Amazfit Stratos vs. Casio WSD-F20A vs. Apple Watch Series 4 vs. Apple Watch Series 5 vs. Fitbit Inspire HR

 
Stratos
WSD-F20A
Watch Series 4
Watch Series 5
Inspire HR
 AmazfitStratosRemove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch Series 4Remove Buy NowAppleWatch Series 5Remove Buy NowFitbitInspire HRRemove Buy Now

Basic Info

Suggested Price$199$399$329$329$99
Release20182018201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 dayNot YetNot Yet5 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 300320 x 320384 x 480384 x 480139 x 60
Size1.34 inches1.32 inches1.78 inches1.78 Inches1.4 inches
Touch
TypeOLEDLCDMicroLEDMicroLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemProprietaryWear OSWatch OS 5WatchOS 5Fitbit OS
Apps
Music

All Wearables