Fitbit Flex 2 vs. Casio WSD-F20A vs. Apple Watch Series 5 vs. Apple Watch 8

 
Flex 2
WSD-F20A
Watch Series 5
Watch 8
 FitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch Series 5Remove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$100$399$329$499
Release2016201820192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 dayNot Yet18 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 320384 x 480340 x 272 or 390 x 312
Sizen/a1.32 inches1.78 Inches1.5 inches or 1.65 inches
Touchn/a
TypeLEDLCDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWatchOS 5WatchOS 9
Apps
Music

All Wearables