Apple’s iPhone Duo Brings Apple Pencil Support to Both Foldable Displays

The iPhone Duo’s 7.6-inch folding display is intended to make Apple’s first foldable more than a larger phone, and Apple Pencil support could be central to that pitch. Apple says the separately sold USB-C Apple Pencil will work on both the handset’s exterior display and its unfolded inner screen when support arrives later this year.

That gives the Duo a precision-input option for handwritten notes, sketches, and document annotation on its larger screen. Combined with iOS 27 multitasking, the device can take on some of the practical roles of a compact tablet without requiring users to carry a separate slate. The Pencil remains optional rather than a requirement for navigating the interface, which continues to rely on touch controls.

A productivity advantage over the latest Galaxy Z Fold

The feature also creates a notable contrast with Samsung’s current book-style foldable strategy. Samsung introduced S Pen support with the Galaxy Z Fold3 and retained it through the Galaxy Z Fold6, but removed it with the thinner, lighter Galaxy Z Fold7. The Galaxy Z Fold8 likewise does not support the S Pen.

Samsung’s decision reflects the hardware trade-off involved: the layer needed to detect stylus input takes up space. The iPhone Duo is thicker than the Galaxy Z Fold8, suggesting Apple accepted some added bulk to include Apple Pencil functionality. Samsung has considered restoring S Pen support to its foldables, but Fold8 arrived without it.

A stylus changes role on a larger canvas

Apple’s embrace of Pencil support on an iPhone-form-factor device is a meaningful shift from the original iPhone era, when Steve Jobs argued against styluses as a primary way to operate phones. The use case is different here: the Pencil is not a substitute for touch navigation, but an accessory for tasks where finer control matters, particularly once the Duo opens into a tablet-like workspace.

Apple has positioned the iPhone Duo as a niche device, with European pricing starting at €2,299. Preorders are scheduled to begin September 12, with deliveries beginning September 18. U.S. pricing and availability have not been confirmed in the available information. For users who want a foldable that can double as a compact note-taking and annotation device, Pencil support may be one of the Duo’s clearest differentiators; its final value will depend on how well that capability fits into Apple’s multitasking experience.

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