Apple plans to add Reachability to the iPhone Duo later this year, WIRED review says
Apple plans to bring Reachability, the one-handed accessibility feature, to the iPhone Duo in a software update later this year, according to a review of the foldable published by WIRED and relayed by MacRumors.
Reachability is a long-standing iPhone setting that lowers the top half of the interface toward the bottom of the screen when the user swipes down on the lower edge of the display. It exists to make large screens easier to operate with one thumb, and it is already available on other iPhone models. Its absence from Apple's first foldable has been a notable gap, given that the device pairs a 5.4-inch outer display with a 7.6-inch inner one.