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The Duo is the most capable iPhone Apple has ever made. It takes everything the Pro line does well and pushes it further, with a bigger display, a faster chip, a redesigned camera system and battery life that comfortably clears a full day. If you want the best iPhone available and you plan to keep it for years, this is the one to buy.
Three alternatives to consider:
iPhone 18 Pro Max - nearly all of the Duo experience for less, with the same Pro camera system
Galaxy Z Fold8 - a tablet sized screen that folds into your pocket, ideal for work on the move
Galaxy Z Flip8 - flagship power in the most compact body you can buy
A new tier above Pro. The iPhone Duo brings together Apple's largest and brightest display, its most powerful silicon and a camera system built for professional work, in a titanium body engineered to take everyday life in its stride. It is the iPhone for people who ask the most of their phone and want no compromises anywhere.
A grade 5 titanium frame with a refined matte finish, paired with Apple's toughest cover glass yet. The bezels are thinner than any iPhone before it, so the phone feels smaller in the hand than the screen size suggests. Every edge and button has been reworked for grip and balance, and it carries an IP68 rating for dust and water resistance.
A redesigned Pro camera system with a larger main sensor, an ultra wide and the longest telephoto reach Apple has shipped. Low light images hold far more detail, portraits pick up cleaner edges, and the whole system is tuned so colour stays consistent whichever lens you shoot on. Photographic Styles and full resolution ProRAW give you room to edit exactly how you want.
This is the iPhone film makers have been waiting for. ProRes, Dolby Vision HDR and Apple Log let you shoot to a professional pipeline straight from your pocket, with recording direct to external storage for long takes. Stabilisation has been rebuilt so handheld footage stays smooth while you move, and Cinematic mode now holds focus far more reliably on faces.
The largest Super Retina XDR display Apple has built, with higher peak brightness for outdoor use and a deeper always on mode that sips power. ProMotion keeps scrolling and gaming smooth at up to 120Hz, and the anti reflective coating makes a real difference in bright sun. Colour accuracy is good enough to grade on.
The fastest chip Apple has ever put in a phone, with a significantly faster neural engine for on device AI and a GPU built for console quality gaming. A new vapour cooling system keeps it running at full speed rather than throttling back, so long edits, big exports and extended play sessions hold their performance from start to finish.
The biggest battery ever fitted to an iPhone, with the most efficient chip Apple has made working alongside it. That combination delivers the longest battery life of any iPhone, comfortably past a full day of heavy use. Fast charging gets you back to most of a charge in around half an hour, and it supports MagSafe and Qi2 wireless charging.
The iPhone Duo comes in Night Sky and Star White, with 256GB, 512GB, 1TB and 2TB storage options.