iPhone Duo’s folding design lets users take selfies while using the rear camera system, with the outer display helping frame the shot while the phone is open.
That gives iPhone Duo an advantage over a conventional iPhone when image quality matters. Instead of relying only on a front-facing camera, users can position the foldable so the subject can see a preview while the rear cameras capture the image.
The same idea can also help when somebody else is taking the photo. The outer screen can provide a preview to the person being photographed, making it easier to adjust positioning before the shutter is pressed.
Why use the rear cameras for selfies?
Rear cameras are designed for the iPhone’s primary photography duties and can provide capabilities that are not always available from a front-facing camera. Being able to see yourself while using them makes those cameras much more practical for self-portraits.
The foldable design can also make hands-free positioning easier in some situations, allowing iPhone Duo to sit partially folded while a photo is composed.
