Apple’s first foldable iPhone, widely rumored to launch as the iPhone Ultra, has appeared in another leak, this time revealing details about its cooling system and hinge technology.

According to a tipster on Weibo, the upcoming foldable will feature a vapor chamber cooling system, a technology Apple only recently introduced with the iPhone 17 Pro and iPhone 17 Pro Max. Vapor chambers help distribute heat more efficiently across the device, improving sustained performance during demanding tasks such as gaming, video editing, and AI processing.

The leak claims Apple has achieved “impressive” thermal performance despite the foldable’s reportedly ultra-thin design. This is noteworthy because foldable devices have limited internal space, making it more challenging to integrate advanced cooling solutions compared to conventional smartphones.

The same source also reiterates that the iPhone Ultra will feature a liquid metal hinge, a component rumored to play a key role in durability and crease reduction. Liquid metal materials are known for their strength and resistance to deformation, potentially helping Apple deliver a more robust folding mechanism.

Previous leaks suggest the iPhone Ultra could feature:

A 7.8-inch inner folding display

A 5.5-inch cover display

Dual rear cameras

Touch ID integrated into the power button

A battery capacity around 5,500mAh

An A20 Pro chipset

A thickness of approximately 4.7mm when unfolded and 9.23mm when folded

An expected starting price around $2,000

If recent reports are accurate, Apple remains on schedule to unveil the iPhone Ultra alongside the iPhone 18 series in September. The addition of a vapor chamber cooling system suggests Apple is focusing not only on foldable design but also on ensuring flagship-level performance under sustained workloads.