iPhone Duo specifications: A20 Pro chip, dual batteries and a 48MP Dual Fusion cameraThe inner display is built from ten ultra-thin layers with wide-angle OLEDs, and the FaceTime camera sits under the panel so nothing interrupts the surface. Durability is where Apple has done its longest engineering pitch.

Under the cover layer is a custom polymer the company says is up to 40 per cent stiffer than the industry norm, with high-strength glass above and below the folding panel and adhesives that let the layers slide against each other like pages, so the screen does not absorb the bend stress. A titanium plate runs along the base.

The hinge alone uses more than a hundred parts. The frame and hinge cover are grade 5 titanium, the front carries Ceramic Shield 2 with three times the scratch resistance of the last generation, and the phone is rated IP68.

Inside is the same A20 Pro as the iPhone 18 Pro, built on a 2nm process, with a 6-core CPU that is 20 per cent quicker than the A19 Pro, a 7-core GPU up 40 per cent, a dual 16-core Neural Engine and 50 per cent more memory bandwidth. A new display engine drives both screens at once.

Apple claims up to 35 per cent better sustained performance than the iPhone 17 Pro, helped by a vapour chamber bonded to the chip package. A battery sits on each side and the two behave as one, giving 31 hours of video on the inner display, 44 hours on the outer, and 24 hours of typical use when both get equal work.

Charging reaches 50 per cent in about 20 minutes over cable, or around 30 minutes on MagSafe. The N1 chip handles Wi-Fi 7, Bluetooth 6 and Thread, and Apple's own C2 modem does cellular.

Apple has also made a point of the phone holding whatever position you leave it in. It can be used partly folded, stood in a tent shape on its edges, or propped like a small laptop, and iOS reads the angle from sensors in each half and reorients accordingly.

Speakers sit at the top and bottom with tuning that accounts for how far apart they end up in each pose. There is no Action button on the Duo, a small loss for anyone who has got used to it on recent iPhones, though Camera Control survives and now launches the new Siri mode in the camera app.

The camera is the one place where the Duo is not the flagship. It uses a 48MP Dual Fusion system, a Fusion Main with sensor-shift stabilisation and a 2x optical-quality crop plus the same 48MP Fusion Ultra Wide as the iPhone 18 Pro.

There is no dedicated telephoto, no variable aperture and no Pro controls, all of which stay exclusive to the Pro models, and Apple Reference Image is missing too. What the Duo gets instead are tricks the shape allows.

Smart Take fires the shutter when it sees everyone posed, Duo Preview puts a live preview on the outer screen so your subject can frame themselves, Kid Cue plays animations to pull a child's eyes to the lens, and Duo FaceTime lets someone beside you join a call on the outer display. Video goes up to 4K at 120 fps in Dolby Vision, and Photographic Styles 3 adds texture and grain controls.

1, and the interface has been reworked rather than stretched. Lock Screen controls, the dock and app navigation shift to the side to free up vertical space, the Dynamic Island is redesigned to run vertically along the edge of either display, and opening the phone brings up two Home Screen pages with a scrolling Today View on the left.

Content reorients as the phone folds, turns or flips over. The multitasking is the part that will decide whether the extra screen earns its money.

Split View puts two apps side by side on an iPhone for the first time, you can open two windows of the same app, and app pairs can be saved and reopened together. StandBy now works on either display even when the phone is not charging, turning it into a clock, photo frame or widget panel in tent mode.

Netflix, Zoom and Slack have already adapted their apps, and Apple Pencil support arrives later this year on both screens. Beyond the assistant, Apple Intelligence brings the photo tools that arrived with iOS 27 across the range: Spatial Reframing to recompose a shot after the fact, Extend to widen it, and a Clean Up tool that can now remove larger objects.

Safari can watch a page and alert you when a price drops or something restocks, and Call Context surfaces a booking code from your mail when you ring an airline. Some of these lean on Apple's servers and carry daily usage limits.

Anyone moving over from Android can use the Move to iOS app to bring across photos, messages, contacts and calendars. Siri AI, the rebuilt assistant Apple showed at WWDC, is rolling out in beta with iOS 27 from Monday, September 14, in English first, with more languages in October.

Written by , ETMarkets.com|Oct 05, 2026, 07:36:31 AM IST1/8Downside AheadIn the Nifty200 pack, 7 stocks' closing prices crossed below their 200-day moving avera...