Polar M600 vs. Fitbit Alta vs. Michael Kors Grayson vs. Garmin Vivofit 4 vs. Michael Kors Grayson vs. Apple Watch Ultra

 
M600
Alta
Grayson
Vivofit 4
Grayson
Watch Ultra
 PolarM600Remove Buy NowFitbitAltaRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivofit 4Remove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$330$130$350$79.95$350$799
Release201620162018201820182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days24 hours1 year24 hours36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a453 x 45488 x 88453x454502x410 pixels
Size1.3 inchesn/a1.39 inchesNA1.39 inches1.92 inches
Touchn/an/a
TypeTFTOLEDAMOLEDNAAMOLED

Functions

Audio SpeakerAlerts only
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a1 ATM5 ATM1 ATM10 ATM (100 Meters)

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemAndroid Wearn/aAndroid WearAndroid WearWatchOS 9
Apps
Music

All Wearables