ASUS ZenWatch 2 vs. Fitbit Ionic vs. Casio G-Shock GBA800 vs. Fitbit Flex vs. Amazfit GTR

 
ZenWatch 2
Ionic
G-Shock GBA800
Flex
GTR
 ASUSZenWatch 2Remove Buy NowFitbitIonicRemove Buy NowCasioG-Shock GBA800Remove Buy NowFitbitFlexRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$150$299$120$100$199
Release20162017201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a4+ days2 years5 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320348x250NA454 x 454
Size1.63 inches or 1.45 inch1.42NA1.39 inches
TouchNA
TypeAMOLEDOLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP6750m20 ATM1 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearFitbit OSNABuild-in
Apps
Music

All Wearables