Casio G-Shock GBA800 vs. Casio WSD-F20A vs. Fitbit Flex vs. Apple Watch Series 4 vs. Apple Watch Series 5

 
G-Shock GBA800
WSD-F20A
Flex
Watch Series 4
Watch Series 5
 CasioG-Shock GBA800Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowAppleWatch Series 5Remove Buy Now

Basic Info

Suggested Price$120$399$100$329$329
Release20182018201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 years1 day5 daysNot YetNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320NA384 x 480384 x 480
Size1.32 inchesNA1.78 inches1.78 Inches
TouchNA
TypeLCDLEDMicroLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance20 ATM5 ATM1 ATMNot YetNot Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNAWatch OS 5WatchOS 5
Apps
Music

All Wearables