iPhone Duo's next-gen prototypes are trying to cram in Face ID

Apple is developing next-gen prototypes for the iPhone Duo that attempt to integrate Face ID. This follows the initial foldable phone design which utilized Touch ID located in the side button. The decision to use Touch ID was intended to ensure reliable authentication across all four foldable postures. The iPhone Duo is positioned with a starting price of $1,999, while the shift toward Face ID represents a return to a feature Apple previously replaced on most models.