iPhone 18 Pro Review: Excellent Iterative Upgrade With Key Improvements

Apple's iPhone 18 Pro and iPhone 18 Pro Max have arrived, offering significant performance and camera upgrades that reviewers describe as excellent yet iterative. The devices, which went on sale Friday, September 18, 2026, feature a new A20 Pro chip, a variable aperture main camera, and improved battery life, but the consensus among reviewers is that they represent a meaningful but not revolutionary step forward from the iPhone 17 Pro. The A20 Pro chip, Apple's first 2nm smartphone processor, delivers substantial gains. Independent benchmarks show a 24-27% increase in CPU performance and a 40-48% boost in GPU performance compared to the A19 Pro in the iPhone 17 Pro. This is supported by testing from multiple sources, including Geekbench 7 results and 3DMark Wild Life Extreme Stress Tests. The chip is paired with a revamped vapor chamber cooling system that is three times larger than the previous generation, enabling sustained peak performance without overheating. A key camera innovation is the new variable aperture main camera, which allows settings of f/1.48, f/1.8, f/2.8, and f/4.0.