ASUS ZenWatch 2 vs. Withings Steel HR vs. Fitbit Alta HR vs. Garmin Vivofit 4 vs. Amazfit T-Rex

 
ZenWatch 2
Steel HR
Alta HR
Vivofit 4
T-Rex
 ASUSZenWatch 2Remove Buy NowWithingsSteel HRRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivofit 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$180$150$79.95$140
Release20162016201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a25 days7 days1 year20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320n/a128 x 3688 x 88360 x 360
Size1.63 inches or 1.45 inchn/a1.4 inchesNA1.3 inches
Touch
TypeAMOLEDn/aOLEDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid Wearn/aBuild-in
Apps
Music

All Wearables