How to add a new contact to WhatsApp using the Chats tab or a QR code

You can add new contacts to WhatsApp manually from the Chats tab or you can scan someone's QR code within the app.
Android

WhatsApp chat transfer is now as simple as scanning a QR code

WhatsApp is making it easier to transfer your chat histories between two phones running the same OS (Android to Android or iOS to iOS). You can now move all your chats and attachments to a new phone ...

What is a QR code? A guide to the barcode's basics, why you're seeing it everywhere, and how to scan one

QR codes are a type of barcode, or scannable pattern, that contain various forms of data, like website links, account ...
WBUR

How to get your vaccination QR code onto your phone

Maybe you’ve been nervously carrying your COVID-19 vaccine card for months, worried you'll lose it. Maybe you’ve already misplaced it and had to request a new one. Worries and hassle, be gone: you can ...

Army wants a QR code system to replace the paperwork of a new duty station

Army Human Resources hope the new digital tools can speed up the process of signing into a new base and reduce the paperwork.