Apple iPhone Duo review: Two screens, two experiences, two thousand dollars

The iPhone Duo is a foldable phone with two screens and a high price tag of $1,999 and up. Despite its technical impressiveness, it has some rough edges and a higher price than many users are willing to pay. The device's design feels like a step back from the standard iPhone design, and its foldable nature can make it difficult to use. As a small iPad, the iPhone Duo is surprisingly good, but as a phone, it's hard to prefer it over a regular iPhone.