Motorola Moto 360 (2nd Gen) vs. Fitbit Charge 2 vs. Michael Kors Grayson vs. Fitbit Flex vs. Michael Kors Grayson vs. Garmin Vivosmart 4

 
Moto 360 (2nd Gen)
Charge 2
Grayson
Flex
Grayson
Vivosmart 4
 MotorolaMoto 360 (2nd Gen)Remove Buy NowFitbitCharge 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$300$150$350$100$350$130
Release201520162018201320182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1.5 days5 days24 hours5 days24 hours7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330n/a453 x 454NA453x45448 x 128
Size1.37 inches or 1.56 inchesn/a1.39 inchesNA1.39 inches0.74 inches
Touchn/aNA
TypeLCDOLEDAMOLEDLEDAMOLEDOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67n/a1 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid WearNAAndroid Wear
Apps
Musicn/a

All Wearables