Fitbit Flex 2 vs. Amazfit Cor vs. Garmin Forerunner 235 vs. Michael Kors Grayson vs. Polar A370 vs. Michael Kors Grayson

 
Flex 2
Cor
Forerunner 235
Grayson
A370
Grayson
 FitbitFlex 2Remove Buy NowAmazfitCorRemove Buy NowGarminForerunner 235Remove Buy NowMichael KorsGraysonRemove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$79.99$299.99$350$179.95$350
Release201620182017201820172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 days9 days24 hoursUp to 3 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a80 x 160215 x 180453 x 454160 x 80453x454
Sizen/a1.23 inches1.23 inches1.39 inches1.18 inches1.39 inches
Touchn/a
TypeLEDIPS LCDMIPAMOLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM1 ATMWR301 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearAndroid Wear
Apps
Music

All Wearables