Polar M600 vs. Sony SmartBand 2 vs. Casio G-Shock GBA800 vs. Michael Kors Grayson vs. Fitbit Charge HR vs. Michael Kors Grayson

 
M600
SmartBand 2
G-Shock GBA800
Grayson
Charge HR
Grayson
 PolarM600Remove Buy NowSonySmartBand 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge HRRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$330$130$120$350$150$350
Release201620152018201820152018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days2 days2 years24 hours5 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/a453 x 454NA453x454
Size1.3 inchesn/a1.39 inchesNA1.39 inches
Touchn/an/aNA
TypeTFTn/aAMOLEDOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8IP5820 ATM1 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables