Apple reportedly boosts vapor chamber orders for foldable iPhone

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

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

Fixed Focus Digital previously claimed Apple’s first foldable iPhone would use “impressive” vapor chamber cooling and that the company is “going all out” on thermal engineering. MacRumors notes there is no independent confirmation, but a foldable design could create added cooling pressure because of a thinner internal structure and less room to dissipate heat.

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

The report also points to Apple’s planned 20th-anniversary iPhone in 2027, which is said to feature an edge-to-edge display with glass curving around all four sides for a nearly borderless look. If that redesign arrives as described, it may also need a more advanced cooling setup.

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Apple is expected to release two anniversary models in 2027, in sizes similar to the upcoming iPhone 18 Pro and iPhone 18 Pro Max. Those devices are rumored to keep the current iPhone 17 Pro dimensions of 6.3 inches and 6.9 inches. 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 tied to the project have already been renovated.