The upcoming iPhone 17 Pro will utilize vapor chamber cooling technology to improve thermal performance, according to the Chinese leaker known as Instant Digital— as noted by MacRumors.
Vapor chamber cooling is a highly efficient thermal management technology that uses a sealed chamber filled with a working fluid to efficiently dissipate heat, especially in compact devices like smartphones and laptops.
Here’s how vapor chambers work, according to the thermal cooling company Radian: Unlike traditional heat sinks that rely on solid metal to conduct heat away from components, vapor chambers use a sealed chamber filled with a small amount of liquid that evaporates when heated.
When the device generates heat, the liquid (usually deionized water) inside the vapor chamber absorbs this heat and turns into vapor. The vapor then travels to the cooler end of the chamber, where it condenses back into liquid form and releases the heat. This process allows for efficient heat transfer and cooling of the device.