ASUS ZenWatch 3 vs. Fitbit Ionic vs. Garmin Fenix 5s vs. Amazfit T-Rex vs. Garmin VivoActive 4

 
ZenWatch 3
Ionic
Fenix 5s
T-Rex
VivoActive 4
 ASUSZenWatch 3Remove Buy NowFitbitIonicRemove Buy NowGarminFenix 5sRemove Buy NowAmazfitT-RexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$229$299$599.99$140$349
Release20172017201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration48 hours4+ daysUp to 9 days20 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution400 x 400348x250218x 218360 x 360260 x 260
Size1.39 inches1.421.1 inches1.3 inches1.3ionches
Touch
TypeAMOLEDOLEDnaAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m10ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear 2Fitbit OSBuild-inWear OS
Apps
Music

All Wearables