A phone/tablet from Apple that debuted in the fall of 2026 along with iOS 18. The Apple world eagerly awaited the device because foldable smartphones had been available for eight years. China's Royole FlexPai was the first truly foldable in 2018, and Samsung debuted the Fold in 2019. See
Galaxy Fold.
The iPhone Duo has two panels with 5.5" and 8" displays and at least a 5,500 mAh battery. Like other foldable phones, the Duo can show multiple apps side by side like a tablet.
Developers Have More Work
In order to take advantage of a larger screen, app developers have to make modifications. The extra real estate enables the display of more windows, and that means additional programming. See
foldable phone and
iPhone versions.