The iPhone 13, with its A15 Bionic chip, will likely be an already powerful product. But there is another killer feature that could be added to its repertoire.

According to leading Apple analyst Ming-Chi Kuo (via AppleInsider), Apple is "actively testing" a smaller version of this technology, which is already found in gaming PCs and the Samsung Galaxy Note 20 Ultra. This means that the iPhone 13 could have enhanced cooling, which would allow the chip to work harder as a result.

Vapor chamber cooling works by evaporating a liquid (usually water) with heat coming from the phone's internal components. This spreads the heat throughout the phone, reducing the risk of overheating the device itself. Less heat means that the machine may run faster, providing better processor and graphics performance in the process.

Many smartphones already feature liquid cooling systems, and vapor chamber cooling is also found in several phones, including gaming devices like the LG 5G V40 ThinQ and Asus ROG Phone 3.

Kuo claims that Apple has been working on this technology for some time, but apparently not at a high enough level to include it in one of its phones. For now, it is unclear if it will be included in the 2021 iPhone, but if it is, the iPhone 13 will have a significant advantage over its competitors.

It is already clear that the performance of Apple's A14 Bionic chip is leaving Android chipsets behind, and the A15 Bionic, which will be released later this year, will certainly continue that trend. Vapor chamber cooling, which further deprives the iPhone 13 of excess heat, could further improve its operation and turn it into a serious mobile powerhouse, especially over extended periods of time.

It is even more important given the role of 5G. iPhone 12 is known to generate heat when connected to a 5G network, and an improved thermal management system would make it easier to deal with the heat and prevent it from getting too hot and crashing. Cooler temperatures would also extend battery life.

Considering how much worse the battery life of the iPhone 12 got with 5G on, future iPhones will need all the help they can get as 5G usage grows.

We won't know for sure until September, when Apple is expected to announce the iPhone 13 series. Nevertheless, more information will become available in the coming months as more specific details leak online.