Casio WSD-F20A vs. Fitbit Flex vs. Apple Watch Series 5 vs. Diesel On Full Guard 2.5 vs. Garmin Forerunner 45

 
WSD-F20A
Flex
Watch Series 5
On Full Guard 2.5
Forerunner 45
 CasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 5Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$399$100$329$325$199
Release20182013201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day5 daysNot Yet4 days7 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320NA384 x 480454x454208 x 208
Size1.32 inchesNA1.78 Inches1.39 inches1.04 inches
TouchNA
TypeLCDLEDMicroLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATMNot Yet3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNAWatchOS 5Wear OSBuilt-in
Apps
Music

All Wearables