Amazfit T-Rex Pro vs. Amazfit GTR 4

Smartwatch Comparison, Reviews and Tests

In depth comparison and review of Amazfit T-Rex Pro and Amazfit GTR 4. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.

Smartwatch Specifications Comparison

Amazfit T-Rex Pro vs. Amazfit GTR 4 Comparison Chart
GENERAL Amazfit T-Rex Pro Amazfit GTR 4
Product Type Smart watch Smart watch
Operating System - Zepp OS
Supported Host Device OS iOS 10 or later, Android 5.0 (Lollipop) or later iOS 12 or later, Android 7.0 (Nougat) or later
Activity/Sport Multisport Multisport
Wearing Style Watch style Watch style
Audio Input - Microphone
Audio Output - Speaker
Body Details With band: 59.4 g With band: 34 g
Body Material Polycarbonate Aluminium alloy frame
Protection Water-resistant, temperature protection, salt fog protection, freezeproof Water-resistant
Colours Desert grey -
Clock Display Yes Yes
FEATURES Amazfit T-Rex Pro Amazfit GTR 4
Sensors Ambient light sensor, 3-axis gyro sensor, geomagnetic sensor, barometric altimeter, 3-axis accelerometer, BioTracker 2 PPG biological tracking optical sensor Accelerometer, ambient light sensor, geomagnetic sensor, barometric altimeter, gyroscope, BioTracker PPG 4.0 biometric sensor
Tracking Data Distance, calories burned, sleep activity, heart rate, blood oxygen saturation Time, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation, sleep stages, stress level, menstrual cycle, personal activity intelligence (PAI), recovery time, training load, sleep quality score, nap, sleep breathing quality
Modes - 154 sports modes
Goal Setting Yes Yes
Features Music remote handling, event reminders Strength training guidance, camera remote control, find phone function, answering a call, VO2 max, making a call, Find my Device, breathing training function, store & play music, sunrise/sunset times, auto pause, auto lap, realtime location tracking, music playback control, weather information, PeakBeats workout status algorithm, ExerSense algorithm, Dual-band navigation, linear motor, Virtual Pacer, track run mode, smart trajectory correction, route file import
Notifications SMS, incoming calls, applications SMS, incoming calls, applications, high and low heart rate, low blood-oxygen, high stress level
Vibrating Alert Yes Yes
Feedback Type - Audio alert, vibration alert, visual interface
Navigation (GPS) GPS/GLONASS/Galileo/BeiDou receiver -
Internet of Things (IoT) Compatible - Yes
IoT Intelligent Assistant - Alexa built-in
IoT Voice Controlled - Direct
CONNECTIVITY Amazfit T-Rex Pro Amazfit GTR 4
Wireless Interface Bluetooth 5.0 Wi-Fi, Bluetooth 5.0 BLE
DISPLAY Amazfit T-Rex Pro Amazfit GTR 4
Type AMOLED - colour AMOLED - colour
Resolution 360 x 360 pixels 466 x 466 pixels
Screen Size 1.3" 1.43"
Pixel Density - 326 ppi
Screen Protection Tempered glass Fingerprint-resistant coating, tempered glass, anti-glare bezel
Always On Display (AOD) Yes Yes
INPUT DEVICE Amazfit T-Rex Pro Amazfit GTR 4
Type Touch sensitive screen Touch sensitive screen, push buttons
CASE Amazfit T-Rex Pro Amazfit GTR 4
Case Shape Round Circular
Case Back - Polycarbonate
Case Details Meteorite black | Steel blue Aluminium alloy
BAND Amazfit T-Rex Pro Amazfit GTR 4
Band Type Band Strap
Band Width 22 mm 22 mm
Fits Wrist with Circumference - 150-215 mm
Changeable - Yes
Clasp Type Buckle Pin buckle
Band Material Silicone rubber Fluoroelastomer
Band Colour Meteorite black | Blue steel Superspeed black | Vintage brown leather
STORAGE Amazfit T-Rex Pro Amazfit GTR 4
User Memory - 2.3 GB
BATTERY Amazfit T-Rex Pro Amazfit GTR 4
Technology Lithium polymer -
Capacity 390 mAh 475 mAh
Battery Life 18 day(s) -
Battery Life Details Typical usage - up to 18 days
Heavy usage - up to 9 days
GPS mode - up to 40 hour(s)
Typical usage - up to 14 days
Battery Saver Watch Mode - up to 24 days
Clock - up to 50 days
Heavy usage - up to 7 days
Accurate mode (with GPS) - up to 25 hours
GPS mode - up to 44 hours
Power saving mode (with GPS) - up to 52 hours
Rechargeable Battery Yes Yes
Recharge Time 1.5 hour(s) 2 hour(s)
MISCELLANEOUS Amazfit T-Rex Pro Amazfit GTR 4
Included Accessories Magnetic charging dock Magnetic charging cable
Preloaded Software - To Do List, Games, Stopwatch, Calendar, World clock, Alarm Clock, Reminders, Timer, Compass, Countdown timer
Max Depth of Water Resistance 100 m 50 m
Max Operating Temperature 70 °C 45 °C
Min Operating Temperature -40 °C 0 °C
Warranty 1-year warranty 1-year warranty
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