ASUS ZenWatch 2 vs. Fitbit Alta HR vs. Michael Kors Access Sofie HR vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
ZenWatch 2
Alta HR
Access Sofie HR
Vivosmart 4
T-Rex
 ASUSZenWatch 2Remove Buy NowFitbitAlta HRRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$150$395$130$140
Release20162017201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a7 days2 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320128 x 36390 x 39048 x 128360 x 360
Size1.63 inches or 1.45 inch1.4 inches1.19 inches0.74 inches1.3 inches
Touch
TypeAMOLEDOLEDOMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP670.3 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearWear OSBuild-in
Apps
Music

All Wearables