The iPhone Duo is now available to preorder at $1,999

The iPhone Duo is Apple’s first foldable phone. | Photo by Antonio Di Benedetto / The Verge Few phones have been more anticipated than a foldable iPhone, but it's finally here. The iPhone Duo was unveiled during Apple's "Surprise and shine" event alongside the iPhone 18 Pro and the Apple Watch Series 12 and Ultra 4 models.