ASUS ZenWatch 2 vs. Fitbit Ionic vs. Asus VivoWatch vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
ZenWatch 2
Ionic
VivoWatch
Forerunner 45
T-Rex
 ASUSZenWatch 2Remove Buy NowFitbitIonicRemove Buy NowAsusVivoWatchRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$299$160$199$140
Release20162017201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a4+ days24 hours to 10 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320348x250128 x 128208 x 208360 x 360
Size1.63 inches or 1.45 inch1.42NA1.04 inches1.3 inches
Touch
TypeAMOLEDOLEDNALCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water ResistanceIP6750mIP675 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearFitbit OSKoodOSBuilt-inBuild-in
Apps
Music

All Wearables