Michael Kors Grayson vs. Fitbit Flex vs. Pebble Core vs. Garmin Forerunner 45 vs. Michael Kors Grayson vs. Garmin Vivosmart 4

 
Grayson
Flex
Core
Forerunner 45
Grayson
Vivosmart 4
 Michael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowPebbleCoreRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$350$100$99$199$350$130
Release201820132016201920182018

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heart
Oxygen
SleepNA
Steps
Swim

Battery

Duration24 hours5 daysNA7 days24 hours7 days
Rechargeable

Compatibility

Android
iOSNA
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution453 x 454NANA208 x 208453x45448 x 128
Size1.39 inchesNANA1.04 inches1.39 inches0.74 inches
TouchNANA
TypeAMOLEDLEDNALCDAMOLEDOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATM1 ATMNA5 ATM1 ATM5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating SystemAndroid WearNANABuilt-inAndroid Wear
Apps
Music

All Wearables