ASUS ZenWatch 2 vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
ZenWatch 2
Forerunner 235
Flex
Forerunner 45
T-Rex
 ASUSZenWatch 2Remove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$299.99$100$199$140
Release20162017201320192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a9 days5 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320215 x 180NA208 x 208360 x 360
Size1.63 inches or 1.45 inch1.23 inchesNA1.04 inches1.3 inches
TouchNA
TypeAMOLEDMIPLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearNABuilt-inBuild-in
Apps
Music

All Wearables