Apple Reportedly Ramps Up Vapor Chamber Orders for Foldable iPhone - MacRumors
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Apple Reportedly Ramps Up Vapor Chamber Orders for Foldable iPhone

Apple has ramped up orders for vapor chamber cooling components said to be destined for its upcoming foldable iPhone and 20th-anniversary iPhone models, according to a Chinese leaker.

Vapor Chamber Plate
The Weibo account known as "Fixed Focus Digital" claims the increased order volume will first support the manufacture of Apple's book-style foldable, or "iPhone Ultra," which is expected to debut in September. Apple has reportedly asked suppliers to produce approximately 10 million foldable iPhones in 2026, up from an earlier forecast of seven to eight million units.

Fixed Focus Digital previously said Apple's first foldable iPhone would feature "impressive" vapor chamber cooling, claiming that the company is "going all out" with the device's thermal engineering. While there's no corroborating evidence, it's quite possible that the foldable design Apple is adopting could present unique cooling challenges because of its thinner internal structure and limited space for heat dissipation.

Apple introduced vapor chamber cooling to the iPhone lineup with last year's iPhone 17 Pro. The system uses a small amount of deionized water to move heat away from the A19 Pro chip and distribute it through the device's aluminum unibody frame.

Meanwhile, next year's 20th-anniversary iPhone will reportedly feature an edge-to-edge display with glass that curves around all four sides, with the aim of creating a nearly borderless appearance. If indeed we see such a device with a substantially redesigned enclosure, there's a good chance that it too will require a more advanced cooling system.

Apple is expected to offer two anniversary models in 2027 in sizes similar to the forthcoming iPhone 18 Pro and iPhone 18 Pro Max. The latter devices are rumored to retain the 6.3-inch and 6.9-inch dimensions of the current iPhone 17 Pro models, suggesting next year's commemorative lineup could use the same display sizes.

Earlier this week, Fixed Focus Digital claimed that Apple's "preferred approach" for the iPhone 20 is a return to glass, and that the relevant manufacturing facilities have already been renovated in advance of the project.

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Top Rated Comments

12 weeks ago

- So, if every chip comes with better power efficiency, why would they need more cooling and vapor chambers?
Because power efficiency and total heat output are not the same thing.
A more efficient chip uses less energy to perform a given amount of work, but manufacturers usually exploit that efficiency to run the chip faster rather than merely reducing power consumption.

For example:

* Old chip: 100 units of performance at 10 W
* New chip: 150 units of performance at 10 W

The new chip is 50% more performance-efficient, but it still produces roughly the same 10 W of heat. If the manufacturer allows it to consume 12 W for short periods, it may deliver 180 units of performance. That now requires even better cooling despite being fundamentally more efficient.
Score: 20 Votes (Like | Disagree)
H.E. Pennypacker Avatar
12 weeks ago

still not seeing these take off, 10 million units seems beyond optimistic

Folding phones are 2% of the Global market and 67% of those sold are clamshell style not "book" style.

Customer satisfaction sits at around 70%, and 64% of survey respondants say they aren't interested

https://www.cnet.com/tech/mobile/64-of-people-still-dont-want-a-foldable-smartphone-cnet-survey-finds/
Same could have been said about the iPhone when it first launched. Apple doesn’t win by making it first. They win by making a category appealing to people who ignored it before.
Score: 11 Votes (Like | Disagree)
H.E. Pennypacker Avatar
12 weeks ago

If this was Jobs's Apple, you might have a point. However, when was the last time that happened for them? iPod, iPhone, iPad... then what? The watch… that's tied exclusively to the phone (and thus only a subset of phone users)? Certainly not the Vision Pro.

This is going to be the first "new" product since the Vision Pro. We're just going to have to see how it goes. I should say, as someone who bought iPods, iPhones, iPads, and Apple Watches early on (and have since dropped the watch and the iPad)… neither the Vision Pro nor this foldable phone call to me. Maybe it's because I'm older and my perception of my needs has changed. Maybe it's because I see both products as signs of a company that's lost its rudder. Maybe it's a mix of both. We'll see.
I disagree with the premise. Steve Jobs was a once in a generation leader but Apple hasn’t been standing still since he passed. AirPods, Apple Watch, and Apple Silicon have all been massive successes. Whether the foldable succeeds is a separate question but I don’t think it’s accurate to dismiss Apple’s ability to execute simply because Jobs isn’t there anymore.
Score: 8 Votes (Like | Disagree)
H.E. Pennypacker Avatar
12 weeks ago

You're comparing a revolutionary world-changing product...to an iteration of that product that doubles the price and removes half of the best features.

Try to comprehend this.
Revolutionary is hindsight. Before the iPhone launched critics called it an overpriced touchscreen with no keyboard, no 3G no MMS no copy/paste and said it couldn’t compete with BlackBerry or Nokia. It only became obviously revolutionary after it proved itself.

That’s exactly why I’m skeptical of declarations that the foldable is obviously going to fail.

Try to comprehend this.
Score: 3 Votes (Like | Disagree)
12 weeks ago

Whoever at apple thinks they're gonna sell 10 million of these folding phones the first year at over $2K a pop in this economy should be ordering crack pipes instead of vapor chambers.
The thing with a K shaped economy is there are still a lot of folks with a lot of cash

Also a lot of folks pay in monthly installments, over 2 years the extra monthly cost of the difference between a pro max, which tends to sell well, and this likely ultra doesnt add enough to trigger a lot of folks cost red line
Score: 3 Votes (Like | Disagree)
12 weeks ago

Because power efficiency and total heat output are not the same thing.
A more efficient chip uses less energy to perform a given amount of work, but manufacturers usually exploit that efficiency to run the chip faster rather than merely reducing power consumption.

For example:

* Old chip: 100 units of performance at 10 W
* New chip: 150 units of performance at 10 W

The new chip is 50% more performance-efficient, but it still produces roughly the same 10 W of heat. If the manufacturer allows it to consume 12 W for short periods, it may deliver 180 units of performance. That now requires even better cooling despite being fundamentally more efficient.
Thank you. It's refreshing seeing a well-reasoned post here rather than the typical and hackneyed Apple is evil.
Score: 3 Votes (Like | Disagree)
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