Fitbit Surge vs. Polar M400 vs. Garmin Vivosmart HR vs. Michael Kors Grayson vs. Michael Kors Access Sofie HR vs. Michael Kors Grayson

 
Surge
M400
Vivosmart HR
Grayson
Access Sofie HR
Grayson
 FitbitSurgeRemove Buy NowPolarM400Remove Buy NowGarminVivosmart HRRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$250$200$170$350$395$350
Release201620142015201820192018

Activity & Fitness

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

Battery

Duration7 days8 hours to 30 days5 days24 hours2 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a160 x 68453 x 454390 x 390453x454
Size1.26 inchesn/a1.08 inches1.39 inches1.19 inches1.39 inches
Touch
TypeMonochrome LCDn/an/aAMOLEDOMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM5 ATM1 ATM0.3 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aAndroid WearWear OSAndroid Wear
Apps
Music

All Wearables