Name: iPhone Duo
Brand: Apple

Apple has built its first folding phone, and the number that matters most is not the price or the size of the screen. It is a subtraction. To make the iPhone Duo close flat and open into a small tablet, Apple pulled out Face ID — the sensor array it has spent the better part of a decade telling customers was the future of how a phone should know its owner.

That is the trade the Duo really represents. Not a phone that does more, but a phone shaped differently, paid for by giving something up. The depth-sensing hardware behind Face ID needed room at the top of the phone, and a foldable has no room to spare. So Apple moved fingerprint reading into the side button, tucked the front camera under the inner display where it vanishes when idle, and asked buyers to accept the most expensive iPhone it has ever sold in exchange for the crease.

The iPhone Duo starts at $1,999 for 256GB and climbs past $3,000 at the top storage tier — roughly $700 more than the priciest conventional iPhone, the 18 Pro Max. Pre-orders open on 16 October, with the phone reaching shops on 23 October in more than seventy countries and the rest by the end of the month. It was shown on 9 September at an event Apple called “Surprise and shine,” the first keynote led by John Ternus since he became chief executive, who called it “the most transformational change to iPhone since the original.”

Opened, the Duo is the thinnest iPhone Apple has made. The inner screen is a 7.6-inch Super Retina XDR panel with a nano-texture, anti-glare finish; the outer screen measures 5.4 inches. Both run at ProMotion refresh rates, stay always on, and reach 3,000 nits. The frame is mirror-polished grade 5 titanium, the hinge is assembled from more than a hundred parts, and the whole device holds an IP68 water rating to six metres — no small feat for a phone with a seam down its middle. A new A20 Pro chip, built on a two-nanometer process, drives it.

What the money does not buy is a better camera than the cheaper iPhone. The Duo carries two 48-megapixel Fusion sensors, a capable pair, but it drops the dedicated long-range telephoto and the photographic range that the iPhone 18 Pro — hundreds of dollars less — still offers. The point was made plainly across the launch coverage: in several respects the standard Pro is the better-equipped phone. You are paying the premium for the form factor, not for the photography.

iPhone Duo held folded in one hand and unfolded in two hands, comparing the outer and inner display sizes — Photo: Apple

None of this is new ground for the industry, only for Apple. Samsung has sold book-style folding phones for years, and the Duo’s passport shape and side-by-side Split View — two apps at once, a first on iPhone — will feel familiar to anyone who has held a Galaxy Z Fold. Apple’s wager is not that it invented the folding phone but that it can make the one people keep: durable enough, thin enough, polished enough to justify arriving late and charging more.

The run-up read the shape of the sacrifice correctly — the leaks called both the near-$2,000 price and the death of Face ID months out. What no leak could convey is how it lands in the hand: an iPhone that no longer looks at your face to let you in, because the face-scanning hardware lost its argument with the hinge.

Tags: Apple, John Ternus, Face ID, foldable phones, iPhone Duo