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Apple’s folding phone is here and it’s called the iPhone Duo
The company has gone for the “passport” style form factor.
AppleApple has announced its long-awaited take on the folding smartphone form-factor, and it’s called the iPhone Duo*. It features a “passport” style design, which is relatively short and wide, giving the interior screen an aspect ratio that’s better for watching video, viewing photos, and running apps side-by-side.
Like the iPhone Air, Apple says it’s managed to fit everything it needs to into the phone by putting “critical components” in the camera plateau. Of course, the protrusion also houses the Duo’s camera system, which, appropriately, features two cameras. The main camera features a 26mm equiv. lens and an F1.6 aperture – no adjustable aperture here – as well as a 48MP stabilized sensor. While the company doesn’t typically share sensor size info, the specs are an exact match for the iPhone Air’s Type 1/1.56 (48mm²) main camera, which would make it a substantial step down from the larger sensor used in the Pro phones.
Apple also says it’s using the same 48MP ultra-wide camera as the iPhone 18 Pro, which is almost certainly the same model found in the iPhone 17 Pro, featuring a Type 1/2.55 (23.5mm²) sensor.
AppleLike Google before it, Apple is using the folding form factor to enhance the camera experience. It has a mode that lets you halfway fold the phone, so it will sit up on a surface with the cameras pointing outwards. The phone will then analyze the scene, taking pictures when it recognizes that everyone’s posing. The company says this makes it easier to take group shots and selfies without having to worry about a timer. There’s also a mode that will play cartoons on the front screen, aimed to make kids smile as you’re taking pictures of them.
Apple says durability was a big focus for the phone, and that the inner folding display is “designed to withstand the wear of everyday use.” Its frame is made from titanium, with the back glass getting Apple’s Ceramic Shield coating that makes it relatively resistant to shattering from drops. The glass covering the outer 5.4″ display uses the scratch-resistant Ceramic Shield 2 coating. The phone has an IP68 water and dust resistance rating, a rarity among folding phones (though Google’s Pixel Fold series has had it since last year).
According to Apple, the Duo has the “largest display for an iPhone” ever, with its interior screen measuring 7.6″ It features a “nano-texture” surface, similar to what Apple’s been providing on its iPads and Macs, that Apple says will minimize the risk of scratches (a common concern with foldables, which typically have a plastic screen protector that can be marked with a fingernail), and the visibility of the crease. Both of the phones’ screens have a 1:1.4 aspect ratio, and are capable of reaching 3000 nits peak brightness outdoors, and 1600 nits when viewing HDR content. Support for using them with the USB-C version of the Apple Pencil stylus will be coming in a later firmware update.
AppleThe phone does away with the FaceID authentication system that’s been ubiquitous on Apple’s phones for the past few years. The phone instead features a fingerprint reader integrated into the power button. The phone also foregoes the customizable “Action” button, but keeps the touch-sensitive “Camera Control” button, which lets you launch the camera and control various settings, like zoom. However, the camera app doesn’t feature the manual control mode debuted on the iPhone 18 Pro, nor does it have the Reference Image content authenticity mode, ProRes Raw recording, Apple Log 2, and a host of other video features that Apple reserves for its pro phones.
The iPhone Duo uses the same A20 Pro system on a chip as the iPhone 18 Pro, which Apple says will provide an up to 35% performance uplift compared to the standard iPhone 17 Pro. It also features Apple’s new, in-house “C2” chip for cellular and wireless connectivity. To that matter, the phone is e-SIM only, world wide; that’s been the case for the company’s US models for a while, but international models have typically come with a slot. However, Apple says it needed as much room for the battery as possible.
AppleThankfully, the phone retains Apple’s MagSafe wireless charging system, which it can use to charge at up to 25W. It also has a 10Gbps USB-C port on the bottom. (Though Apple says you can use the phone in any orientation, so who’s to say it’s not the top or the side?) The compnay claims the phone has “all day battery,” though per usual doesn’t provide specific capacity figures. It does, however, say it can do 31 hours of video playback with the inner screen, and 44 hours with the outer screen, putting it a touch behind the 18 Pro Max, which can do 45 hours.
Apple says the iPhone Duo is its thinnest phone ever when unfolded, coming in at just 5.2mm thick. Of course, it takes up a bit more room when folded, at 11.3mm. It’s also relatively hefty at 254g (~9oz).
As is often the case, Apple’s first crack at the form factor is launching into a relatively mature market. Samsung is up to its eighth generation of foldables, which first debuted in 2019. Earlier this year, the company announced the Galaxy Z Fold 8 Ultra, which features a triple-camera setup, alongside the dual-camera Galaxy Z Fold 8, which features a “passport” form factor that’s a bit wider and substantially shorter. Likewise, Google recently announced its fourth foldable, the Pixel 11 Pro Fold, which features three cameras. Companies like Xiaomi and Oppo also have several options, and have experimented with exotic form factors, such as tri-folds.
AppleThe phone will be available in black and silver. It starts at $1999 for a model with 256GB of storage, and the company says pre-orders start on October 16th, with the phone becoming available on the 23rd.
* – Nerdy fact: Microsoft already used this name for a foldable in 2020.
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