Past the fold: the iPhone Duo versus the others

This week, Apple announced its first foldable: the iPhone Duo. It’s launching into a mature market with lots of competition, though it adopts the still relatively rare passport form factor. This means it’s designed to be short and wide, rather than tall and thin, a decision with relatively fundamental implications on the aspect ratio of its interior screen.

While there are plenty of options to compare it with, we’re choosing some of the more established competitors: the Samsung Galaxy Z Fold 8 series (both the passport style phone and the boxier Ultra variant) and the Google Pixel 11 Pro Fold. However, we will bring up some of the other foldables on the market at points where they’re relevant.

Cameras

One of the areas folding phones differ the most is in their camera layouts. Some opt for a three camera array, while others opt for two (usually, it’s the telephoto option that gets the axe). But different phones will make different compromises, so it’s up to you to decide what parts of the camera experience you value.

Comparing the options across the foldables from Apple, Samsung and Google to a standard slab phone – in this case the iPhone 18 Pro – a few things become clear. Both Apple and Samsung decided that there just wasn’t room in a passport-style phone for a three camera array (though, notably, Xiaomi managed it).

However, while the larger foldables offer telephoto cameras, they’re usually very compromised compared to what you’d typically get on a standard phone. Samsung’s “Ultra” foldable, the most expensive in this roundup, is also the only one that has what we’d consider to be a flagship-class main camera, though Motorola’s new Razr Fold has a comprable camera layout, albeit with an slightly worse ultrawide and substantially nicer telephoto.

The Galaxy Z Fold 8 Ultra still asks you to make a few camera compromises – it doesn’t have the longer telephoto included on its non-folding counterpart – but not as many as the rest of its peers.Samsung

As for how the iPhone Duo compares: it’s very similar to the Z Fold 8, and Apple has made a different trade-off than Google, opting for a better ultra-wide with no telephoto rather than relatively poor versions of both. But like the rest of the phones, it’s pretty much no contest between it and the Z Fold 8 Ultra, or the iPhone 18 Pro it launched alongside.

Screens

Apple

Of course, the main reason to get a folding phone is that they come close to the pocketability of a standard phone, will unfurling to give you a large display that lets you run multiple apps at once, or view videos and photos on a much larger canvas. (But while the iPhone Fold is IMAX-shaped, we suspect Christopher Nolan still wouldn’t approve of watching movies on one.)

Your choice of form factor will largely dictate what kind of screen you get, with the passport-style phones offering slightly smaller displays with aspect ratios more suited to viewing content, but not quite as ideal for running apps side-by-side (though both the iPhone Duo and Galaxy Z Fold 8 can). Meanwhile, the more traditional folding phones offer nearly square screens, which offer a multitasking experience that’s almost like having two standard phones next to each other.

Samsung

While you may need to compromise on cameras to get a folding phone, you’re not compromising on screen specs. All the phones in our roundup have incredibly bright displays – Apple and Samsung* offer 3000 nits peak brightness on bother inner and outer screens, while Google ratchets that up to 3600 – with variable refresh rates that go from 1 to 120Hz.

The one place Apple has thought different is in the finish of its inner display; it has a matte “nano-texture” coating, where its competitors have glossy displays. Apple says this does a better job of hiding the crease in the middle – though it’s barely noticeable on the Samsungs either, according to most reviewers – and makes it less prone to scratches. We’ll see what happens when JerryRigEverything does his durability tests on it, though.

Size and Weight

There’s no getting around it: the iPhone Duo is hefty, especially given its size. Despite Apple’s use of titanium in its construction – typically a material that offers incredible strength for its size – it winds up being substantially heavier than even the larger Galaxy Z Fold 8 Ultra and Google Pixel 11 Pro Fold.

To us, this comparison illustrates Samsung’s experience as the company that’s been making foldables the longest. Its models are substantially thinner and lighter than their Apple and Google counterparts, while having roughly similar battery capacities. Of course, Apple is known to let its devices be a bit heavier to give them a premium feel, but it’s up to you whether the feel in your hand is worth the heft in the pocket.

The rest of the experience

Each brand, will, of course, have its own take on what the foldable experience should be like. These range from macro-level decisions, like how the transition from folded to unfolded should work and how multitasking is handled, to smaller quality-of-life features like Google and Apple’s inclusion of camera features made to make kids smile as you’re taking their picture, and automatically capture group photos when you have your phone set up on a flat surface.

For years, the Pixel Fold has used its form factor to augment the photography experience.Google

While we won’t know the full scope of those usability differences until all the phones are available, there are a few things we can glean from what we know so far. While all the phones can be stood up on a table in the a-frame-like tent mode for watching video, the Galaxy Z Fold 8’s hinge design means it can’t be used half-unfolded (in a way that makes the phone sort of like a laptop). This is an ability the Ultra version, as well as the Pixel and iPhone, have.

While none of the selfie cameras on the inner screens will be great – they’re designed mostly for video calls – Apple goes the extra step of hiding its one under the display when it’s not in use, so you can get a truly full-screen experience when watching video, without the hole-punch you’ll get in the Galaxies and Pixel. Ironically, this was something Samsung used to do with its foldables, but has dropped in recent years.

The iPhone Duo and Google Pixel 11 Pro Fold both offer dust and water ingress protection that’s equivalent to a standard cell phone (which is important given their oh-so-complex hinges and display mechanisms), with an IP68 rating. The Samsung models fall a bit short on the dust protection, only boasting IP48.

* – It’s also no secret that Samsung, innovator in the foldable space, provides the panel for Apple’s foldable; no wonder it has similar performance.