iPhone Duo: Seven Hardware Features No Other iPhone in Apple’s Lineup Has

Most of the iPhone Duo’s specification sheet is shared with the iPhone 18 Pro Max, down to the chip, the radios and the water rating. Seven hardware entries on it are not, and they are the only places where Apple’s $1,999 foldable is genuinely alone in the lineup: two displays, a nano-texture finish, Touch ID, a camera under the screen, two...