Polar M400 vs. Fitbit One vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Swatch Touch Zero One vs. Apple Series 6

 
M400
One
Grayson
Grayson
Touch Zero One
Series 6
 PolarM400Remove Buy NowFitbitOneRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowSwatchTouch Zero OneRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$200$100$350$350$220$399
Release201420122018201820152020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleepn/a
Steps
Swimn/a

Battery

Duration8 hours to 30 days10-14 days24 hours24 hoursn/aNot yet
Rechargeable

Compatibility

Androidn/a
iOSn/a
Windows Phonen/an/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a453 x 454453x454n/a384 x 480
Sizen/an/a1.39 inches1.39 inchesn/a40mm
Touch
Typen/aOLEDAMOLEDAMOLEDn/aMicroLED

Functions

Audio SpeakerAlerts onlyn/a
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimetern/a
Ultraviolet Sensor5 ATM
Water Resistance3 ATMSplast Resistant1 ATM1 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aAndroid WearAndroid Wearn/aWatchOS 5
Apps
Musicn/a

All Wearables