iPhone 18 Pro vs. iPhone Duo: Why You Should Think Twice Before Buying Apple’s Foldable

Let’s break down the differences between Apple’s latest traditional phone and its first foldable. The iPhone 18 Pro starts at $1,199 for 256GB, with prices climbing to $1,399 for 512GB, $1,599 for 1TB, and $1,999 for 2TB. The Pro Max is a bit pricier, beginning at $1,299 for 256GB and going up to $2,499 for the 2TB version. Then there’s the iPhone Duo, which adds a $800 premium over the base 18 Pro, starting at $1,999 for 256GB and reaching $3,199 for 2TB. Yeah, these aren’t cheap, and I’m never shy about saying Apple’s prices are too high.

When it comes to design, the 18 Pro and Pro Max stick to the classic slab shape, with new colors like Burgundy, cherry bronze, and Glacier blue. They’re nearly the same size as before, with the Pro weighing 7.44 ounces and the Max a hefty 8.78 ounces. The iPhone Duo, though, is a whole different beast—it’s Apple’s first book-style foldable with a titanium hinge. It comes in Star White or Night Sky, and when closed, it’s compact like a passport, but open, it’s twice as wide. It wobbles a bit, which is a quirk of foldables, and it’s the heaviest at 8.96 ounces. Both types have IP68 resistance, Ceramic Shield, and MagSafe, so they’re built tough.

The displays are where things get interesting. The 18 Pro has a 6.3-inch OLED screen, while the Pro Max stretches to 6.9 inches, both with sharp 460ppi. The Duo has two screens: a 5.4-inch cover display and a 7.6-inch folding screen inside, with a nice anti-reflective finish. All three phones boast 120Hz refresh rates and super bright displays, but the slab phones avoid the crease issues that foldables might have. The Duo offers more flexibility for multitasking, though.

Performance is pretty much a tie for now. All three run on the A20 Pro chip, which beats Android competitors, with 12GB of RAM and similar cooling systems. They share the same wireless features like 5G, Thread, and satellite connectivity, though the Pro Max uses a different modem for some reason.

Battery life favors the Pro Max, which lasted over 34 hours in tests—impressive stuff. The 18 Pro managed about 24 hours, and the Duo splits its battery across the hinge, promising around 44 hours on the small screen but less on the main one. If battery is key, the slab phone wins.

Cameras are another win for the traditional models. The 18 Pro and Pro Max have triple 48MP lenses with variable aperture and telephoto, plus pro video features. The Duo only has dual 48MP cameras, missing the telephoto to keep it thin. For photography buffs, the Pros are the way to go.

Software is where the Duo shines. It runs a special iOS 27 with split-screen multitasking, Flex Mode, and Apple Pencil support on the inner screen. The slab phones offer the standard iOS experience, which is smooth but less innovative.

So, which one’s for you? Pick the 18 Pro if you want top cameras in a compact design under $1,200. Go for the Pro Max if battery life and a big screen matter most. Choose the Duo if you’re excited about foldables and want a pocket-sized tablet. The Pros are available now, while the Duo hits in October—so read up before deciding!