit T-Rex 3 Pro is a rugged sports watch designed to withstand tough conditions while offering advanced tracking features. It comes equipped with a 1.5″ OLED display and a battery that can last up to 25 days on a single charge, making it a reliable choice for athletes and adventurers alike. Its water resistance of 100 meters ensures it can be used for various outdoor activities, including diving.

This watch features a wide range of sensors such as a heart rate monitor, GPS, barometer, and even a body temperature sensor. It supports multi-sport modes, tracks elevation and sleep, and provides detailed activity reports. The T-Rex 3 Pro is compatible with both iOS and Android devices and offers features like vibrating alerts, automatic activity detection, and a rechargeable battery with a long battery life of 116 hours with GPS on.

Pros
  • The device offers a variety of useful activity-tracking features such as distance tracking, sleep tracking, and step counting.
  • It supports a range of fitness sensors like a heart rate monitor, GPS, and VO2 max measurement, enhancing overall health tracking.
  • The app is free to use and ad-free, providing a seamless experience without interruptions.
  • It offers compatibility with both Windows and Mac OS X, making it easy to sync with different devices.
  • The device includes a passcode for added security and supports external heart rate monitors and smart scales.
Cons
  • The watch does not support external memory slots, limiting storage expansion options.
  • It lacks a 3.5 mm audio jack, which may be inconvenient for users who prefer wired headphones.
  • There is no support for solar charging, which may reduce long-term battery efficiency during outdoor activities.
Who is this for?

This product is ideal for fitness enthusiasts and active individuals who require comprehensive activity tracking features such as distance, steps, and heart rate monitoring. It is also well-suited for those looking for a secure, multi-platform experience, with support for both Windows and Mac OS X, as well as compatibility with external heart rate monitors and smart scales. Additionally, its long battery life of up to 25 days makes it a great option for extended outdoor activities or travel without the need for frequent recharging.

Who is this NOT for?

This product may not be suitable for users who need extensive storage options, as it lacks an external memory slot for expanded storage. It also does not support a 3.5mm audio jack, which could be inconvenient for those who prefer wired headphones. Additionally, the lack of solar charging makes it less optimal for outdoor enthusiasts who are looking for a truly self-sustaining device during extended outdoor activities.

Design:

screen size 1.5"
Display type OLED/AMOLED
water resistance Sweat resistant
has branded damage-resistant glass
resolution 480 x 480 px
Watch band is replaceable
has a touch screen
weight 59 g
waterproof depth rating 100 m
Has sapphire glass display
thickness 14 mm
Always-On Display
height 48 mm
pixel density 322 ppi
Has a display
width 48 mm
width of band 22 mm
volume 32.256 cm³

The Amazfit T-Rex 3 Pro boasts a 1.5″ OLED display with a resolution of 480 x 480 px and a pixel density of 322 ppi, ensuring sharp and vibrant visuals. The screen features an Always-On Display for continuous visibility, and the watch is equipped with sapphire glass for added durability. With a waterproof depth rating of 100 meters, it is well-suited for both sweat and water exposure. The watch also includes a replaceable band and has a compact yet solid design with a thickness of 14 mm and a weight of just 59 g.

Sensors:

has GPS
Has a heart rate monitor
Monitors blood oxygenation levels
Has a barometer
has an accelerometer
has a compass
Has a temperature sensor
Has a cadence sensor
has a gyroscope
Has a wind speed sensor
Monitors perspiration

The Amazfit T-Rex 3 Pro is equipped with a comprehensive suite of sensors to track various physical metrics. It includes a heart rate monitor, pulse oximeter to monitor blood oxygen levels, and a body temperature sensor. Additionally, the watch features GPS, a barometer, an accelerometer, a compass, a cadence sensor, and a gyroscope, making it suitable for a wide range of activities and environmental conditions. However, it does not include a wind speed sensor or perspiration monitor.

Activity tracking:

Has a route tracker
Tracks distance
Measures pace
Has trackback mode
Tracks your sleep
Has multi-sport mode
Detects activities automatically
Tracks elevation
Tracks steps taken
Provides sleep reports
Has exercise tagging
Has a stroke counter for swimming
Tracks calorie intake
Designed for diving
Designed for golf

The Amazfit T-Rex 3 Pro offers a wide range of activity tracking features, including route tracking, distance tracking, and pace measurement. It also supports multi-sport mode, allowing users to track a variety of exercises, while automatically detecting activities. Other key features include sleep tracking with sleep reports, steps tracking, and elevation tracking. Additionally, it includes a stroke counter for swimming, food tracking for calorie intake, and is designed for diving. However, it does not include a trackback mode or golf-specific features.

