Garmin Forerunner 745 vs. Amazfit GTS 4

Smartwatch Comparison, Reviews and Tests

In depth comparison and review of Garmin Forerunner 745 and Amazfit GTS 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

Garmin Forerunner 745 vs. Amazfit GTS 4 Comparison Chart
GENERAL Garmin Forerunner 745 Amazfit GTS 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 43.8 mm 36.5 mm
Height 43.8 mm 42.7 mm
Depth 13.3 mm 9.9 mm
Weight 47 g 27 g
Body Material Fibre-reinforced polymer Stainless steel, aluminium alloy frame
Protection Water-resistant Water-resistant
Clock Display Yes Yes
FEATURES Garmin Forerunner 745 Amazfit GTS 4
Sensors Accelerometer, digital compass, thermometre, gyro sensor, heart rate, barometric altimeter, Pulse Ox sensor Accelerometer, ambient light sensor, geomagnetic sensor, barometric altimeter, gyroscope, BioTracker PPG 4.0 biometric sensor
Tracking Data Distance, time, calories burned, sleep activity, heart rate, steps taken, floors climbed, blood oxygen saturation, stress level, menstrual cycle, temperature, hydration, recovery time, training load 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 Find phone function, VO2 max, HR zones, VIRB control, Move IQ, Garmin Connect compatible, Find my Device, store & play music, rejecting a call, Garmin Elevate, LiveTrack, TrueUp, Body Battery, auto lap, Physio TrueUp, music playback control, weather information 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, instant message reply, 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, social apps, incoming calls SMS, incoming calls, applications, high and low heart rate, low blood-oxygen, high stress level
Vibrating Alert Yes Yes
Feedback Type Vibration alert, visual interface Audio alert, vibration alert, visual interface
Navigation (GPS) GPS/GLONASS/Galileo receiver -
Payment Technology Garmin Pay -
Internet of Things (IoT) Compatible - Yes
IoT Intelligent Assistant - Alexa built-in
IoT Voice Controlled - Direct
CONNECTIVITY Garmin Forerunner 745 Amazfit GTS 4
Wireless Interface Bluetooth, Wi-Fi, NFC, ANT+ Wi-Fi, Bluetooth 5.0
DISPLAY Garmin Forerunner 745 Amazfit GTS 4
Type Memory-in-Pixel LCD - colour - transflective AMOLED - colour
Resolution 240 x 240 pixels 390 x 450 pixels
Screen Size 1.2" 1.75"
Pixel Density - 341 ppi
Screen Protection Corning Gorilla Glass DX (scratch resistant glass) Tempered glass
Always On Display (AOD) - Yes
INPUT DEVICE Garmin Forerunner 745 Amazfit GTS 4
Type Touch sensitive screen Touch sensitive screen, push button
CASE Garmin Forerunner 745 Amazfit GTS 4
Case Shape Round Rectangular
Bezel Fibre-reinforced polymer -
Case Details Black | Neo tropic Aluminium alloy
BAND Garmin Forerunner 745 Amazfit GTS 4
Band Type Band Strap
Band Width 22 mm 20 mm
Fits Wrist with Circumference 126-216 mm 140-200 mm
Changeable Yes Yes
Clasp Type Buckle Pin buckle
Band Material Silicone Fluoroelastomer
Band Colour Black Infinite black | Misty white | Rosebud pink
STORAGE Garmin Forerunner 745 Amazfit GTS 4
User Memory - 2.3 GB
BATTERY Garmin Forerunner 745 Amazfit GTS 4
Technology Lithium Ion -
Capacity - 300 mAh
Battery Life 7 day(s) -
Battery Life Details Smartwatch mode - up to 7 days
GPS mode - up to 16 hour(s)
GPS with Music mode - up to 6 hour(s)
UltraTrac mode - up to 21 hour(s)
Typical usage - up to 8 days
Battery Saver Watch Mode - up to 16 days
Clock - up to 30 days
Heavy usage - up to 4 days
Accurate mode (with GPS) - up to 16 hours
GPS mode - up to 28 hours
Power saving mode (with GPS) - up to 33 hours
Rechargeable Battery - Yes
Recharge Time - 2 hour(s)
MISCELLANEOUS Garmin Forerunner 745 Amazfit GTS 4
Included Accessories USB cable Magnetic charging cable
Preloaded Software Garmin Pay, Garmion Connect IQ To Do List, Games, Stopwatch, Calendar, World clock, Alarm Clock, Reminders, Timer, Compass, Countdown timer
Max Depth of Water Resistance 50 m 50 m
Max Operating Temperature 60 °C 45 °C
Min Operating Temperature -20 °C 0 °C
Warranty 1-year warranty 1-year warranty
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