Apple Built an Apple Pencil for the Foldable iPhone. It Probably Isn't Coming.

The prototype described in Gurman's Power On newsletter was not a rebadged iPad accessory. It was "stubbier" than the Pencils Apple sells today, shortened to match the smaller height of the folding iPhone that Bloomberg reports is referred to internally as iPhone Ultra. The magnetic attachment worked the same way it does on an iPad: snap it to the body, and it holds in place while charging wirelessly.

Two problems surfaced in testing, according to Gurman. The first is ergonomic. On an iPad held in landscape, the Pencil parks along the top edge, out of the way of both hands. On a phone-sized device, the same magnetic strip sits along a side edge — precisely where fingers go. The second problem is more serious: the stylus risked leaving what Gurman calls "unsightly marks" on the inner display.

Why a folding screen and a hard tip do not mix

That second point is worth unpacking, because it is not a manufacturing defect Apple could simply engineer away before launch. A conventional phone screen is covered in chemically strengthened glass. A folding screen cannot be, because glass that thin and that flexible does not survive a hinge. Foldables instead use ultra-thin glass or plastic laminates with a soft polymer top layer, which is why a fingernail pressed hard enough leaves a dimple on a folding panel and none at all on a flat one.

Samsung has spent five years living with this constraint. When the Galaxy Z Fold 3 introduced stylus support in 2021, Samsung did not ship the standard S Pen with it. It shipped a separate S Pen Fold Edition with a softer tip mounted on a spring-loaded mechanism that retracts under pressure, and warned owners that using an ordinary S Pen on the inner screen could damage it. Even with that engineering, reviewers documented that a hard press could still mark the panel. Samsung eventually dropped S Pen support from the Galaxy Z Fold 7 altogether.

So Apple was not discovering a novel problem. It was arriving at the same conclusion its main foldable competitor reached the long way around — and choosing not to ship the accessory rather than ship a compromised one.

The sentence from 2007 that still governs the product

There is also a piece of company history hanging over this. Introducing the original iPhone in January 2007, Steve Jobs held up a stylus and dismissed it: nobody wants one, you have to get it out, put it away, and you lose it. The line has been quoted at Apple ever since.

Apple resolved that tension once already. The Apple Pencil arrived in 2015 alongside the first iPad Pro, and Apple has been careful ever since to scope it to the iPad — a drawing and note-taking surface, not a phone. Ten years and four models later, including the Apple Pencil Pro in 2024, the Pencil has never been offered for an iPhone. Gurman's reading is that Apple is reluctant to break that boundary now.

The counter-argument is easy to make. A folding iPhone opens into something close to a small iPad, and the software Apple already ships — Notes, Markup, Freeform, PDF annotation — is built for a stylus. Whatever Apple decides there, the hardware constraint is the harder one.

What this changes for September 9

Practically, nothing about the event itself. Apple has confirmed a keynote at Apple Park on Wednesday, September 9 at 10 a.m. Pacific, under the tagline "Surprise and Shine," and the foldable is expected there. A shelved accessory does not alter that lineup — and as a recent survey suggested, most American respondents are not waiting for a folding iPhone in the first place.

What it does change is the expectation you should carry into the keynote. If you were planning to annotate documents on a folding iPhone with a pencil in hand, plan around your finger instead. Apple has not announced stylus support for any iPhone, and a device can support a stylus in software long before an accessory exists to use it — or never.

This prototype surfaced only because Bloomberg reported it eight days before the keynote. The absence of an Apple Pencil for iPhone Ultra is not a gap in the product; on the evidence Gurman describes, it is a decision.

What to watch instead

Two things are worth tracking on September 9 if the folding iPhone interests you. First, how Apple describes the inner screen's durability: the vocabulary it uses about the crease, the coating and the hinge will indicate how confident it is in the panel. Second, whether iPadOS-style multitasking features appear on the unfolded display, which is where a stylus would eventually matter.

Apple has not commented on the prototype, and Gurman does not report a formal cancellation — only that it is unlikely to appear next month. That leaves the door open for a later generation, once the display underneath it can take the pressure.