Pebble Time vs. Fitbit Charge 2 vs. Michael Kors Grayson vs. Fitbit Flex vs. Polar A370 vs. Michael Kors Grayson

 
Time
Charge 2
Grayson
Flex
A370
Grayson
 PebbleTimeRemove Buy NowFitbitCharge 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$150$150$350$100$179.95$350
Release201520162018201320172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5 days24 hours5 daysUp to 3 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/a453 x 454NA160 x 80453x454
Size1.26 inchesn/a1.39 inchesNA1.18 inches1.39 inches
Touchn/aNA
Typee-paperOLEDAMOLEDLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a1 ATM1 ATMWR301 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables