ASUS ZenWatch 2 vs. Polar M400 vs. Fitbit Flex 2 vs. Fitbit One vs. Apple Watch Series 4

 
ZenWatch 2
M400
Flex 2
One
Watch Series 4
 ASUSZenWatch 2Remove Buy NowPolarM400Remove Buy NowFitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$150$200$100$100$329
Release20162014201620122018

Activity & Fitness

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

Battery

Durationn/a8 hours to 30 days5 days10-14 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution320 x 320n/an/an/a384 x 480
Size1.63 inches or 1.45 inchn/an/an/a1.78 inches
Touchn/a
TypeAMOLEDn/aLEDOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATM5 ATMSplast ResistantNot Yet

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid Wearn/an/an/aWatch OS 5
Apps
Music

All Wearables