ASUS ZenWatch 2 vs. Fitbit Ionic vs. Fitbit Charge 3 vs. Polar A370 vs. Garmin Vivosmart 4

 
ZenWatch 2
Ionic
Charge 3
A370
Vivosmart 4
 ASUSZenWatch 2Remove Buy NowFitbitIonicRemove Buy NowFitbitCharge 3Remove Buy NowPolarA370Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$150$299$150$179.95$130
Release20162017201820172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a4+ days7 daysUp to 3 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/aNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution320 x 320348x25066 x 18160 x 8048 x 128
Size1.63 inches or 1.45 inch1.42.721 inches1.18 inches0.74 inches
Touch
TypeAMOLEDOLEDOLEDTFT LCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP6750m5 ATMWR305 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearFitbit OSNA
Apps
Music

All Wearables