Making Sense of the iPhone Duo ⭐

Apple announced the iPhone Duo yesterday and though the name wasn't the only surprise, this foldable iPhone is mostly as expected. That's not a dig at Apple, which is well established as a follower that adds innovative new ideas when it finally does enter a new market.

But this time feels a bit different. Samsung and other Android handset makers have been selling folding phones for several years and have dramatically refined their designs while solving early technical issues tied to screen durability and quality. And it's not clear how Apple expands on those efforts. Instead of being something new and different--and, ideally, better in some ways--the iPhone Duo is just something new and different for those already in the Apple ecosystem. It's "just" a foldable iPhone.

But it's not just that, right?

Though Apple has expanded into services as a new revenue stream, the company's business model is the same as it's been since Steve Jobs returned in the late 1990s: Deliver such high quality products that its customers stop looking elsewhere and then sell them more. For a long time, the "more" was always new hardware, things that might be complementary to Apple's primary driver, the iPhone. Things like headphones and earbuds, speakers, smart watches, iPads, and Macs.

There are cynical and non-cynical ways to view this strategy. Many years ago, I wrote my Right Tool for the Job editorial as what we might now view as an argument against hybrid devices, noting that "one device that does everything is one device that does everything poorly." That's not why Apple has long sold different devices in multiple product categories per se, in fact, there is a lot of evidence that it held back its own products specifically to not undermine its strategy of selling multiple devices to each customer. For example, by not adding multi-touch capabilities to the Mac, a feature that would have greatly aided app developers, who need to use a Mac, create touch-capable iPhone (or iPad) apps. Or by giving iPads some of its fastest processors but not the software smarts that would make it more versatile than a Mac.

But if you know your recent Apple history, you know that something is changing. Last year, Apple took a major step toward solving the latter of those two examples with iPadOS 26, which suddenly positioned the iPad as not just a viable Mac or PC laptop replacement, but did so without compromising the primary, touch-first user experience customers expect from that device. And it's going to soon solve the first of those examples: Before the end of 2026, Apple will finally ship its first touch-capable Macs.

The iPhone Duo is absolutely the best example yet of this strategy change. I've written a lot about hybrid devices in recent years and have tested and owned multiple folding phones and PCs. And the central promise here has always been the same: A single device that can do the work of a second device so well that you no longer need that second...