There is a small amount of liquid inside vapor chambers. If the chip gets hot, it evaporates, condenses in a cooler place, releases heat there – and the cycle starts again. Heat does not remain concentrated in specific areas, but is distributed over a larger area. Apple first implemented the concept for the current iPhone 17 Pro series, but according to several reports, it has big plans. Based on the promising experiences so far, figures from suppliers indicate that this cooling system will be found in other iPhone models in the future. Higher order quantities in the long term
According to Fixed Focus Digital, Apple has significantly increased long-term order quantities. The conclusion from this is, on the one hand, that Vapor Chamber is actually used in the iPhone Ultra. At the beginning of June it was said that Apple had achieved a breakthrough (see report). On the other hand, the Weibo leaker derives from his information how intensively Apple is already preparing for the “20th Anniversary iPhone” in a year. In the 2027 model, the cooling has to do even more than in the current devices. It is assumed in the industry that Apple wants to rely heavily on glass parts – and glass is known to be a much poorer conductor of heat.
Especially crucial for the “iPhone 20”.
With such a design, heat distribution is of additional importance because if too much heat builds up around the chip, it leads to throttling and other thermal problems. Apple therefore not only has to work on the new exterior design, but above all also on a sophisticated cooling concept that exceeds the complexity of current systems. As an earlier report said, the approach will be “quite ambitious.” The challenges compared to the iPhone Ultra are also completely different, because the foldable smartphone makes it difficult for engineers due to the very thin casing, whereas the iPhone 20 makes it difficult due to the choice of materials.
