ASUS ZenWatch 2 vs. Polar M400 vs. Fitbit Alta vs. Fitbit Charge

 
ZenWatch 2
M400
Alta
Charge
 ASUSZenWatch 2Remove Buy NowPolarM400Remove Buy NowFitbitAltaRemove Buy NowFitbitChargeRemove Buy Now

Basic Info

Suggested Price$150$200$130$130
Release2016201420162014

Activity & Fitness

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

Battery

Durationn/a8 hours to 30 days5 days7-10 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320n/an/aNA
Size1.63 inches or 1.45 inchn/an/aNA
Touchn/aNA
TypeAMOLEDn/aOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATMn/a1 ATM

Notifications

Phone
Emailsn/an/a
Textsn/a

Software

Operating SystemAndroid Wearn/an/aNA
Apps
Music

All Wearables