Apple Watch vs. Casio G-Shock GBA800 vs. Garmin 645 Music vs. Fitbit Charge HR vs. Fitbit Flex

 
Watch
G-Shock GBA800
645 Music
Charge HR
Flex
 AppleWatchRemove Buy NowCasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy NowFitbitCharge HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$349$120$450$150$100
Release20152018201820152013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours2 years7 days5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312240 x 240NANA
Size1.5 inches or 1.65 inches1.2 inchesNANA
TouchNANA
TypeAMOLEDMIPOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX720 ATM5 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSNANA
Apps
Music

All Wearables