Polar M600 vs. Polar Loop 2 vs. Garmin 645 Music vs. Jawbone UP2 vs. Michael Kors Access Sofie HR

 
M600
Loop 2
645 Music
UP2
Access Sofie HR
 PolarM600Remove Buy NowPolarLoop 2Remove Buy NowGarmin645 MusicRemove Buy NowJawboneUP2Remove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$330$120$450$100$395
Release20162015201820152019

Activity & Fitness

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

Battery

Duration2 days8 days (without notifications)7 days7 days2 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a240 x 240NA390 x 390
Size1.3 inchesn/a1.2 inchesNA1.19 inches
Touchn/aNA
TypeTFTLEDMIPNAOMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX82 ATM5 ATMSplash resistant0.3 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aNAWear OS
Apps
Music

All Wearables