Apple will let customers set up their iPhone Duo pre-order starting October 12, four days before orders open on October 16.

Apple's first foldable iPhone, known as the iPhone Duo, debuted on September 9, alongside the iPhone 18 Pro and iPhone 18 Pro Max. While the latter two are already available for purchase, those looking to get an iPhone Duo will have to wait until mid-October 2026.

Pre-orders for iPhone Duo start at 8 AM ET on Friday, October 16, but Apple says its customers can "get ready" for pre-orders starting October 12.

In essence, it will be possible to customize your iPhone Duo even before pre-orders officially open. From October 12 through October 15, you can select your desired accessories, color, carrier, storage option, shipping address, billing address, AppleCare+ plan, and payment method.

Preparing in advance will let you pre-order the iPhone Duo much more quickly, and it might help you acquire the device on its scheduled release day. Given the rumors around limited supply chain output, you'll want every advantage you can get when ordering the iPhone Duo.

Apple says iPhone Duo availability begins on October 23.