Fitbit Flex 2 vs. Michael Kors Grayson vs. Garmin Vivosmart HR Plus vs. Michael Kors Grayson vs. Amazfit T-Rex vs. Garmin VivoActive 4

 
Flex 2
Grayson
Vivosmart HR Plus
Grayson
T-Rex
VivoActive 4
 FitbitFlex 2Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart HR PlusRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$100$350$179$350$140$349
Release201620182017201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hours5 days24 hours20 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a453 x 454160 x 68453x454360 x 360260 x 260
Sizen/a1.39 inches0.5 inches x 0.8 inches1.39 inches1.3 inches1.3ionches
Touchn/a
TypeLEDAMOLEDLCDAMOLEDAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM5 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAAndroid WearBuild-inWear OS
Apps
Music

All Wearables