Apple's iPhone 18 Event: Top Features and Trade-offs

Apple's September 2026 iPhone launch event centered on the foldable iPhone Duo, alongside the iPhone 18 Pro and Pro Max, which feature a new mechanical variable-aperture camera. The event also marked John Ternus' debut as CEO, with increased hardware details and higher prices across the lineup. The iPhone 18 Pro and Pro Max's 48MP camera uses a six-bladed mechanical aperture with four settings (f1.48-f4), offering improved bokeh control but limited depth-of-field variability. The Duo reintroduces Touch ID, offers a nano-texture anti-reflective screen, and supports simultaneous front and rear camera feeds, though it lacks the Pro's mechanical aperture and has nonstandard aspect ratios. All three phones run on the new A20 Pro chip with a 2nm process and doubled Neural Engine cores for on-device AI. New features include iPhone Handoff for sharing a phone number across two devices, while the Watch Ultra 4 has improved sensors and Audio Intelligence for sound recognition. Concerns include always-on AI listening, privacy implications, and the Duo's awkward Apple Pencil support.