How to enable WhatsApp Dark Mode on Android Phone is very easy but you have to be running the latest WhatsApp beta version and running Android 10 OS.
And here are the steps to enable WhatsApp Dark Mode
Step 1: Open the app and tap on the three-dot action overflow menu button at the top right corner.
Step 2: In the action overflow menu, tap on the ‘Settings’ option.
Step 3: Under Settings, tap on ‘Chats’.
Step 4: Select ‘Themes’.
Step 5: In the ‘Choose Theme’ dialogue box, select Dark.
Step 6: That’s it. As soon as you select the option, you will see the new interface.
How to download WhatsApp Beta
Open Google Chrome or any web browser on your phone and find the link at Techspot.