WhatsApp, in its latest update, has included a feature that lets iPhone users unlock the app with their biometrics. The build version 2.19.20 has received this feature which lets you add an extra layer of security to the application through Face ID and Touch ID. Here you will find the option to unlock WhatsApp through Face ID or Touch ID. The feature is not applicable to individual WhatsApp chats—it only lets you open WhatsApp with your biometrics. It also lets you view WhatsApp notifications with the body of the message as well as receive or decline WhatsApp calls.

Source: Mint February 06, 2019 09:56 UTC