Fitbit Flex 2 vs. Asus VivoWatch vs. Michael Kors Grayson vs. Fitbit Flex vs. Apple Watch Series 4 vs. Michael Kors Grayson

 
Flex 2
VivoWatch
Grayson
Flex
Watch Series 4
Grayson
 FitbitFlex 2Remove Buy NowAsusVivoWatchRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$160$350$100$329$350
Release201620182018201320182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hours to 10 days24 hours5 daysNot Yet24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128 x 128453 x 454NA384 x 480453x454
Sizen/aNA1.39 inchesNA1.78 inches1.39 inches
Touchn/aNA
TypeLEDNAAMOLEDLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance5 ATMIP671 ATM1 ATMNot Yet1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aKoodOSAndroid WearNAWatch OS 5Android Wear
Apps
Music

All Wearables