Fitbit Flex 2 vs. Fitbit Ionic vs. Apple Watch vs. Michael Kors Grayson vs. Pebble Core vs. Michael Kors Grayson

 
Flex 2
Ionic
Watch
Grayson
Core
Grayson
 FitbitFlex 2Remove Buy NowFitbitIonicRemove Buy NowAppleWatchRemove Buy NowMichael KorsGraysonRemove Buy NowPebbleCoreRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$299$349$350$99$350
Release201620172015201820162018

Activity & Fitness

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

Battery

Duration5 days4+ days18 hours24 hoursNA24 hours
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a348x250340 x 272 or 390 x 312453 x 454NA453x454
Sizen/a1.421.5 inches or 1.65 inches1.39 inchesNA1.39 inches
Touchn/aNA
TypeLEDOLEDAMOLEDAMOLEDNAAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50mIPX71 ATMNA1 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aFitbit OSWatch OSAndroid WearNAAndroid Wear
Apps
Music

All Wearables