Garmin Forerunner 225 vs. Garmin Vivosmart vs. Garmin 645 Music vs. Amazfit GTR vs. Amazfit GTS

 
Forerunner 225
Vivosmart
645 Music
GTR
GTS
 GarminForerunner 225Remove Buy NowGarminVivosmartRemove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTRRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$300$170$450$199$150
Release20152014201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks7 days7 days24 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/an/a
Windowsn/an/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180128 x 16240 x 240454 x 454348 x 442
Size1 inch1.41 inches1.2 inches1.39 inches1.65 inches
Touch
Typen/aOLEDMIPAMOLEDAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aBuild-inWear OS
Appsn/a
Musicn/a

All Wearables