Editorial Note: Talk Android may contain affiliate links on some articles. If you make a purchase through these links, we will earn a commission at no extra cost to you. Learn more. QR codes are ...

You can scan a QR code using the camera on your smartphone, tablet, or computer — however, you may need to download an app.

Editorial Note: Talk Android may contain affiliate links on some articles. If you make a purchase through these links, we will earn a commission at no extra cost to you. Learn more. QR codes provide a ...

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