Fitbit Ionic vs. Michael Kors Grayson vs. Garmin Vivofit 4 vs. Michael Kors Access Sofie HR vs. Michael Kors Grayson vs. Apple Series 6

 
Ionic
Grayson
Vivofit 4
Access Sofie HR
Grayson
Series 6
 FitbitIonicRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivofit 4Remove Buy NowMichael KorsAccess Sofie HRRemove Buy NowMichael KorsGraysonRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$299$350$79.95$395$350$399
Release201720182018201920182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days24 hours1 year2 days24 hoursNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250453 x 45488 x 88390 x 390453x454384 x 480
Size1.421.39 inchesNA1.19 inches1.39 inches40mm
Touch
TypeOLEDAMOLEDNAOMOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance50m1 ATM5 ATM0.3 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSAndroid WearWear OSAndroid WearWatchOS 5
Apps
Music

All Wearables