Apple's new foldable iPhone Duo has two rear cameras: a 48MP main sensor and a 48MP ultra-wide lens. It lacks a dedicated telephoto camera and variable aperture, features found on the iPhone 18 Pro. Apple markets the main camera's zoom as "2X optical quality," using the high-resolution sensor for cropping, but image quality degrades at longer focal lengths.

The Duo offers unique tricks like a foldable design for hands-free shots and a cover screen preview for selfies, but for serious zoom photography, the Pro models remain superior. The $2,000+ price may deter photography enthusiasts.