Apple Watch vs. Asus ZenWatch vs. Garmin 645 Music vs. Fitbit Charge HR vs. Fitbit Flex

 
Watch
ZenWatch
645 Music
Charge HR
Flex
 AppleWatchRemove Buy NowAsusZenWatchRemove Buy NowGarmin645 MusicRemove Buy NowFitbitCharge HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$349$150$450$150$100
Release20152014201820152013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hoursNA7 days5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANANANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312320 x 320240 x 240NANA
Size1.5 inches or 1.65 inches1.63 inches1.2 inchesNANA
TouchNANA
TypeAMOLEDAMOLEDMIPOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX7IP555 ATM1 ATM1 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemWatch OSAndroid WearNANA
Apps
Music

All Wearables