Foldable 'iPhone Ultra' Rumored to Feature Vapor Chamber Cooling Despite Thin Design

Apple's first foldable i Phone, known as the "i Phone Ultra," will feature impressive vapor chamber cooling and launch in September despite production difficulties, a known leaker today reported. The i Phone 17 Pro's vapor chamber thermal plate. In a new post today on Weibo, the leaker known as "Fixed Focus Digital" said the foldable i Phone's pre-assembly manufacturing processes are facing pressure and that the initial production ramp-up is proving difficult. The leaker added that prevailing speculation points to the original September launch schedule holding, and teased that further positive news is expected tomorrow. The leaker added that the device will feature vapor chamber (VC) cooling and that its thermal performance is "quite impressive," with Apple "really going all out" with its thermal engineering. The claim marks the first time a source has attributed vapor chamber cooling to the ‌iPhone Ultra‌, and the detail is notable given the extent of the design compromises the device is expected to make. Rumors suggest the ‌iPhone Ultra‌ could be missing at least five features present on the ‌iPhone 17 Pro‌, including Face ID, a telephoto camera, MagSafe, the Action Button, and a physical SIM card slot, largely as a result of its 4.5mm folded thickness. The iPhone Air, which shares a similar ultra-thin philosophy, does not feature vapor chamber cooling, making its presence on the ‌iPhone Ultra‌ far from a given before today's report. Apple overhauled the thermal design of the ‌iPhone 17 Pro‌ last year, adopting a vapor chamber cooling system for the first time in an iPhone. The system circulates a small amount of deionized water to move heat away from the A19 Pro chip and distribute it throughout the device's aluminum unibody frame, with Apple claiming the design delivers 40% better sustained performance for demanding tasks compared to the graphite thermal systems used in previous Pro models. The post arrives amid a se