Polar M600 vs. Polar Loop 2 vs. Michael Kors Grayson vs. Fitbit Charge vs. Michael Kors Grayson vs. Apple Watch Ultra

 
M600
Loop 2
Grayson
Charge
Grayson
Watch Ultra
 PolarM600Remove Buy NowPolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitChargeRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$330$120$350$130$350$799
Release201620152018201420182022

Activity & Fitness

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

Battery

Duration2 days8 days (without notifications)24 hours7-10 days24 hours36 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a453 x 454NA453x454502x410 pixels
Size1.3 inchesn/a1.39 inchesNA1.39 inches1.92 inches
Touchn/aNA
TypeTFTLEDAMOLEDOLEDAMOLED

Functions

Audio SpeakerAlerts only
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX82 ATM1 ATM1 ATM1 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid WearNAAndroid WearWatchOS 9
Apps
Music

All Wearables