Fitbit Flex 2 vs. Polar M430 vs. Michael Kors Grayson vs. Jawbone UP2 vs. Polar A370 vs. Michael Kors Grayson

 
Flex 2
M430
Grayson
UP2
A370
Grayson
 FitbitFlex 2Remove Buy NowPolarM430Remove Buy NowMichael KorsGraysonRemove Buy NowJawboneUP2Remove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$255$350$100$179.95$350
Release201620172018201520172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days30 hours24 hours7 daysUp to 3 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128x128453 x 454NA160 x 80453x454
Sizen/a1.4 inch1.39 inchesNA1.18 inches1.39 inches
Touchn/aNA
TypeLEDLCDAMOLEDNATFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMWR301 ATMSplash resistantWR301 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables