ASUS ZenWatch 2 vs. Garmin Forerunner 225 vs. Garmin 645 Music vs. Fitbit Charge HR

 
ZenWatch 2
Forerunner 225
645 Music
Charge HR
 ASUSZenWatch 2Remove Buy NowGarminForerunner 225Remove Buy NowGarmin645 MusicRemove Buy NowFitbitCharge HRRemove Buy Now

Basic Info

Suggested Price$150$300$450$150
Release2016201520182015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a10 hours to 4 weeks7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320180 x 180240 x 240NA
Size1.63 inches or 1.45 inch1 inch1.2 inchesNA
TouchNA
TypeAMOLEDn/aMIPOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM5 ATM1 ATM

Notifications

Phonen/a
Emailsn/an/a
Textsn/an/a

Software

Operating SystemAndroid Wearn/aNA
Appsn/a
Musicn/a

All Wearables