Apple has officially introduced the iPhone Duo, its first foldable iPhone. The company announced the device on September 9, 2026. It brings a new foldable design with two displays and upgraded hardware. The iPhone Duo opens to reveal a 7.6-inch inner display. Apple says it is the largest display ever included on an iPhone. The screen uses Super Retina XDR technology and supports ProMotion and Always On features.
When folded, the phone has a 5.4-inch outer display. Apple says this screen offers 90 percent of the screen area of the iPhone 18 Pro. Both displays use the same aspect ratio for a consistent viewing experience.
iPhone Duo brings a new foldable design
Apple designed the device around portability and durability. The phone uses grade 5 titanium with a polished finish. It also includes a precision hinge with more than 100 components. The inner display uses a nano-texture finish. This helps reduce glare and reflections. Apple also designed the display to reduce the visibility of the fold. The device has an IP68 rating for splash, water, and dust resistance. Ceramic Shield protects the back. Ceramic Shield 2 protects the outer display and offers improved scratch resistance.
A20 Pro chip powers the new iPhone
The iPhone Duo runs on Apple’s new A20 Pro chip. The chip is also used in the iPhone 18 Pro models. Apple says it provides up to 35 percent better sustained performance than the iPhone 17 Pro. The phone includes a custom vapor chamber for thermal management. It also uses a dual-battery design. Apple says the device can provide up to 31 hours of video playback on the inner display. Fast charging can reach 50 percent in around 20 minutes. Wireless charging can reach the same level in around 30 minutes with compatible chargers.
Advanced camera features
The phone includes a 48MP Fusion Main camera. It supports up to 48MP photos and includes an optical-quality 2x Telephoto option. A 48MP Fusion Ultra Wide camera is also included. The camera system supports macro photography and wide-angle shots. The foldable design adds several new camera features. Users can preview photos on the outer display while using the rear camera. Duo Preview helps subjects check framing before a shot. The device also supports 4K video recording at 120 frames per second in Dolby Vision.
iOS 27 adds foldable features
Apple has adapted iOS 27 for the new device. The operating system adjusts content when users open or close the phone. A new Split View feature allows two apps to appear side by side. Users can also open two windows from the same app. This can help with multitasking and comparison tasks. The phone also supports Apple Intelligence and the new Siri AI. Siri can use personal context and onscreen information to help users complete tasks.
Price and availability
The iPhone Duo starts at $1,999 in the United States. It comes with 256GB, 512GB, 1TB, and 2TB storage options. The device will be available in Star White and Night Sky. Pre-orders begin on October 16, 2026. Availability starts on October 23 in more than 70 countries and regions.
Apple will also offer a two-part case and a Folio accessory with an integrated kickstand.
Read more about the latest iPhone news, Apple updates, new models, and smartphone launches.