Pebble Time Round vs. TomTom Spark vs. Michael Kors Grayson vs. Fitbit Flex vs. Polar Loop vs. Michael Kors Grayson

 
Time Round
Spark
Grayson
Flex
Loop
Grayson
 PebbleTime RoundRemove Buy NowTomTomSparkRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowPolarLoopRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$200$150$350$100$100$350
Release201520152018201320132018

Activity & Fitness

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

Battery

Duration2 daysn/a24 hours5 days5 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a453 x 454NANA453x454
Sizeroundn/a1.39 inchesNANA1.39 inches
TouchNA
Typee-paperLCDAMOLEDLEDLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM1 ATM1 ATM2 ATM1 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemPebble OSn/aAndroid WearNANAAndroid Wear
Apps
Music

All Wearables