Garmin Legacy Hero Series First Avenger vs. Amazfit GTS 3

Smartwatch Comparison, Reviews and Tests

In depth comparison and review of Garmin Legacy Hero Series First Avenger and Amazfit GTS 3. 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 Legacy Hero Series First Avenger vs. Amazfit GTS 3 Comparison Chart
GENERAL Garmin Legacy Hero Series First Avenger Amazfit GTS 3
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
Width 45.1 mm -
Height 45.1 mm -
Depth 12.8 mm -
Weight 50.5 g -
Body Details - Case only: 24.4 g
Body Material Stainless steel, fibre-reinforced polymer Aluminium alloy
Protection Water-resistant Water-resistant
Clock Display Yes Yes
FEATURES Garmin Legacy Hero Series First Avenger Amazfit GTS 3
Sensors Accelerometer, thermometre, altimeter, gyro sensor, electromagnetic compass, optical heart sensor, Pulse Ox sensor Accelerometer, ambient light sensor, gyro sensor, geomagnetic sensor, barometric altimeter, temperature, BioTracker PPG 3.0 biometric sensor
Tracking Data Distance, time, calories burned, sleep activity, heart rate, steps taken, floors climbed, blood oxygen saturation, stress level, menstrual cycle, breathing rate, hydration Distance, calories burned, sleep activity, heart rate, steps taken, blood oxygen saturation, stress level
Goal Setting Yes Yes
Features Music remote handling, find phone function, idle alert, HR zones, Move IQ, Garmin Connect compatible, Find my Device, store & play music, rejecting a call, Garmin Elevate, TrueUp, Body Battery, animated workouts Camera remote control, find phone function, automatic exercise recognition, weather information, PAI Health Assessment System
Notifications SMS, incoming calls Calendar
Vibrating Alert - Yes
Feedback Type - Vibration alert, visual interface
Navigation (GPS) GPS/GLONASS/Galileo receiver GPS/GLONASS/Galileo/BeiDou/QZSS receiver
Payment Technology Garmin Pay -
Internet of Things (IoT) Compatible - Yes
IoT Intelligent Assistant - Alexa
CONNECTIVITY Garmin Legacy Hero Series First Avenger Amazfit GTS 3
Wireless Interface Bluetooth, Wi-Fi, NFC, ANT+ Bluetooth 5.1
DISPLAY Garmin Legacy Hero Series First Avenger Amazfit GTS 3
Type Memory-in-Pixel LCD - colour AMOLED - colour
Resolution 260 x 260 pixels 390 x 450 pixels
Screen Size 1.3" 1.75"
Pixel Density - 341 ppi
Screen Protection Corning Gorilla Glass 3 (scratch resistant glass) Tempered glass
INPUT DEVICE Garmin Legacy Hero Series First Avenger Amazfit GTS 3
Type Touch sensitive screen, touch buttons Touch sensitive screen
CASE Garmin Legacy Hero Series First Avenger Amazfit GTS 3
Case Size 45 mm -
Case Shape Round Rectangular
Bezel Brushed stainless steel -
Case Back Polymer -
Case Details Silver / midnight blue -
Crown Type - Classic crown
BAND Garmin Legacy Hero Series First Avenger Amazfit GTS 3
Band Type Band Strap
Band Width 22 mm 20 mm
Fits Wrist with Circumference 135-200 mm 155-218 mm
Changeable - Yes
Clasp Type Buckle Buckle
Band Material Tactical leather Silicone
Band Colour Brown Graphite black | Ivory white | Pink earth
BATTERY Garmin Legacy Hero Series First Avenger Amazfit GTS 3
Technology Lithium polymer -
Capacity - 250 mAh
Battery Life 8 day(s) -
Battery Life Details Smartwatch mode - up to 8 days
GPS mode - up to 18 hour(s)
Smartwatch with music mode - up to 7.5 hour(s)
GPS with Music mode - up to 6 hour(s)
Battery safe mode - up to 20 days
Heavy usage - up to 6 days
Typical usage - up to 12 days
GPS mode - up to 20 hour(s)
Rechargeable Battery Yes Yes
Recharge Time - 2 hour(s)
MISCELLANEOUS Garmin Legacy Hero Series First Avenger Amazfit GTS 3
Included Accessories Charging/data cable Magnetic charging stand
Preloaded Software Garmin Pay, Garmion Connect IQ Zepp App
Max Depth of Water Resistance 50 m 50 m
Max Operating Temperature 60 °C -
Min Operating Temperature -20 °C -
Warranty - 2-year warranty
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