Fitbit One vs. Casio WSD-F20A vs. Michael Kors Grayson vs. Garmin Vivosmart 3 vs. Michael Kors Grayson vs. Apple Series 6

 
One
WSD-F20A
Grayson
Vivosmart 3
Grayson
Series 6
 FitbitOneRemove Buy NowCasioWSD-F20ARemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 3Remove Buy NowMichael KorsGraysonRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$399$350$139.99$350$399
Release201220182018201720182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days1 day24 hours5 days24 hoursNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320453 x 45464 x 128453x454384 x 480
Sizen/a1.32 inches1.39 inchesNA1.39 inches40mm
Touch
TypeOLEDLCDAMOLEDOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water ResistanceSplast Resistant5 ATM1 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSAndroid WearAndroid WearWatchOS 5
Apps
Music

All Wearables