Fitbit Flex 2 vs. Casio WSD-F20A vs. Michael Kors Grayson vs. Garmin Vivosmart 3 vs. Apple Watch Series 4 vs. Michael Kors Grayson

 
Flex 2
WSD-F20A
Grayson
Vivosmart 3
Watch Series 4
Grayson
 FitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 3Remove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$399$350$139.99$329$350
Release201620182018201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day24 hours5 daysNot Yet24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 320453 x 45464 x 128384 x 480453x454
Sizen/a1.32 inches1.39 inchesNA1.78 inches1.39 inches
Touchn/a
TypeLEDLCDAMOLEDOLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM5 ATMNot Yet1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSAndroid WearWatch OS 5Android Wear
Apps
Music

All Wearables