When Apple unveiled the iPhone Duo in September, it promised Apple Pencil support “later this year,” and most people read that as December. They read it wrong. According to reporting from 9to5Mac and MacRumors this week, stylus support arrives with iOS 27.2, which is expected to land on or around Monday, October 26, just three days after the Duo itself starts shipping.
Creative Strategies analyst Max Weinbach confirmed on X that Apple Pencil support is already working in the iOS 27.2 Release Candidate, which rolled out Monday. He tested it on his own iPhone Duo: drawing, annotating, and scrolling all work, on both the 7.6-inch inner display and the 5.4-inch outer cover screen, MacRumors reports.
This makes the Duo the first iPhone ever with native Apple Pencil support. Apple has shipped stylus support on iPads since 2015, but the iPhone line never got it, not even the Pro Max models that are bigger than some of the Duo’s display. The foldable’s large inner canvas is what finally tipped the scales.
Only one Pencil works, and it is the cheaper one
The Duo supports exactly one stylus: the Apple Pencil with USB-C. The fancier Pencil Pro and every older Pencil model are not compatible, 9to5Mac reports.
In a way this is good news. The USB-C Pencil is the budget option in the lineup, currently selling for $69 on Amazon, per 9to5Mac. It pairs and charges through a USB-C port hidden under a sliding cap rather than snapping on magnetically, which makes practical sense given the Duo has no flat magnetic surface to speak of.
The trade-offs are real, though. The USB-C Pencil has tilt sensitivity for basic sketching and note-taking, but no pressure sensitivity, no haptic feedback, no barrel roll, no squeeze gestures, and no Find My tracking, according to MacDailyNews. If you were hoping to do shaded illustration work on the Duo’s inner screen, try it in a store before buying one. For notes, markup, and document annotation, which is what most people actually do with a stylus, it is plenty.
Why the timing matters for day-one buyers
The Duo ships Friday, October 23, running iOS 27.1. At launch, the Pencil will not work at all. Anyone running the iOS 27.2 Release Candidate gets stylus support on day one; everyone else needs to update when 27.2 goes public, expected around October 26, and should gain Pencil access within a few days of unboxing.
That is still dramatically earlier than anyone expected. When Apple said “later this year,” the natural reading was December, in line with its usual pattern of shipping notable software updates late in the year. Instead, early adopters get the feature in week one. Apple’s own Duo specification page still footnotes Pencil support as “coming later this year” as of October 22, which suggests the company’s web team did not get the memo, or the marketing team did not expect the software team to move this fast.
Apple is betting against Samsung’s foldable playbook
The bigger story is strategic. Samsung dropped S Pen support from the Galaxy Z Fold 7 last year, explicitly to make the phone thinner and lighter. Apple is doing the opposite: adding stylus support to its first foldable, and pricing the Duo at $1,999 against Samsung’s productivity pitch.
It is a direct answer to the question hanging over every foldable: what is the big screen actually for? First reviews of the Duo praised the hardware but found apps not ready for the form factor. A stylus gives the inner display a job on day one: notes, PDF markup, sketching, and precise input in supported apps, no third-party developer required.
There is more software catching up behind it. Wired’s Julian Chokkattu reports Apple plans to bring reachability, the one-handed screen-shrinking gesture, to the Duo later this year. The foldable is clearly a platform Apple intends to grow into, not a finished statement.
What Duo buyers should do this week
If you secured a pre-order, and shipping slipped to 2027 in 30 minutes so you may not have, the practical checklist is short. Update to iOS 27.2 the moment it appears, which should be within days of your delivery. Check which Pencil you own before ordering anything: only the USB-C model works, and your iPad’s Pencil Pro will sit this one out. And if you are running the 27.2 beta program, you already have the feature, along with everything else in the release candidate build.
The $1,999 foldable was already the most expensive iPhone ever. Now it is also the first iPhone you can draw on. Samsung decided the stylus was not worth the thickness. Apple just bet the opposite, and within a week, Duo owners get to test who was right.
