# iPhone 18 Pro Review: All About that Chip Source: https://www.youtube.com/watch?v=ohqxP8EEumo Recap page: https://rapidrecap.app/video/ohqxP8EEumo Generated: 2026-09-16T12:32:12.547+00:00 --- ## The Gist The iPhone 18 Pro is a subtle S year upgrade featuring a new A20 Pro chip built on a 2 nanometer node and the introduction of a variable aperture lens, making it an incremental release built on efficient engineering rather than sweeping physical design changes. ## Quick Overview The iPhone 18 Pro brings incremental hardware changes to Apple's flagship smartphone line, anchored by the remarkably efficient A20 Pro chip and a new variable aperture camera system. While the exterior design remains largely identical to previous generations, internal thermal improvements and granular pro photo controls significantly elevate the device's capability and battery endurance. **Key Points:** - The iPhone 18 Pro features the same three camera layout as the previous generation, consisting of a 48 megapixel primary camera, a 48 megapixel ultrawide camera, and a 48 megapixel 4x telephoto camera. - The main camera introduces a variable aperture lens with a maximum opening of f/1.48, allowing users to step down through stages like f/1.8, f/2.8, and f/4 for deeper depth of field. - The iPhone 18 Pro and Pro Max are powered by the new A20 Pro chip, which utilizes a 2 nanometer node architecture to deliver substantial multi core and GPU performance gains. - Battery life tests reveal the 18 Pro functions as an easy day and a half phone with a 4056 milliamp hour capacity, while the larger Pro Max houses a 5391 milliamp hour battery. - Wired charging speeds reach up to 54 watts, providing seven hours of video playback after just five minutes of charging. - The Dynamic Island shrinks slightly by relocating the infrared Face ID sensor to the top left corner behind the display. - Apple adds granular pro controls to the native camera app, including manual white balance, shutter speed limits, and a storage limit configuration for ProRes video. ![Screenshot at 06:48: The reveal of the new A20 Pro chip, representing the primary performance driver for the iPhone 18 Pro lineup.](https://ss.rapidrecap.app/screens/ohqxP8EEumo/00-06-48.jpg) **Context:** Apple continues its iterative release cycle for its flagship Pro smartphone line, following up previous designs with internal architectural revisions focused on thermal efficiency and enhanced pro creative tools. ## Detailed Analysis The iPhone 18 Pro is primarily defined by its internal engine and a few targeted camera refinements. The new A20 Pro chip, built on a 2 nanometer node, delivers massive gains in GPU and sustained performance while keeping thermal output manageable via a larger vapor chamber. The camera system retains the familiar triple 48 megapixel setup but adds a variable aperture to the main sensor, giving users manual control over depth of field and starburst light diffraction effects. Apple also overhauls the native camera app, finally introducing manual white balance and shutter speed limits to match third party apps. Combined with significantly faster charging speeds that peak at 54 watts and a slightly smaller Dynamic Island achieved by moving the Face ID sensor behind the display, the iPhone 18 Pro delivers a refined user experience without breaking new ground in physical design. ### The Camera The primary camera gets a major mechanical upgrade with a variable aperture lens while retaining the triple 48 megapixel sensor layout. - The main camera features a variable aperture that opens up to a maximum of f/1.48 and can step down to f/1.8, f/2.8, and f/4. - Stopping down the aperture creates a deeper plane of focus and sharper overall images, though the subtle differences are difficult to notice at first glance in everyday shooting. - The six aperture blades create distinct starburst shapes around point light sources at night when stopped down. - Automatic mode typically defaults to the brighter f/1.48 or f/1.8 apertures to maximize light intake in low light conditions. ![Screenshot at 01:27: Close up view of the three 48 megapixel camera lenses on the back of the iPhone 18 Pro.](https://ss.rapidrecap.app/screens/ohqxP8EEumo/00-01-27.jpg) ### The Camera App Apple upgrades the native camera app with professional level manual controls previously only found in third party applications. - Users can now adjust manual white balance, shutter speed, and file format directly within the stock camera interface. - A customizable control bar allows users to pin and order pro tools like exposure, styles, and manual focus. - IOS 27 adds a new setting to limit how much storage ProRes video captures can take up, preventing storage overflow. ![Screenshot at 05:37: The newly expanded pro control bar displayed inside the native camera app interface.](https://ss.rapidrecap.app/screens/ohqxP8EEumo/00-05-37.jpg) ### The Chip The A20 Pro chip brings architectural efficiency gains that significantly improve sustained performance and thermal management. - The A20 Pro separates the DRAM from the CPU and places a three times larger vapor chamber directly on the silicon for superior cooling. - Geekbench 7 benchmarks show a massive jump in GPU performance and multi core scores compared to the previous A19 Pro generation. - The 2 nanometer node architecture proves that Moore's Law is still active by shrinking transistors to atomic scales. - Siri and on device AI tasks run noticeably faster due to the doubled neural engine capabilities. ![Screenshot at 07:16: Geekbench 7 benchmark comparison highlighting the performance gains of the A20 Pro chip.](https://ss.rapidrecap.app/screens/ohqxP8EEumo/00-07-16.jpg) ### The Battery Battery life sees impressive gains driven entirely by silicon efficiency rather than physical battery expansion. - The smaller iPhone 18 Pro houses a 4056 milliamp hour battery, while the Pro Max packs a 5391 milliamp hour capacity. - The 18 Pro comfortably delivers a day and a half of heavy usage without requiring an overnight charge. - Wired charging reaches a peak of 54 watts, delivering seven hours of video playback after a five minute charge on a 67 watt charger. ![Screenshot at 12:11: A USB power meter showing the iPhone 18 Pro pulling over 51 watts during fast charging.](https://ss.rapidrecap.app/screens/ohqxP8EEumo/00-12-11.jpg)