TomTom Spark vs. Withings Activite Steel vs. Michael Kors Grayson vs. Fitbit Flex vs. Michael Kors Grayson vs. Garmin Vivosmart 4

 
Spark
Activite Steel
Grayson
Flex
Grayson
Vivosmart 4
 TomTomSparkRemove Buy NowWithingsActivite SteelRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$150$170$350$100$350$130
Release201520152018201320182018

Activity & Fitness

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

Battery

Durationn/a8 months24 hours5 days24 hours7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a453 x 454NA453x45448 x 128
Sizen/a1.3 inches1.39 inchesNA1.39 inches0.74 inches
TouchNA
TypeLCDAnalogAMOLEDLEDAMOLEDOLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM1 ATM1 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables