Apple has dropped a cryptic teaser ahead of its much-awaited launch event, and the 14-second video has already sent the internet into speculation mode. The biggest question: is Apple finally preparing to reveal its first foldable iPhone?

Apple CEO John Ternus shared the short video on X on Wednesday ahead of the company's Surprise and Shine event. The clip reveals very little, showing a shifting hexagonal beam of light moving across what appears to be the curved edge of a device.

That single glimpse has been enough to trigger a wave of guesses about what Apple could unveil at the event.

Is Apple teasing a foldable iPhone?

The curved edge seen in the teaser has fuelled speculation that Apple could be hinting at its long-rumoured foldable iPhone.

Some observers have interpreted the curved shape as a possible glimpse of what has been described as a new foldable Ultra-style iPhone. Others have taken the teaser in completely different directions.

‘Could it be a new Vision Pro?’ ‘Is Apple finally preparing a new Apple mouse?’ ‘Or is the company about to surprise everyone with something as unexpected as an iFlashlight?’

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The guessing game has already begun, with the deliberately mysterious video giving Apple plenty of room to keep the actual product under wraps.

There is also speculation that the illuminated curved edge could point towards a variable aperture camera on the rumoured iPhone 18 Pro and iPhone 18 Pro Max. However, the teaser itself does not confirm what device or feature Apple is showing.

iPhone 18 launch: What could Apple's foldable be called?

While Apple has not confirmed a foldable iPhone in the material available, reports have offered several possible names for the company's first foldable.

iPhone Fold and iPhone Ultra have previously been suggested. A more recent report cited in the supplied material claims Apple may instead call the device iPhone Duo.

The name would fit the phone's reported two-part folding design and would distinguish it from Apple's existing iPhone naming system.

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If the reports are accurate, the foldable could mark a major expansion of the iPhone range, although Apple has yet to officially confirm the product or its name.

Apple Pencil support could make the foldable different

Another reported detail is Apple Pencil support.

According to the report, the larger internal display of the alleged iPhone Duo could make stylus input more useful than it has been on conventional iPhones.

It is still unclear whether the foldable would work with Apple's existing Pencil models or whether Apple could introduce a dedicated version for the device.

That detail, if eventually confirmed, could give the foldable a more productivity-focused role within the iPhone lineup.

Two colours reportedly planned

The colour choices could also be relatively limited at launch.

According to Bloomberg's Mark Gurman, the alleged iPhone Duo could arrive in dark blue and white, with no black variant expected at launch.

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These details remain part of the rumour cycle until Apple officially announces the device.

When could Apple's foldable iPhone go on sale?

Even if the foldable iPhone appears at the launch event, buyers may have to wait before it reaches stores.

The supplied report suggests the iPhone Duo could go on sale as early as October, potentially after the main iPhone launch. The delay has been linked to the greater production complexity involved in making a foldable device.

For now, however, the biggest mystery remains what Apple is actually teasing.

The 14-second video does not show enough to identify the product with certainty. But with the iPhone 18 launch approaching, the curved device edge has given the foldable iPhone rumours a fresh boost and Apple appears happy to let the speculation run.