A new leak has revealed more details about Apple’s first foldable iPhone months before its expected launch. The device is widely rumored to arrive as the iPhone Ultra. According to the source on Weibo, Apple plans to use a vapor chamber cooling system in the foldable phone. The system could improve heat management and deliver better thermal performance during heavy use.
The leak claims Apple has achieved “impressive VC cooling performance” on the upcoming device. This detail is important because the foldable iPhone is expected to feature a very slim body. Reports suggest the phone will remain thin, especially when unfolded. However, Apple still appears to have found enough space for the advanced cooling system.
The latest leak also mentions that the iPhone Ultra could feature a liquid metal hinge. The hinge may improve durability and help reduce wear over time. Earlier rumors also suggested Apple has been testing stronger hinge materials for its first foldable device.
In addition, the source says the foldable iPhone is still on schedule for a September launch. While Apple has not confirmed the product, leaks around the device have increased in recent months.
Notably, Apple first introduced vapor chamber cooling with the iPhone 17 Pro and iPhone 17 Pro Max. The technology helps control heat more efficiently than traditional cooling methods. As a result, users can expect better sustained performance during gaming and demanding tasks.
Apple’s foldable iPhone remains one of the company’s most anticipated products. If recent leaks prove accurate, the iPhone Ultra could bring a thinner design, improved cooling, and a more durable hinge system in a single package.

