Polar M600 vs. Sony SmartWatch 3 vs. Garmin Vivosmart HR vs. Michael Kors Grayson vs. Fitbit Flex vs. Michael Kors Grayson

 
M600
SmartWatch 3
Vivosmart HR
Grayson
Flex
Grayson
 PolarM600Remove Buy NowSonySmartWatch 3Remove Buy NowGarminVivosmart HRRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$330$250$170$350$100$350
Release201620142015201820132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days2 days5 days24 hours5 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240320 x 320160 x 68453 x 454NA453x454
Size1.3 inches1.6 inches1.08 inches1.39 inchesNA1.39 inches
Touchn/aNA
TypeTFTTFT LCDn/aAMOLEDLEDAMOLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8IP685 ATM1 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid Wearn/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables