Polar M400 vs. Garmin Vivosmart vs. Asus ZenWatch vs. Misfit Speedo Shine vs. Amazfit T-Rex

 
M400
Vivosmart
ZenWatch
Speedo Shine
T-Rex
 PolarM400Remove Buy NowGarminVivosmartRemove Buy NowAsusZenWatchRemove Buy NowMisfitSpeedo ShineRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$170$150$80$140
Release20142014201420152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/an/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 hours to 30 days7 daysNA6 months20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolutionn/a128 x 16320 x 320NA360 x 360
Sizen/a1.41 inches1.63 inchesNA1.3 inches
TouchNA
Typen/aOLEDAMOLEDNAAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATMIP555 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/an/aAndroid WearNABuild-in
Apps
Music

All Wearables