Weibo leaker Fixed Focus Digital has shared a new post about the iPhone Ultra today that reveals a feature not rumored before—a vapor chamber—alongside a release timing update.

iPhone Ultra to have vapor chamber for cooling, with September launch still planned per leaker

Apple continues preparing for mass production of its foldable iPhone Ultra , and as such new leaks keep arriving about what to expect.

The latest details come from Fixed Focus Digital, who posted today that the iPhone Ultra has “impressive VC [vapor chamber] cooling performance” (translated).

This is the first we’ve heard of iPhone Ultra featuring a vapor chamber.

Apple added vapor chambers to iPhone 17 Pro and iPhone 17 Pro Max last year, and they seem to have been a big success.

Vapor chambers, combined with the switch to aluminum, has done wonders for the iPhone’s ability to sustain performance at high levels.…