Garmin Vivoactive HR vs. Polar M400 vs. Fitbit Ionic vs. Garmin Forerunner 235 vs. Michael Kors Grayson vs. Michael Kors Grayson

 
Vivoactive HR
M400
Ionic
Forerunner 235
Grayson
Grayson
 GarminVivoactive HRRemove Buy NowPolarM400Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 235Remove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$250$200$299$299.99$350$350
Release201620142017201720182018

Activity & Fitness

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

Battery

Duration13 hours to 8 days8 hours to 30 days4+ days9 days24 hours24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205n/a348x250215 x 180453 x 454453x454
Size1.38 inchesn/a1.421.23 inches1.39 inches1.39 inches
Touch
Typen/an/aOLEDMIPAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM50m5 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aFitbit OSAndroid WearAndroid Wear
Apps
Music

All Wearables