Garmin Forerunner 225 vs. Polar M400 vs. Michael Kors Grayson vs. Fitbit Flex vs. Garmin Vivosport vs. Michael Kors Grayson

 
Forerunner 225
M400
Grayson
Flex
Vivosport
Grayson
 GarminForerunner 225Remove Buy NowPolarM400Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowGarminVivosportRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$300$200$350$100$199$350
Release201520142018201320172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks8 hours to 30 days24 hours5 days7 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/a453 x 454NA72 x 144453x454
Size1 inchn/a1.39 inchesNANA1.39 inches
TouchNA
Typen/an/aAMOLEDLEDMIPAMOLED

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM1 ATM1 ATM5 ATM1 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aAndroid WearNAAndroid Wear
Appsn/a
Musicn/a

All Wearables