The iPhone Duo is a phone-and-tablet all-in-one, offering an extra screen at a much higher price than the iPhone 18 Pro. It also loses some key Pro features.
The iPhone 18 Pro is a much cheaper phone than the iPhone Duo, with better cameras to boot. But its single screen makes it far less versatile.
The iPhone Duo has been a long time coming, but is Apple’s first foldable a home run? And even if it is, do you even really need a dual-screen device?
Those are questions you might be asking yourself if you're in the market for a new iPhone — especially when the iPhone 18 Pro is also available, which only has one display but is a better device in various other ways.
So, to help you decide which of these two models is best for you, we’ve compared the iPhone Duo and iPhone 18 Pro across various categories, including price, display, and design. Happy decision-making!
Before we look in depth at the key elements of the iPhone Duo and iPhone 18 Pro, the specs table below provides an overview of their similarities and differences.
117.8 x 84.1 x 11.3mm (folded) / 117.8 x 164.6 x 5.2mm (unfolded)
7.6-inch Super Retina XDR OLED (foldable) / 5.4-inch Super Retina XDR OLED (cover)
The iPhone Duo and iPhone 18 Pro were both announced in September 2026. But while the iPhone 18 Pro shipped shortly after its announcement, the iPhone Duo wasn’t available until October 23. Both phones are available now, though, across much of the world.
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