Fitbit Ionic vs. Asus VivoWatch vs. Garmin Forerunner 235 vs. Amazfit T-Rex vs. Garmin VivoActive 4

 
Ionic
VivoWatch
Forerunner 235
T-Rex
VivoActive 4
 FitbitIonicRemove Buy NowAsusVivoWatchRemove Buy NowGarminForerunner 235Remove Buy NowAmazfitT-RexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$299$160$299.99$140$349
Release20172018201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days24 hours to 10 days9 days20 days8 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250128 x 128215 x 180360 x 360260 x 260
Size1.42NA1.23 inches1.3 inches1.3ionches
Touch
TypeOLEDNAMIPAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance50mIP675 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSKoodOSBuild-inWear OS
Apps
Music

All Wearables