Pebble Classic vs. Fitbit Flex 2 vs. Withings Pulse Ox vs. Michael Kors Grayson vs. Fitbit Charge 3 vs. Michael Kors Grayson

 
Classic
Flex 2
Pulse Ox
Grayson
Charge 3
Grayson
 PebbleClassicRemove Buy NowFitbitFlex 2Remove Buy NowWithingsPulse OxRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge 3Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$99$100$120$350$150$350
Release201320162014201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5-7 days5 days2 weeks24 hours7 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/an/a
Macn/an/a
Windowsn/an/aNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/ablue
Resolution168 x 144n/a128 x 32453 x 45466 x 18453x454
Size1.26 inchesn/an/a1.39 inches.721 inches1.39 inches
Touchn/aSwipe
Typee-paperLEDOLEDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/an/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables