ASUS ZenWatch 2 vs. Garmin Forerunner 225 vs. Apple Watch vs. Garmin 645 Music vs. Fitbit Flex

 
ZenWatch 2
Forerunner 225
Watch
645 Music
Flex
 ASUSZenWatch 2Remove Buy NowGarminForerunner 225Remove Buy NowAppleWatchRemove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$150$300$349$450$100
Release20162015201520182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a10 hours to 4 weeks18 hours7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320180 x 180340 x 272 or 390 x 312240 x 240NA
Size1.63 inches or 1.45 inch1 inch1.5 inches or 1.65 inches1.2 inchesNA
TouchNA
TypeAMOLEDn/aAMOLEDMIPLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATMIPX75 ATM1 ATM

Notifications

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

Software

Operating SystemAndroid Wearn/aWatch OSNA
Appsn/a
Musicn/a

All Wearables