Casio WSD-F20A vs. Garmin Forerunner 235 vs. Garmin VivoActive 4 vs. Apple Series 6

 
WSD-F20A
Forerunner 235
VivoActive 4
Series 6
 CasioWSD-F20ARemove Buy NowGarminForerunner 235Remove Buy NowGarminVivoActive 4Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$399$299.99$349$399
Release2018201720192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day9 days8 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320215 x 180260 x 260384 x 480
Size1.32 inches1.23 inches1.3ionches40mm
Touch
TypeLCDMIPMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSWear OSWatchOS 5
Apps
Music

All Wearables