Michael Kors Grayson vs. Fitbit Flex vs. Garmin Forerunner 45 vs. Michael Kors Grayson vs. Garmin VivoActive 4 vs. Apple Series 6

 
Grayson
Flex
Forerunner 45
Grayson
VivoActive 4
Series 6
 Michael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivoActive 4Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$350$100$199$350$349$399
Release201820132019201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration24 hours5 days7 days24 hours8 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution453 x 454NA208 x 208453x454260 x 260384 x 480
Size1.39 inchesNA1.04 inches1.39 inches1.3ionches40mm
TouchNA
TypeAMOLEDLEDLCDAMOLEDMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance1 ATM1 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearNABuilt-inAndroid WearWear OSWatchOS 5
Apps
Music

All Wearables