Pebble Time Round vs. Polar M400 vs. Garmin Forerunner 235 vs. Michael Kors Grayson vs. Fitbit Flex vs. Michael Kors Grayson

 
Time Round
M400
Forerunner 235
Grayson
Flex
Grayson
 PebbleTime RoundRemove Buy NowPolarM400Remove Buy NowGarminForerunner 235Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$200$200$299.99$350$100$350
Release201520142017201820132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 hours to 30 days9 days24 hours5 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a215 x 180453 x 454NA453x454
Sizeroundn/a1.23 inches1.39 inchesNA1.39 inches
TouchNA
Typee-papern/aMIPAMOLEDLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX73 ATM5 ATM1 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables