Polar M400 vs. Samsung Gear S vs. Michael Kors Grayson vs. Motorola Moto 360 (1st Gen) vs. Fitbit Charge 3 vs. Michael Kors Grayson

 
M400
Gear S
Grayson
Moto 360 (1st Gen)
Charge 3
Grayson
 PolarM400Remove Buy NowSamsungGear SRemove Buy NowMichael KorsGraysonRemove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowFitbitCharge 3Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$200$250$350$150$150$350
Release201420132018201420182018

Activity & Fitness

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

Battery

Duration8 hours to 30 daysn/a24 hours1 day7 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/aNA
Windowsn/aNANot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a480 x 360453 x 454320 x 26066 x 18453x454
Sizen/a2 inches1.39 inches1.56 inches.721 inches1.39 inches
Touch
Typen/aSuper AMOLEDAMOLEDLCDOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP671 ATMIP675 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenAndroid WearAndroid WearNAAndroid Wear
Apps
MusicNA

All Wearables