Polar A360 vs. Withings Go vs. Michael Kors Grayson vs. Jawbone UP4 vs. Garmin Forerunner 45 vs. Michael Kors Grayson

 
A360
Go
Grayson
UP4
Forerunner 45
Grayson
 PolarA360Remove Buy NowWithingsGoRemove Buy NowMichael KorsGraysonRemove Buy NowJawboneUP4Remove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$200$80$350$200$199$350
Release201520162018201520192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration12 days8 months24 hoursNA7 days24 hours
Rechargeable

Compatibility

Androidn/a
iOSn/a
Windows Phonen/an/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution160 x 80n/a453 x 454NA208 x 208453x454
Size1.18 inchesn/a1.39 inchesNA1.04 inches1.39 inches
Touchn/aNA
Typen/aE-InkAMOLEDNALCDAMOLED

Functions

Audio Speaker
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR305 ATM1 ATMNA5 ATM1 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aAndroid WearNABuilt-inAndroid Wear
Appsn/a
MusicNA

All Wearables