Apple’s new foldable iPhone Duo asks owners to choose a text and icon size during first-time setup, and then appears to make that choice permanent. The Display Zoom control that other iPhones keep in Settings is missing from the Duo once setup is finished, so owners cannot change Display Zoom afterward without erasing the phone. Anyone with a unit on order should pick the size with some care.
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MacRumors confirmed the omission on a device running iOS 27.2 and reported it on Nov. 2, with Apple yet to comment. The finding started with a single post from an owner, and it spread because the fix people expect to find does not exist.
Default, Medium or Large on the Appearance screen
During setup the Duo shows an Appearance screen with three options: Default, Medium and Large. On other models, the same choice can be revisited under Settings, Appearance, Display Zoom, which lets a person make text and icons larger or fit more on screen whenever their eyes or habits change. MacRumors’ Tim Hardwick reported that on the Duo the Display Zoom entry is absent from Settings afterward, which leaves the setup screen as the only place to decide.
A Reddit user in the r/iPhoneDuo community first noticed the gap the week before the report, after seeing a display model in a store that offered no zoom control. The post drew enough replies that MacRumors tested the setting itself. Its check on a Duo running iOS 27.2 found the same gap: the setup screen offers Default, Medium and Large, and Settings never lists Display Zoom as an option afterward, so a decision made in the first few minutes of ownership stays in place from then on.
The only reset Apple Support has offered
The one workaround on record comes from a MacRumors forum member who goes by earthdog. According to the account relayed in the article, an Apple Support senior advisor said nothing in the software allows the change after setup and that the only route is to “erase the device and set it up again.” For a phone with a $1,999 starting price, according to the iPhone Duo roundup, a full erase just to move from Medium to Large is a heavy price for a text-size preference.
The Duo is a big canvas to size for. It has a 5.4-inch outer display and a 7.6-inch inner display, the largest screen on any iPhone, and it shipped with iOS 27.1 on the October 23 launch date. A person who picks Default on the outer screen may find the same scale feels small on the inner one, or the other way around, and the setup screen offers no preview of how that will play out.
Timing makes the choice more urgent than it first looks. Apple announced the Duo on September 9, opened pre-orders on October 16, put it on sale in more than 70 countries on October 23 and expanded to 28 more countries on October 30, per the same roundup. Buyers in the newer markets are only now reaching the Appearance screen, and with delivery estimates stretching out for new orders, many more will meet it in the weeks ahead.
Intentional design or a bug awaiting a patch
Apple has not said whether the missing setting is deliberate. MacRumors contacted the company and says it will update the article if Apple responds. Forum readers split. One commenter claimed that the omission is intentional, meant to prevent accidental changes and to lock the setting for people with vision needs, and that the option would reach other iPhones later, but cited no source for it. Another called it a bug that would be fixed quickly. None of that is confirmed by Apple.
The company’s own documentation points the other way for iPhones in general. Apple’s support guide on display and text settings lists Display Zoom, text size and Bold Text together as adjustable options, which makes a one-time-only choice on the Duo an exception to the norm.
Launch problems already on Apple’s plate
The Duo has other early trouble competing for Apple’s attention. Reports of cracked inner displays along the hinge began on launch day, according to MacRumors’ October 23 coverage. In a statement to the site on October 26, Apple said it was aware of an issue impacting the inner display on a small number of units and told affected owners to contact AppleCare for a replacement. Whether a software gap such as Display Zoom ranks anywhere near that on the company’s list is unknown.
Until Apple weighs in, the practical advice is to treat the Appearance screen like a decision with no undo. Owners who are unsure can take Medium as a middle step, and anyone with a vision need should weigh the larger sizes carefully before finishing setup. A software update that restores the control would settle the matter, and the iPhone Duo roundup is where MacRumors collects any such change.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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