Apple Watch Series 3 vs. Casio G-Shock GBA800 vs. Casio WSD-F20A vs. Fitbit Flex vs. Apple Series 6

 
Watch Series 3
G-Shock GBA800
WSD-F20A
Flex
Series 6
 AppleWatch Series 3Remove Buy NowCasioG-Shock GBA800Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$329$120$399$100$399
Release20172018201820132020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours2 years1 day5 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312320 x 320NA384 x 480
Size1.5 inches or 1.65 inches1.32 inchesNA40mm
TouchNA
TypeAMOLEDLCDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM20 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4Wear OSNAWatchOS 5
Apps
Music

All Wearables