Samsung Gear S2 vs. Michael Kors Grayson vs. Fitbit Charge HR vs. Garmin Forerunner 45 vs. Michael Kors Grayson vs. Xiaomi Mi Band 4

 
Gear S2
Grayson
Charge HR
Forerunner 45
Grayson
Mi Band 4
 SamsungGear S2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge HRRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$300$350$150$199$350$25
Release201520182015201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days24 hours5 days7 days24 hours20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360453 x 454NA208 x 208453x454120x240
Size1.2 inches1.39 inchesNA1.04 inches1.39 inches0.95 inches
TouchNA
TypeSuper AMOLEDAMOLEDOLEDLCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP681 ATM1 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenAndroid WearNABuilt-inAndroid WearAMAZFIT OS
Apps
Music

All Wearables