Polar M600 vs. Polar Loop 2 vs. Garmin Forerunner 45 vs. Garmin VivoActive 4

 
M600
Loop 2
Forerunner 45
VivoActive 4
 PolarM600Remove Buy NowPolarLoop 2Remove Buy NowGarminForerunner 45Remove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$330$120$199$349
Release2016201520192019

Activity & Fitness

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

Battery

Duration2 days8 days (without notifications)7 days8 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a208 x 208260 x 260
Size1.3 inchesn/a1.04 inches1.3ionches
Touchn/a
TypeTFTLEDLCDMIP

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX82 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aBuilt-inWear OS
Apps
Music

All Wearables