Polar M600 vs. Polar Loop 2 vs. Apple Watch vs. Casio G-Shock GBA800 vs. Garmin 645 Music

 
M600
Loop 2
Watch
G-Shock GBA800
645 Music
 PolarM600Remove Buy NowPolarLoop 2Remove Buy NowAppleWatchRemove Buy NowCasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy Now

Basic Info

Suggested Price$330$120$349$120$450
Release20162015201520182018

Activity & Fitness

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

Battery

Duration2 days8 days (without notifications)18 hours2 years7 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/a340 x 272 or 390 x 312240 x 240
Size1.3 inchesn/a1.5 inches or 1.65 inches1.2 inches
Touchn/a
TypeTFTLEDAMOLEDMIP

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX82 ATMIPX720 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aWatch OS
Apps
Music

All Wearables