Jun 30, 2026BF3-0397Right

ldt: iPhone 18 Pro vapor chamber will be larger

The iPhone 18 Pro will have a larger vapor chamber.

Leaker ldt reported that the iPhone 18 Pro would use a larger vapor chamber than the iPhone 17 Pro, alongside WMCM packaging that moves the DRAM chip next to the A20 Pro processor to help with heat.

How to read this record

  1. What was reportedThe iPhone 18 Pro will have a larger vapor chamber.
  2. Who said it, and whenldt (@madeby_ldt) reported it on Jun 30, 2026 in Android Authority.
  3. What happened, and whenApple iPhone 18 Pro was announced on Sep 9, 2026, 71 days after this report.
  4. The verdict, and whyRightIt turned out the way this report said.Why: Apple describes a next-generation vapor chamber with three times the surface area on iPhone 18 Pro, so the larger vapor chamber shipped. What the company published
What do these words mean?
Right
It turned out the way this report said.
Partly right
Some of this was right and some of it was not.
Wrong
It did not turn out this way.
Moving target
This was right about the plan at the time. The company then changed it.
Never settled
The company has announced the product and nobody ever confirmed or denied this.
Not comparable
This measured a different thing from the number the company published, so the two cannot be compared.
No outcome yet
Nothing has happened yet that would prove this right or wrong.
Not checked yet
The company has answered this. We have not finished checking this one.
Checked
Checked means the company has since given an answer and we compared it with what was reported. Details still waiting on an answer, details nothing can settle, details where the plan itself changed, and details we have not finished reviewing are all counted separately and are not part of that number.
Moving target
A moving target is a report that described the plan accurately at the time, on a product the company then changed. We count these on their own: it would flatter a reporter to call them right, and it would blame a reporter for a decision that was not theirs to call them wrong.
Reported by
ldt (@madeby_ldt)
We read it in
Android Authority
Product
Apple iPhone 18 Pro · reported as “iPhone 18 Pro”

The story of this report

  1. Jun 30, 2026ldt (@madeby_ldt) reported it · Android Authority
  2. Sep 9, 2026Apple iPhone 18 Pro was announced · official source
  3. VerdictRightWhat it means, and why, is in the box above.

Who reported it

ldt (@madeby_ldt) · Leaker

3 reports in the Reporting Record. The one we have checked held up. The other 2 are not part of that number: 2 never settled.

Every report from ldt (@madeby_ldt)

What we know now

Our stories about Apple iPhone 18 Pro

Other reports about Apple iPhone 18 Pro

67 reports about Apple iPhone 18 Pro from 21 sources. Of the 25 we have checked, 19 held up.

See all 67 reports about Apple iPhone 18 Pro

Questions about this report

Did this Apple iPhone 18 Pro report turn out to be true?
Right. It turned out the way this report said. Apple describes a next-generation vapor chamber with three times the surface area on iPhone 18 Pro, so the larger vapor chamber shipped.
Who reported it first?
ldt (@madeby_ldt) reported it on Jun 30, 2026 in Android Authority.
How far ahead of the announcement was it?
That was 71 days before Apple iPhone 18 Pro was announced on Sep 9, 2026.