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iPhone 18 Pro Brings a Variable Aperture Camera, a 2nm Chip and a Fix for Overheating

Apple's iPhone 18 Pro is an iterative update with one genuinely new idea: giving photographers back the controls. The flagship feature of the 48-megapixel main camera is a variable aperture that adjusts to the scene's light, and, unusually for Apple, users can override it, setting aperture and shutter speed manually instead of relying entirely on the company's computational photography.

TechnologyBy A. Brooks5h ago3 min read

Last updated: September 11, 2026, 7:44 PM

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An iPhone Pro. Apple's new iPhone 18 Pro adds a variable aperture camera, the first 2nm iPhone chip and a new burgundy color, starting at $1,199. ( ubeyonroad via Unsplash)

An iPhone Pro. Apple's new iPhone 18 Pro adds a variable aperture camera, the first 2nm iPhone chip and a new burgundy color, starting at $1,199. ( ubeyonroad via Unsplash)

The phone starts at $1,199, with the Pro Max at $1,299 and storage configurable up to 2 terabytes. Preorders open September 12 and the phone ships September 18. The new color this year is burgundy. The announcement capped Apple's busiest fall in years, the launch season previewed for months, and shared the stage with the $1,999 folding iPhone Duo, the debut Samsung greeted with "Welcome to Foldables" billboards.

The First 2nm iPhone Chip

The A20 Pro is the first iPhone chip built on a 2-nanometer process. Its 6-core CPU pairs two "super-cores" up to 20 percent faster with four efficiency cores, while the 7-core GPU delivers up to 40 percent better performance with increased bandwidth. The Neural Engine has been redesigned too; Apple describes it as essentially two Neural Engines on one chip, muscle aimed squarely at Apple Intelligence.

Apple spent a large chunk of the presentation on AI, arguing the iPhone is the natural home for it because it holds the user's context, calendar, habits, messages, while pitching privacy as the differentiator. Siri AI, the LLM-driven overhaul of the assistant announced earlier, arrives in October.

Smaller Body, Cooler Phone

The 18 Pro and Pro Max are slightly smaller than their predecessors but promise similar battery life, helped by a new battery usage model built on data about how people actually use their phones. The Dynamic Island shrinks a little as well. And Apple emphasized a new thermal management system to curb overheating, the kind that kicks in on a hot day in a car without air conditioning, a quiet admission of one of the iPhone's most common real-world complaints.

The pattern of the release is consistent: no reinvention, but sharper control for users, in the camera, in the settings, in the heat. In a technology cycle dominated by the folding Duo's debut, the 18 Pro is the safe bet of Apple's lineup, and the one most people will actually buy.

Frequently Asked Questions

What's new in the iPhone 18 Pro camera?
A variable aperture on the 48-megapixel main camera that adapts to scene lighting, plus manual controls: users can set aperture and shutter speed themselves.
What is the A20 Pro chip?
Apple's first 2-nanometer iPhone chip, with a 6-core CPU (two super-cores up to 20 percent faster), a 7-core GPU up to 40 percent faster, and a redesigned Neural Engine that Apple describes as two in one.
How much does the iPhone 18 Pro cost and when does it ship?
$1,199 for the Pro and $1,299 for the Pro Max, with up to 2TB of storage. Preorders open September 12; the phone ships September 18.
Does the iPhone 18 Pro fix overheating?
Apple says a new thermal management system reduces overheating in demanding situations, alongside a battery model that preserves battery life despite the slightly smaller body.
AB
A. Brooks

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A. Brooks is a journalist and editor with more than seven years of experience covering world news, science, technology, and entertainment. With a background in communications and media studies, Brooks specializes in translating complex topics into clear, engaging stories for a broad audience. Their work ranges from breaking news and explainers to in-depth features, with a focus on accuracy, context, and accessible storytelling.

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