Mark Gurman wrote on Sept. 13 that Apple’s first foldable iPhone, the iPhone
Duo, could help make foldable phones mainstream. He expects Apple to expand the
line over the next few years with a larger-screen iPhone Duo Max, a lower-spec
Duo SE and a vertically folding Duo mini. Gurman said Apple chose the name Duo
rather than the widely speculated Ultra partly because three-letter names fit a
product family and leave room for Max and SE suffixes; some Apple staff had
called the device Ultra. He projects foldables could account for more than half
of new phone sales within ten years as costs fall and use cases grow; foldables
currently make up about 2% of global smartphone shipments.