09/18/2026
Last week Apple announced the iPhone Duo, its first foldable iPhone, and most of the coverage focused on the hinge and the $1,999 price. For anyone working in creative or advertising, the more interesting detail is the new shape of the screen.
Picture your best-performing vertical ad running on this thing. Open, the Duo is a 7.6-inch screen; closed, a 5.4-inch cover screen; and both sit at nearly the same proportions, far closer to a passport than to the long, narrow rectangle a phone has been for more than a decade. Your vertical no longer fills it once the phone folds shut, and widescreen leaves black bars across the open display.
The harder problem is that the Duo doesn’t have one shape; it has two, and the viewer decides which. Someone can start watching on the cover screen, open the phone halfway through, and watch the frame reshape around them. Every format conversation until now assumed the screen would hold still.
There’s also a fold running vertically through the center of the open display, exactly where a landscape composition tends to place its hero subject and logo. And Apple is positioning the open screen for two apps at once, which can drop full-screen creative into a half-width column.
So the early read that foldables bring horizontal back is probably wrong. The likelier outcome is that no single aspect ratio stays safe.
It’s fair to be skeptical that one phone changes anything. Samsung has sold foldables since 2019 without moving creative much. Hardware, though, has never been what changes a brief. Ad specs are.
The industry has been here before. Vertical existed for years before anyone built for it, and brands that waited for the platforms to mandate 9:16 spent years cropping widescreen into a shape it was never framed for. The ones that moved early didn’t spend more; they stopped assuming the frame was fixed.
None of this is expensive to really get ahead of. It means more room around the subject, text and logos off the outer edges and the center fold, and assets briefed to be reframed rather than rebuilt.
Formats change, platforms rewrite their specs, and now screens fold in half. Creative built to adapt survives all of it.