Fitbit Ionic vs. Garmin Fenix 5 vs. Garmin Forerunner 935 vs. Michael Kors Grayson vs. Garmin Vivofit 4 vs. Michael Kors Grayson

 
Ionic
Fenix 5
Forerunner 935
Grayson
Vivofit 4
Grayson
 FitbitIonicRemove Buy NowGarminFenix 5Remove Buy NowGarminForerunner 935Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivofit 4Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$299$599.99$500$350$79.95$350
Release201720172017201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days2 WeeksUp to 2 weeks24 hours1 year24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250240 x 240240 x 240453 x 45488 x 88453x454
Size1.421.2 inches1.2 inches1.39 inchesNA1.39 inches
Touch
TypeOLEDnaLCDAMOLEDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m10 ATM5 ATM1 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSAndroid WearAndroid Wear
Apps
Music

All Wearables