Polar M600 vs. Fitbit Alta vs. Polar Loop 2 vs. Amazfit Arc vs. Michael Kors Grayson vs. Michael Kors Grayson

 
M600
Alta
Loop 2
Arc
Grayson
Grayson
 PolarM600Remove Buy NowFitbitAltaRemove Buy NowPolarLoop 2Remove Buy NowAmazfitArcRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$330$130$120$69.99$350$350
Release201620162015201620182018

Activity & Fitness

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

Battery

Duration2 days5 days8 days (without notifications)20 days24 hours24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/an/a72 x40453 x 454453x454
Size1.3 inchesn/an/a0.42 inches1.39 inches1.39 inches
Touchn/an/a
TypeTFTOLEDLEDOLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a2 ATMIP671 ATM1 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemAndroid Wearn/an/aAndroid WearAndroid Wear
Apps
Music

All Wearables