Polar Grit X vs. Amazfit T-Rex 2

Smartwatch Comparison, Reviews and Tests

In depth comparison and review of Polar Grit X and Amazfit T-Rex 2. 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

Polar Grit X vs. Amazfit T-Rex 2 Comparison Chart
GENERAL Polar Grit X Amazfit T-Rex 2
Product Type Sport watch Smart watch
Operating System - Zepp OS
Supported Host Device OS iOS, Android iOS 12 or later, Android 7.0 (Nougat) or later
Activity/Sport Multisport Multisport
Wearing Style Watch style Watch style
Width - 47.1 mm
Height - 47.1 mm
Depth - 13.65 mm
Weight - 66.5 g
Body Details With band: 64 g
Case only: 44 g
-
Body Material Stainless steel Polymer
Protection Waterproof Shockproof, water-resistant, salt fog protection, freezeproof, heat-resistant
Clock Display Yes Yes
FEATURES Polar Grit X Amazfit T-Rex 2
Sensors Digital compass, barometer, altimeter, heart rate Accelerometer, ambient light sensor, digital compass, gyro sensor, geomagnetic sensor, barometric altimeter, BioTracker PPG 3.0 biometric sensor
Tracking Data Distance, speed, calories burned, activity, heart rate, steps taken, pace, sleep stages, cadence, running power, swimming metrics, running index Distance, calories burned, sleep activity, heart rate, blood oxygen saturation, sleep stages, stress level, menstrual cycle
Modes - 150+ sports modes
Goal Setting Yes Yes
Features Fitness test, VO2 max, inactivity alert, alarm, Serene (breathing exercise), weather information, Nightly Recharge recovery measurement, FitSpark training guide, FuelWise smart fueling assistant, Hill Splitter, Route guidance, Route planning with Komoot, Energy sources Camera remote control, find phone function, flashlight, alarm, realtime location tracking, weather information, event reminders, PAI Health Assessment System, pomodoro timer, stopwatch timer, PeakBeats workout status algorithm, OxygenBeats algorithm, ExerSense algorithm, SomnusCare, Dual-band navigation
Notifications SMS, Email, incoming calls Missed calls, calendar, incoming calls, applications
Vibrating Alert Yes Yes
Feedback Type Vibration alert, visual interface Vibration alert, visual interface
Navigation (GPS) GPS/GLONASS/Galileo/QZSS receiver GPS receiver
CONNECTIVITY Polar Grit X Amazfit T-Rex 2
Wireless Interface Bluetooth Bluetooth 5.0 BLE
DISPLAY Polar Grit X Amazfit T-Rex 2
Type Colour AMOLED - colour
Resolution 240 x 240 pixels 454 x 454 pixels
Screen Size 1.2" 1.39"
Pixel Density - 326 ppi
Screen Protection Corning Gorilla Glass (scratch resistant glass) -
Always On Display (AOD) Yes Yes
INPUT DEVICE Polar Grit X Amazfit T-Rex 2
Type Touch sensitive screen Touch sensitive screen, touch buttons
CASE Polar Grit X Amazfit T-Rex 2
Crystal Type Laminated Corning Gorilla Glass -
Case Shape Round Round
Bezel Stainless steel -
Case Details White/silver | Black DLC | Silver Ember black | Wild green | Desert khaki | Astro black and gold
BAND Polar Grit X Amazfit T-Rex 2
Band Type Band Strap
Band Size S -
Band Width 22 mm -
Fits Wrist with Circumference 130-190 mm 140-205 mm
Changeable Yes -
Clasp Type Buckle Buckle
Band Material Silicone Silicone
Band Colour White | Black | Green Ember black | Wild green | Desert khaki
BATTERY Polar Grit X Amazfit T-Rex 2
Technology Lithium polymer -
Capacity 346 mAh 500 mAh
Battery Life 7 day(s) 24 day(s)
Battery Life Details Watch mode - up to 7 days
Training mode - up to 40 hour(s)
Typical usage - up to 24 days
Battery safe mode - up to 45 days
Heavy usage - up to 10 days
Accurate mode (with GPS) - up to 26 hour(s)
Balanced mode (with GPS) - up to 50 hour(s)
Power saving mode (with GPS) - up to 58 hour(s)
Ultra-low temperature (with GPS) - up to 10 hour(s)
Ultra-low temperature (without GPS) - up to 9 days
Rechargeable Battery Yes Yes
Recharge Time - 2 hour(s)
MISCELLANEOUS Polar Grit X Amazfit T-Rex 2
Included Accessories USB charging cable Magnetic charging dock
Preloaded Software - Zepp App
Compliant Standards MIL-STD 810G MIL-STD 810G
Max Depth of Water Resistance 100 m 100 m
Max Operating Temperature 50 °C -
Min Operating Temperature -20 °C -
Warranty 2-year warranty 1-year warranty
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