Pebble Time Round vs. Polar M600 vs. Fitbit Flex 2 vs. Garmin 645 Music vs. Michael Kors Grayson vs. Michael Kors Grayson

 
Time Round
M600
Flex 2
645 Music
Grayson
Grayson
 PebbleTime RoundRemove Buy NowPolarM600Remove Buy NowFitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$200$330$100$450$350$350
Release201520162016201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days2 days5 days7 days24 hours24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240n/a240 x 240453 x 454453x454
Sizeround1.3 inchesn/a1.2 inches1.39 inches1.39 inches
Touchn/an/a
Typee-paperTFTLEDMIPAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX7IPX85 ATM5 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSAndroid Wearn/aAndroid WearAndroid Wear
Apps
Music

All Wearables