Fitbit Flex 2 vs. Amazfit Cor vs. Asus ZenWatch vs. Garmin Forerunner 45 vs. Amazfit GTR

 
Flex 2
Cor
ZenWatch
Forerunner 45
GTR
 FitbitFlex 2Remove Buy NowAmazfitCorRemove Buy NowAsusZenWatchRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$100$79.99$150$199$199
Release20162018201420192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 daysNA7 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a80 x 160320 x 320208 x 208454 x 454
Sizen/a1.23 inches1.63 inches1.04 inches1.39 inches
Touchn/a
TypeLEDIPS LCDAMOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearBuilt-inBuild-in
Apps
Music

All Wearables