Polar M400 vs. Fitbit Charge 2 vs. Moov Now vs. Asus ZenWatch vs. Polar Loop

 
M400
Charge 2
Now
ZenWatch
Loop
 PolarM400Remove Buy NowFitbitCharge 2Remove Buy NowMoovNowRemove Buy NowAsusZenWatchRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$200$150$79$150$100
Release20142016201520142013

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days6 monthsNA5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/an/a320 x 320NA
Sizen/an/an/a1.63 inchesNA
Touchn/an/a
Typen/aOLEDn/aAMOLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimetern/a
Ultraviolet Sensor
Water Resistance3 ATMn/an/aIP552 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/an/an/aAndroid WearNA
Apps
Music

All Wearables