Apple Said to Boost Foldable iPhone Cooling Orders

Apple has reportedly increased orders for vapor chamber cooling components tied to its upcoming foldable iPhone and future 20th-anniversary iPhone models, according to Chinese leaker Fixed Focus Digital.

The leaker says the higher order volume will first support production of Apple’s book-style foldable, sometimes described as the “iPhone Ultra,” which is still expected to debut in September. Apple has reportedly asked suppliers to build about 10 million foldable iPhones in 2026, up from an earlier estimate of seven to eight million units.

Fixed Focus Digital previously claimed Apple is using “impressive” vapor chamber cooling in its first foldable and that the company is “going all out” on thermal design. That has not been independently confirmed, but the report argues the foldable form factor could create extra heat-management challenges because of a thinner internal structure and less room to dissipate heat.

Apple first brought vapor chamber cooling to the iPhone line with last year’s iPhone 17 Pro. The setup uses a small amount of deionized water to pull heat away from the A19 Pro chip and spread it through the phone’s aluminum unibody frame.

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The same cooling approach may also matter for Apple’s 20th-anniversary iPhone, expected in 2027. That device has been rumored to feature an edge-to-edge display with glass curving around all four sides for a nearly borderless look. Apple is said to be planning two anniversary models in sizes similar to the upcoming iPhone 18 Pro and iPhone 18 Pro Max, which are rumored to keep the current 6.3-inch and 6.9-inch sizes used by the iPhone 17 Pro models.

Earlier this week, Fixed Focus Digital also said Apple’s “preferred approach” for the iPhone 20 is a return to glass, and that manufacturing facilities have already been renovated for the project.

Separate recent reports cited by MacRumors have said Apple’s foldable remains on track for a September debut, while Samsung Display has reportedly received approval to start module production of OLED panels for the device, with an initial order of around three million panels due for delivery this year.