Microsoft Band 2 vs. Polar Loop 2 vs. Michael Kors Grayson vs. Fitbit Charge HR vs. Michael Kors Grayson vs. Garmin Vivosmart 4

 
Band 2
Loop 2
Grayson
Charge HR
Grayson
Vivosmart 4
 MicrosoftBand 2Remove Buy NowPolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge HRRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$250$120$350$150$350$130
Release201520152018201520182018

Activity & Fitness

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

Battery

Duration48 hours (without GPS)8 days (without notifications)24 hours5 days24 hours7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 128n/a453 x 454NA453x45448 x 128
Size1.36 inchesn/a1.39 inchesNA1.39 inches0.74 inches
TouchNA
TypeCapacitative TFTLEDAMOLEDOLEDAMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX72 ATM1 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables