iPhone Duo vs iPhone 18 Pro: Here’s every key difference

Apple has introduced two new flagship iPhones this fall: the iPhone Duo and the iPhone 18 Pro. Both models have distinct form factors, features, and pricing. The iPhone Duo is a foldable device, while the iPhone 18 Pro follows a traditional iPhone design.

The most obvious difference is the form factor. The iPhone Duo offers a foldable design, providing a unique combination of an iPhone and iPad in one device. This means you get two displays with different shapes and sizes, which might require some adjustment for new users. Meanwhile, the iPhone 18 Pro offers a traditional iPhone experience with two size options: 6.3 inches and 6.9 inches (Pro Max model).

In terms of camera capabilities, the iPhone 18 Pro takes the lead. It features a new 48MP Main camera with variable aperture, allowing for superior image quality compared to the iPhone Duo. The iPhone Duo, however, lacks this feature and therefore has a less advanced main camera.

Software-wise, the iPhone 18 Pro boasts some exclusive features, including ProRes video recording up to 4K at 60 fps with external recording, the "studio-quality four-mic array," Spatial video recording at 1080p at 30 fps, Spatial photos, ProRes RAW, Genlock, and more. On the other hand, the iPhone Duo leverages its dual-display setup to provide multitasking advantages such as using apps in Split View and having unique landscape views.

Authentication methods differ between the two models, with the iPhone Duo employing Touch ID and the iPhone 18 Pro utilizing Face ID. The iPhone Duo does not have an Action button, but it does offer Camera Control. Additionally, the iPhone Duo supports Apple Pencil (USB-C model) later this year, giving it an edge over the iPhone 18 Pro.

Design-wise, the iPhone 18 Pro features an aluminum unibody design, while the iPhone Duo utilizes titanium. In terms of colors, the iPhone 18 Pro offers four options - Burgundy, Glacier, Black, and Silver. The iPhone Duo, however, comes in two colors: Star White and Night Sky.

Finally, pricing plays a significant role in the decision-making process. The iPhone 18 Pro has been available for nearly a month and started at a lower price point compared to the iPhone Duo. However, the latter's pre-orders just went live, but shipping estimates are already delayed into 2027. If you need a new iPhone sooner, the iPhone 18 Pro is the more practical choice.