Polar M400 vs. Fitbit Charge 2 vs. Moov Now vs. Samsung Gear Fit vs. Garmin VivoActive 4

 
M400
Charge 2
Now
Gear Fit
VivoActive 4
 PolarM400Remove Buy NowFitbitCharge 2Remove Buy NowMoovNowRemove Buy NowSamsungGear FitRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$200$150$79$150$349
Release20142016201520142019

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days6 months2-3 days8 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/an/a432 x 128260 x 260
Sizen/an/an/a1.84 inches1.3ionches
Touchn/an/a
Typen/aOLEDn/aSuper AMOLEDMIP

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimetern/a
Ultraviolet Sensor
Water Resistance3 ATMn/an/aIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aNAWear OS
Apps
Music

All Wearables