ASUS ZenWatch 2 vs. Pebble Steel vs. Polar M400 vs. Fitbit Ionic vs. Garmin Vivofit 4

 
ZenWatch 2
Steel
M400
Ionic
Vivofit 4
 ASUSZenWatch 2Remove Buy NowPebbleSteelRemove Buy NowPolarM400Remove Buy NowFitbitIonicRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$150$150$200$299$79.95
Release20162014201420172018

Activity & Fitness

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

Battery

Durationn/a5-7 days8 hours to 30 days4+ days1 year
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320168 x 144n/a348x25088 x 88
Size1.63 inches or 1.45 inch1.26 inchesn/a1.42NA
Touch
TypeAMOLEDe-papern/aOLEDNA

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM3 ATM50m5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearPebble OSn/aFitbit OS
Apps
Music

All Wearables