iPhone 18 Pro packs 2nm A20 Pro, 40% higher power and major thermal upgrades

Apple has unveiled the iPhone 18 Pro and iPhone 18 Pro Max, bringing major upgrades to the cameras, processor, battery system, and display experience. The new Pro models also introduce a redesigned thermal architecture aimed at keeping their performance high during demanding workloads. The phones feature Apple’s new A20 Pro chip, a 48MP Fusion Main camera with variable aperture, and a next-generation vapor chamber. The iPhone 18 Pro Max also gets Apple’s largest battery-life increase yet. Preorders open September 12, with both models reaching stores on September 18. Buyers can choose from black, silver, glacier, and the new burgundy finish. Camera gets major control Apple has added variable aperture to the 48MP Fusion Main camera for the first time. A six-blade mechanism can adjust between four aperture settings. The system can automatically respond to lighting and depth-of-field requirements. Users can also control the aperture manually through the Camera app. A new imaging pipeline aims to improve detail and low-light photography. Apple has also expanded its Photographic Styles with additional texture and grain controls. Video creators get several upgrades as well. Cinematic effects can now be applied after recording at up to 60 frames per second. The phones can also capture 4K Dolby Vision HDR footage in Time-lapse mode. New Audio Mix algorithms further improve voice isolation and music handling. A20 Pro gets serious cooling Under the hood, A20 Pro uses a 2-nanometer manufacturing process and brings substantially more processing capacity. Apple says the chip delivers 50% more memory bandwidth than A19 Pro. The seven-core GPU can reach 40% higher performance than its predecessor. A new Dual 16-core Neural Engine also doubles the chip’s AI processing capacity. That performance creates another engineering challenge: heat. Apple has redesigned the thermal system to help A20 Pro sustain higher workloads for longer. The new vapor chamber has three times the surface area of the previous generation. Custom chip packaging also places the silicon beside the memory. That configuration allows A20 Pro to connect directly to the vapor chamber. Apple says the redesign enables up to 40% higher sustained performance compared with the iPhone 17 Pro. Bigger battery Apple has paired the performance upgrades with new battery designs. The eSIM-only iPhone 18 Pro can provide up to 36 hours of video playback. The Pro Max pushes that figure to 45 hours. Apple also says five minutes of wired charging can provide roughly seven hours of video playback on the larger model. Both phones ship with iOS 27 and the next generation of Apple Intelligence. Siri AI arrives in beta, adding personal-context awareness and onscreen actions. The new software can work across messages, emails, and photos to help users find information. Apple also uses on-device processing and Private Cloud Compute for its intelligence features. The iPhone 18 Pro lineup therefore combines a faster processor with a larger thermal system and expanded camera controls. The result is a flagship designed to sustain heavier workloads while extending what users can do with the phone. Get the latest in engineering, tech, space & science - delivered daily to your inbox.Aamir is a seasoned tech journalist with experience at Exhibit Magazine, Republic World, and PR Newswire. With a deep love for all things tech and science, he has spent years decoding the latest innovations and exploring how they shape industries, lifestyles, and the future of humanity.