WhatsApp introduced fingerprint authentication for Android users in its latest version which was previously available for beta users. But now it’s available for all users

So, I’ll show you how to enable it in Android

Step 1: Download or update latest version of WhatsApp from Play Store.

Step 2: Go into WhatsApp settings

Step 3: Go into Account and then  Privacy

Step 4: Scroll down then you can see the fingerprint lock

Now you can set fingerprint authentication.