Fitbit Ionic vs. Asus VivoWatch vs. Asus ZenWatch vs. Fitbit Flex vs. Garmin Forerunner 45

 
Ionic
VivoWatch
ZenWatch
Flex
Forerunner 45
 FitbitIonicRemove Buy NowAsusVivoWatchRemove Buy NowAsusZenWatchRemove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$299$160$150$100$199
Release20172018201420132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days24 hours to 10 daysNA5 days7 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250128 x 128320 x 320NA208 x 208
Size1.42NA1.63 inchesNA1.04 inches
TouchNA
TypeOLEDNAAMOLEDLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance50mIP67IP551 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemFitbit OSKoodOSAndroid WearNABuilt-in
Apps
Music

All Wearables