Garmin Forerunner 225 vs. Asus ZenWatch vs. Fitbit Charge 3 vs. Fitbit Flex vs. Amazfit GTS

 
Forerunner 225
ZenWatch
Charge 3
Flex
GTS
 GarminForerunner 225Remove Buy NowAsusZenWatchRemove Buy NowFitbitCharge 3Remove Buy NowFitbitFlexRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$300$150$150$100$150
Release20152014201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeksNA7 days5 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Macn/aNA
Windowsn/aNANot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution180 x 180320 x 32066 x 18NA348 x 442
Size1 inch1.63 inches.721 inchesNA1.65 inches
TouchNA
Typen/aAMOLEDOLEDLEDAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP555 ATM1 ATM5 ATM

Notifications

Phonen/a
Emailsn/aNA
Textsn/aNA

Software

Operating Systemn/aAndroid WearNANAWear OS
Appsn/a
Musicn/a

All Wearables