Fitbit Flex 2 vs. Fitbit One vs. Casio WSD-F20A vs. Michael Kors Grayson vs. Fitbit Versa 2 vs. Michael Kors Grayson

 
Flex 2
One
WSD-F20A
Grayson
Versa 2
Grayson
 FitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowCasioWSD-F20ARemove Buy NowMichael KorsGraysonRemove Buy NowFitbitVersa 2Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$100$399$350$199$350
Release201620122018201820192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days10-14 days1 day24 hours5 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 320453 x 454300 x 300453x454
Sizen/an/a1.32 inches1.39 inches1.34 inches1.39 inches
Touchn/a
TypeLEDOLEDLCDAMOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplast Resistant5 ATM1 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSAndroid WearBuild-inAndroid Wear
Apps
Music

All Wearables