Polar Unite vs. Amazfit GTR 4

Smartwatch Comparison, Reviews and Tests

Detailed comparison and review of Polar Unite and Amazfit GTR 4. With our comprehensive overview, you can simply compare size, design, functions, battery capacities, but also other key features of both smartwatches and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the watch that best fits your needs and expectations.

Smartwatch Specifications Comparison

Polar Unite vs. Amazfit GTR 4 Comparison Chart
GENERAL Polar Unite Amazfit GTR 4
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
Wearing Style Watch style Watch style
Audio Input - Microphone
Audio Output - Speaker
Width 43.4 mm -
Height 43.4 mm -
Depth 10.4 mm -
Weight 32 g -
Body Details - With band: 34 g
Body Material Fibreglass reinforced polymer Aluminium alloy frame
Protection Water-resistant Water-resistant
Clock Display Yes Yes
FEATURES Polar Unite Amazfit GTR 4
Sensors Accelerometer, ambient light sensor, optical heart sensor Accelerometer, ambient light sensor, geomagnetic sensor, barometric altimeter, gyroscope, BioTracker PPG 4.0 biometric sensor
Tracking Data Distance, calories burned, activity, sleep activity, heart rate, steps taken 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 Fitness test, Bluetooth Smart technology, inactivity alert, GPS via mobile, guided breathing session, Nightly Recharge recovery measurement, FitSpark training guide 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 Calendar, SMS, Email 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
Internet of Things (IoT) Compatible - Yes
IoT Intelligent Assistant - Alexa built-in
IoT Voice Controlled - Direct
CONNECTIVITY Polar Unite Amazfit GTR 4
Wireless Interface Bluetooth Wi-Fi, Bluetooth 5.0 BLE
Connectors USB -
DISPLAY Polar Unite Amazfit GTR 4
Type IPS - colour AMOLED - colour
Resolution 240 x 204 pixels 466 x 466 pixels
Screen Size - 1.43"
Pixel Density - 326 ppi
Screen Protection - Fingerprint-resistant coating, tempered glass, anti-glare bezel
Always On Display (AOD) - Yes
INPUT DEVICE Polar Unite Amazfit GTR 4
Type Touch sensitive screen Touch sensitive screen, push buttons
CASE Polar Unite Amazfit GTR 4
Case Shape Round Circular
Case Back - Polycarbonate
Case Details - Aluminium alloy
BAND Polar Unite Amazfit GTR 4
Band Type Band Strap
Band Size S/L -
Band Width 20 mm 22 mm
Fits Wrist with Circumference 130-210 mm 150-215 mm
Changeable Yes Yes
Clasp Type Snap & slip Pin buckle
Band Material Silicone Fluoroelastomer
Band Colour Black | Blue | Pink | White Superspeed black | Vintage brown leather
STORAGE Polar Unite Amazfit GTR 4
User Memory - 2.3 GB
BATTERY Polar Unite Amazfit GTR 4
Technology Lithium polymer -
Capacity 174 mAh 475 mAh
Battery Life Details Watch mode + HR - up to 4 days
Training mode + HR - up to 50 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 - 2 hour(s)
MISCELLANEOUS Polar Unite Amazfit GTR 4
Included Accessories Charging/data cable Magnetic charging cable
Preloaded Software Polar Fitness Test, Polar Flow To Do List, Games, Stopwatch, Calendar, World clock, Alarm Clock, Reminders, Timer, Compass, Countdown timer
Max Depth of Water Resistance 30 m 50 m
Max Operating Temperature 50 °C 45 °C
Min Operating Temperature -10 °C 0 °C
Warranty 2-year warranty 1-year warranty
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