MacRumors tells many buyers an iPhone 18 Pro beats the $1,999 iPhone Duo

Start with the test MacRumors proposes: a reference document open beside the email you are writing ^[9]. That is Split View, and it is what the Duo's 7.6-inch folding display and two-apps-side-by-side multitasking are priced for ^[7]. For someone who does it daily, the $700 premium over the Pro Max buys a screen they will use ^[7].

MacRumors counts the appeal of a radically new kind of iPhone among the Duo's strongest reasons for consideration ^[14]. The tasks it lists are plainer: reading, documents, photos, video and two apps side by side ^[9]. It adds propping the phone up for a call and giving someone a live preview while you photograph them ^[13].

The Pro models carry the camera. MacRumors says the variable aperture adjusts automatically in everyday shooting, and the dedicated Telephoto camera gives more flexibility for distant subjects ^[2]. All three phones share Camera Control and a 48MP Fusion Ultra Wide camera ^[12], so the difference sits in the rest of the camera system. Face ID is the loss the guide leaves unexplained: it lists Face ID among the Pro models' features, and its prose does not say how the Duo unlocks ^[1].

We'd sort the decision on two questions. The first is whether you would unfold the phone for a named task on most days. The second is whether you rely on Telephoto reach or the Pro capture formats.

- Unfold daily, no camera need: the Duo. - Unfold daily, camera need: the Pro Max. It costs $700 less than the Duo ^[7], and the guide says the Duo's camera tools and formats are much more limited ^[3]. The tradeoff is losing a second app on screen. - Rarely unfold, camera need: a Pro model, chosen by size. - Rarely unfold, no camera need: a Pro model again. What remains for the Duo in this corner is the prop-up convenience and the novelty of Apple's first foldable ^[13].