Fitbit Flex 2 vs. Michael Kors Grayson vs. Fitbit Flex vs. Apple Watch Series 4 vs. Garmin Forerunner 45 vs. Michael Kors Grayson

 
Flex 2
Grayson
Flex
Watch Series 4
Forerunner 45
Grayson
 FitbitFlex 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$350$100$329$199$350
Release201620182013201820192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hours5 daysNot Yet7 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a453 x 454NA384 x 480208 x 208453x454
Sizen/a1.39 inchesNA1.78 inches1.04 inches1.39 inches
Touchn/aNA
TypeLEDAMOLEDLEDMicroLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM1 ATMNot Yet5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAWatch OS 5Built-inAndroid Wear
Apps
Music

All Wearables