WhatsApp’s video-calling feature is now live on a beta version of the app. This is only for Android user not for all others.
WhatsApp is one of the most popular messaging apps on the planet, so even small changes make big attention. This isn’t a small change, though. This is a big one. WhatsApp is rolling out support for video calls in the Android app.
if you are not beta tester go to android play store and signup for beta tester. then you can have video call feature.
Here is how to guide
Beta Version Download link