Casio WSD-F20A vs. Garmin Forerunner 45 vs. Amazfit GTS vs. Apple SE

 
WSD-F20A
Forerunner 45
GTS
SE
 CasioWSD-F20ARemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTSRemove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$399$199$150$279
Release2018201920192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day7 days14 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320208 x 208348 x 442384 x 480
Size1.32 inches1.04 inches1.65 inches40mm
Touch
TypeLCDLCDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSBuilt-inWear OSWatchOS 5
Apps
Music

All Wearables