Polar M430 vs. Michael Kors Grayson vs. Fitbit Versa 2 vs. Michael Kors Grayson vs. Amazfit T-Rex vs. Garmin VivoActive 4

 
M430
Grayson
Versa 2
Grayson
T-Rex
VivoActive 4
 PolarM430Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitVersa 2Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$255$350$199$350$140$349
Release201720182019201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 hours24 hours5 days24 hours20 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128x128453 x 454300 x 300453x454360 x 360260 x 260
Size1.4 inch1.39 inches1.34 inches1.39 inches1.3 inches1.3ionches
Touch
TypeLCDAMOLEDAMOLEDAMOLEDAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR301 ATM5 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearBuild-inAndroid WearBuild-inWear OS
Apps
Music

All Wearables