Pebble Steel vs. Fitbit Flex 2 vs. Michael Kors Grayson vs. Fitbit Charge HR vs. Jawbone UP4 vs. Michael Kors Grayson

 
Steel
Flex 2
Grayson
Charge HR
UP4
Grayson
 PebbleSteelRemove Buy NowFitbitFlex 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge HRRemove Buy NowJawboneUP4Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$150$100$350$150$200$350
Release201420162018201520152018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5-7 days5 days24 hours5 daysNA24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution168 x 144n/a453 x 454NANA453x454
Size1.26 inchesn/a1.39 inchesNANA1.39 inches
Touchn/aNANA
Typee-paperLEDAMOLEDOLEDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM1 ATMNA1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aAndroid WearNANAAndroid Wear
Apps
MusicNA

All Wearables