ASUS ZenWatch 2 vs. Fitbit Ionic vs. Asus ZenWatch vs. Fitbit Alta HR vs. Fitbit Flex

 
ZenWatch 2
Ionic
ZenWatch
Alta HR
Flex
 ASUSZenWatch 2Remove Buy NowFitbitIonicRemove Buy NowAsusZenWatchRemove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$150$299$150$150$100
Release20162017201420172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a4+ daysNA7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320348x250320 x 320128 x 36NA
Size1.63 inches or 1.45 inch1.421.63 inches1.4 inchesNA
TouchNA
TypeAMOLEDOLEDAMOLEDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP6750mIP551 ATM

Notifications

Phone
Emailsn/aNA
Textsn/aNA

Software

Operating SystemAndroid WearFitbit OSAndroid WearNA
Apps
Music

All Wearables