Fitbit One vs. Microsoft Band 2 vs. Casio WSD-F20A vs. Michael Kors Grayson vs. Fitbit Charge vs. Michael Kors Grayson

 
One
Band 2
WSD-F20A
Grayson
Charge
Grayson
 FitbitOneRemove Buy NowMicrosoftBand 2Remove Buy NowCasioWSD-F20ARemove Buy NowMichael KorsGraysonRemove Buy NowFitbitChargeRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$250$399$350$130$350
Release201220152018201820142018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days48 hours (without GPS)1 day24 hours7-10 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 128320 x 320453 x 454NA453x454
Sizen/a1.36 inches1.32 inches1.39 inchesNA1.39 inches
TouchNA
TypeOLEDCapacitative TFTLCDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast ResistantIPX75 ATM1 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSAndroid WearNAAndroid Wear
Apps
Music

All Wearables