Polar M600 vs. Garmin 645 Music vs. Michael Kors Grayson vs. Jawbone UP2 vs. Polar A370 vs. Michael Kors Grayson

 
M600
645 Music
Grayson
UP2
A370
Grayson
 PolarM600Remove Buy NowGarmin645 MusicRemove Buy NowMichael KorsGraysonRemove Buy NowJawboneUP2Remove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$330$450$350$100$179.95$350
Release201620182018201520172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days7 days24 hours7 daysUp to 3 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240240 x 240453 x 454NA160 x 80453x454
Size1.3 inches1.2 inches1.39 inchesNA1.18 inches1.39 inches
Touchn/aNA
TypeTFTMIPAMOLEDNATFT LCDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM1 ATMSplash resistantWR301 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid WearNAAndroid Wear
Apps
Music

All Wearables