Polar M600 vs. Fitbit Alta vs. Garmin Vivosmart HR vs. Michael Kors Grayson vs. Fitbit Charge vs. Michael Kors Grayson

 
M600
Alta
Vivosmart HR
Grayson
Charge
Grayson
 PolarM600Remove Buy NowFitbitAltaRemove Buy NowGarminVivosmart HRRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitChargeRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$330$130$170$350$130$350
Release201620162015201820142018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days5 days24 hours7-10 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a160 x 68453 x 454NA453x454
Size1.3 inchesn/a1.08 inches1.39 inchesNA1.39 inches
Touchn/an/aNA
TypeTFTOLEDn/aAMOLEDOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemAndroid Wearn/an/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables