Asus ZenWatch vs. Garmin Forerunner 235 vs. Fitbit Alta HR vs. Fitbit Flex vs. Amazfit GTR

 
ZenWatch
Forerunner 235
Alta HR
Flex
GTR
 AsusZenWatchRemove Buy NowGarminForerunner 235Remove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$150$299.99$150$100$199
Release20142017201720132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

DurationNA9 days7 days5 days24 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320215 x 180128 x 36NA454 x 454
Size1.63 inches1.23 inches1.4 inchesNA1.39 inches
TouchNA
TypeAMOLEDMIPOLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP555 ATM1 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemAndroid WearNABuild-in
Apps
Music

All Wearables