Connectivity:

Is compatible with iOS
Is compatible with Android
supports Wi-Fi
Bluetooth version 5.2
has a cellular module
supports ANT+
Wi-Fi version Wi-Fi 4 (802.11n)
has NFC

The Amazfit T-Rex 3 Pro offers versatile connectivity options, supporting both iOS and Android devices for seamless synchronization. It includes Wi-Fi 4 (802.11n) for wireless internet access and Bluetooth 5.2 for stable connections with compatible devices. However, it does not have NFC, ANT+ support, or a cellular module.

Battery:

battery power 700 mAh
battery life 25 days
battery life with GPS on 116 hours
has wireless charging
Has a solar power battery
battery life in power save mode 116 hours
has a rechargeable battery
has a removable battery

The Amazfit T-Rex 3 Pro is equipped with a 700 mAh rechargeable battery, providing up to 25 days of battery life under normal use. With GPS activated, the battery lasts up to 116 hours, and the same duration is achievable in power save mode. However, it does not support wireless charging or a solar-powered battery, and the battery is not removable.

Features:

release date September 2025
has HRV tracking
measures VO2 max
measures resting heart rate
has fast/slow heart rate notifications
shows readiness level
Can upload maps
Has vibrating alerts
Has a stopwatch
Locates your phone
Has silent alarm
has irregular heart rate warnings
has fall detection
Has notifications
Acquires GPS faster
Has call control
Provides the sunrise/sunset time
Can be used to answer calls
supports Galileo
Has smart alarm
Informs about the risk of thunderstorms
warranty period 1 years
number of microphones 1
has voice commands
Has a built-in camera remote control function

The Amazfit T-Rex 3 Pro offers a variety of useful features designed to support health and convenience. It includes HRV tracking, VO2 max measurement, and resting heart rate monitoring, helping users track their fitness and recovery. Additionally, it provides vibrating alerts, a stopwatch, and phone locator capabilities. Other notable features include a silent alarm, sunrise/sunset times, and notifications. The watch also supports Galileo for improved GPS accuracy and can alert users to the risk of thunderstorms, although it does not have features like fall detection or voice commands.

App & Software:

Provides activity reports
Has inactivity alerts
Counts how many calories you've burned
Has goal setting
Has achievements
Free app
Has exercise diary
Ad-free
Has weight tracking
Tracks BMI
Tracks water intake
Has live tracking
Has coaching
Has temperature tracking
Has period notifications
Supports routes
Syncs with existing calendars
Has music playback
Displays fertile window notifications
Has food diary
Includes maps
Predicts start date
Predicts ovulation
Has video tutorials
Supports widgets
Can be personalised
Has barcode scanner on app

The Amazfit T-Rex 3 Pro comes with a comprehensive suite of features through its app, offering activity reports, goal setting, and tracking for calories burned, weight, BMI, and water intake. It also includes an exercise diary, live tracking, and coaching for enhanced fitness monitoring. The app is free, ad-free, and supports personalization, syncing with existing calendars, and even provides workout music. Additionally, it tracks temperature, period notifications, and includes video tutorials, maps, and fertility predictions, while lacking a barcode scanner.

Miscellaneous:

has a battery level indicator
Is compatible with Windows
Has auto pause
Compatible with external heart rate monitors
Compatible with smart scales
Has passcode
Is compatible with Mac OS X
has an external memory slot
has a socket for a 3.5 mm audio jack

The Amazfit T-Rex 3 Pro includes useful features like a battery level indicator and compatibility with both Windows and Mac OS X. It supports external heart rate monitors and smart scales, and allows for added security with a passcode. The watch also offers auto pause functionality, but lacks an external memory slot or a 3.5 mm audio jack.

Final Verdict

The product stands out as an excellent choice for fitness-focused individuals, offering a comprehensive range of activity tracking features, including heart rate monitoring, distance tracking, and sleep reports. Its long-lasting battery life of up to 25 days adds further appeal for users seeking reliable performance during extended activities. However, its lack of a 3.5mm audio jack and external memory slot may limit its appeal for those needing greater versatility. Overall, this product excels in fitness tracking and multi-platform compatibility, making it a strong choice for active users seeking robust performance.