iPhone Duo Split View is fixed 50/50 — not like iPad, MacRumors observes
MacRumors observes from Apple marketing materials that iPhone Duo side-by-side apps appear locked to a fixed 50/50 split — you seemingly cannot drag to resize like iPad Split View. Geometry (shared 1:1.4 aspect) is the likely reason. Pre-orders Oct 16; availability Oct 23; starts $1,999.
iPhone Duo can finally run two apps side by side — but buyers expecting iPad-style Split View should temper expectations: MacRumors (Tim Hardwick, Wednesday, September 23, 2026, ~5:53 a.m. PDT) observes that the divider looks fixed at 50/50. You apparently cannot drag to resize one pane larger than the other the way iPad has allowed since iOS 9.
This is an observation from Apple’s marketing materials and promo videos, not a formal Apple restriction announcement. Treat the fixed-split reading — and the geometry explanation below — as reported inference, not a confirmed system limitation until hands-on reviews land.
What MacRumors saw
Hardwick notes Apple’s Duo marketing talks up app pairs and side-by-side windows, yet does not mention resizing. On the 7.6-inch foldable inner display, two apps appear locked to an even split. That will feel limiting to anyone who regularly drags iPad Split View panes in landscape.
The practical upside remains: Duo is still the first iPhone that can keep Messages open beside Safari, open two windows of the same app, swap apps quickly, and save app pairs for later — in both landscape and portrait.
Why a fixed split is likely
MacRumors’ likely explanation tracks Apple’s own Newsroom geometry pitch: the inner and outer displays share a 1:1.4 aspect ratio, and each half of the inner canvas maps roughly to the outer screen’s shape. An even split puts the divider on the fold and gives each app a size developers already have to support. Dragging the boundary around would create awkward in-between sizes that may not map cleanly when content moves to the outer display — and would complicate iPhone app layouts.
One apparent exception in Apple’s promo videos: watching Apple TV content above another app in portrait, with the video kept in its proper aspect ratio while the lower app rises above the fold.
Buyer timing
iPhone Duo starts at $1,999. Pre-orders begin Friday, October 16, with availability Friday, October 23. For more on Duo’s design intent from Apple’s leadership, see our John Ternus Clique interview note. Software context around Duo’s launch window remains tied to the iOS 27.2 beta train while iOS 27.1 stays associated with Duo availability.
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Sources: MacRumors — Tim Hardwick (Sep 23, 2026, ~5:53 a.m. PDT); geometry/context: Apple Newsroom — iPhone Duo.