Fitbit Ionic vs. Garmin Fenix 5s vs. Asus ZenWatch vs. Garmin Vivosmart HR Plus vs. Amazfit T-Rex

 
Ionic
Fenix 5s
ZenWatch
Vivosmart HR Plus
T-Rex
 FitbitIonicRemove Buy NowGarminFenix 5sRemove Buy NowAsusZenWatchRemove Buy NowGarminVivosmart HR PlusRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$299$599.99$150$179$140
Release20172017201420172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ daysUp to 9 daysNA5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250218x 218320 x 320160 x 68360 x 360
Size1.421.1 inches1.63 inches0.5 inches x 0.8 inches1.3 inches
Touch
TypeOLEDnaAMOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m10ATMIP555 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemFitbit OSAndroid WearNABuild-in
Apps
Music

All Wearables