Apple introduced iPhone Duo, its first foldable iPhone, and John Ternus called it "the most transformational change to iPhone since the original." Duolingo readers watching Apple’s hardware push now have a date: pre-orders begin Friday, October 16, with availability starting Friday, October 23.
iPhone Duo in Cupertino, California
The device comes with a 7.6-inch inner display and a 5.4-inch outer display. The outer panel delivers 90 percent of the screen area of iPhone 18 Pro, while the inner screen is 50 percent larger than iPhone 18 Pro Max, which gives Apple a foldable layout without abandoning the proportions people already know.
Ternus said, "With an entirely new design and intuitive experiences, it shows what’s possible when hardware and software are engineered together and redefines what it means to use a foldable phone," and he added, "With the largest display ever on iPhone that still fits easily in your pocket, combined with the power of A20 Pro, iPhone Duo helps you stay more immersed and productive wherever you go, whether you’re enjoying content, multitasking across apps, or gaming."
Apple Intelligence and Siri AI
iPhone Duo runs on A20 Pro and uses iOS 27, with support for Apple Intelligence and Siri AI. Apple also says it uses Touch ID integrated into the side button and can be unlocked using an Apple Watch, a setup that keeps the phone usable without forcing a single unlock path.
The device comes in star white and night sky. Apple says the displays share the same aspect ratio, so content scales proportionally whether the phone is open or closed, which matters more than the folding mechanism itself because it limits the awkward jumps that can make foldables feel unfinished.
Apple Pencil and USB-C
Later this year, iPhone Duo will support Apple Pencil with USB-C. Buyers who want the phone at launch can place pre-orders on Friday, October 16, but the accessory support lands later, so the first wave of users will be buying before that part of the package arrives.
The remaining open question is pricing. Apple gave the display sizes, software stack, colors, and dates, but not the amount customers will pay when pre-orders open.
