Polar M600 vs. Garmin Forerunner 935 vs. Michael Kors Grayson vs. Garmin Forerunner 45 vs. Michael Kors Grayson vs. Garmin Vivosmart 4

 
M600
Forerunner 935
Grayson
Forerunner 45
Grayson
Vivosmart 4
 PolarM600Remove Buy NowGarminForerunner 935Remove Buy NowMichael KorsGraysonRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$330$500$350$199$350$130
Release201620172018201920182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 daysUp to 2 weeks24 hours7 days24 hours7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240240 x 240453 x 454208 x 208453x45448 x 128
Size1.3 inches1.2 inches1.39 inches1.04 inches1.39 inches0.74 inches
Touchn/a
TypeTFTLCDAMOLEDLCDAMOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM1 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid WearBuilt-inAndroid Wear
Apps
Music

All Wearables