TomTom Spark vs. Fitbit Ionic vs. Michael Kors Grayson vs. Fitbit Flex vs. Pebble Core vs. Michael Kors Grayson

 
Spark
Ionic
Grayson
Flex
Core
Grayson
 TomTomSparkRemove Buy NowFitbitIonicRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowPebbleCoreRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$150$299$350$100$99$350
Release201520172018201320162018

Activity & Fitness

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

Battery

Durationn/a4+ days24 hours5 daysNA24 hours
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a348x250453 x 454NANA453x454
Sizen/a1.421.39 inchesNANA1.39 inches
TouchNANA
TypeLCDOLEDAMOLEDLEDNAAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/aNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m1 ATM1 ATMNA1 ATM

Notifications

Phonen/aNA
Emailsn/aNA
Textsn/aNA

Software

Operating Systemn/aFitbit OSAndroid WearNANAAndroid Wear
Apps
Music

All Wearables