Polar M600 vs. Fitbit Charge 2 vs. Garmin Vivosmart vs. Fitbit Ionic vs. Michael Kors Grayson vs. Michael Kors Grayson

 
M600
Charge 2
Vivosmart
Ionic
Grayson
Grayson
 PolarM600Remove Buy NowFitbitCharge 2Remove Buy NowGarminVivosmartRemove Buy NowFitbitIonicRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$330$150$170$299$350$350
Release201620162014201720182018

Activity & Fitness

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

Battery

Duration2 days5 days7 days4+ days24 hours24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a128 x 16348x250453 x 454453x454
Size1.3 inchesn/a1.41 inches1.421.39 inches1.39 inches
Touchn/an/a
TypeTFTOLEDOLEDOLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a5 ATM50m1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/aFitbit OSAndroid WearAndroid Wear
Apps
Music

All Wearables