Fitbit Ionic vs. Garmin Forerunner 935 vs. Michael Kors Grayson vs. Diesel On Full Guard 2.5 vs. Michael Kors Grayson vs. Apple Watch 8

 
Ionic
Forerunner 935
Grayson
On Full Guard 2.5
Grayson
Watch 8
 FitbitIonicRemove Buy NowGarminForerunner 935Remove Buy NowMichael KorsGraysonRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$299$500$350$325$350$499
Release201720172018201820182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ daysUp to 2 weeks24 hours4 days24 hours18 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250240 x 240453 x 454454x454453x454340 x 272 or 390 x 312
Size1.421.2 inches1.39 inches1.39 inches1.39 inches1.5 inches or 1.65 inches
Touch
TypeOLEDLCDAMOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM1 ATM3 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSAndroid WearWear OSAndroid WearWatchOS 9
Apps
Music

All Wearables