Garmin Forerunner 225 vs. Polar M400 vs. Polar Loop 2 vs. Jaybird Reign vs. Garmin VivoActive 4

 
Forerunner 225
M400
Loop 2
Reign
VivoActive 4
 GarminForerunner 225Remove Buy NowPolarM400Remove Buy NowPolarLoop 2Remove Buy NowJaybirdReignRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$300$200$120$150$349
Release20152014201520152019

Activity & Fitness

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

Battery

Duration10 hours to 4 weeks8 hours to 30 days8 days (without notifications)5 days8 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/an/aNA260 x 260
Size1 inchn/an/aNA1.3ionches
TouchNA
Typen/an/aLEDLEDMIP

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM2 ATMNA5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/an/aNAWear OS
Appsn/a
Musicn/a

All Wearables