When a manufacturer increases orders for a specific component — in this case, vapor chamber cooling systems — it's not a technical story. It's a financial decision. Apple, according to Chinese insider Fixed Focus Digital on Weibo, has raised the production plan for iPhone Ultra from 7–8 to ~10 million units before sales launch in September 2026.
Why cooling is a separate engineering challenge for a foldable iPhone
The foldable form factor physically complicates heat dissipation: the body is thinner, and space for thermal distribution is smaller. According to MacRumors, in its unfolded state, the iPhone Ultra will have a thickness of only 4.5–4.8 mm — less than most modern flagships in their folded form. The vapor chamber solves this through liquid evaporation near the heat source and condensation in cooler zones, distributing temperature across a larger area.
The A20 Pro processor (the first on TSMC's 2-nm process), expected inside Ultra, generates more heat under peak load than its predecessors. Without active cooling in such a thin body — throttling and reduced battery life.
"Apple pays special attention to this component to avoid overheating under high loads"
Fixed Focus Digital, Weibo
10 million — confidence or insurance?
For comparison: the entire first year of iPhone Ultra sales is approximately 10–12% of the annual iPhone 17 lineup volume. Meanwhile, as 9to5Mac reports, Apple is preparing around 70 million units of iPhone 18 Pro and Pro Max. So Ultra is a premium, but not a mass-market product.
The device's starting price, according to consensus from leaks by MacRumors, Macworld and Bloomberg, will be $1999–$2399. This is twice the price of the iPhone 18 Pro and comparable to Apple Vision Pro at launch. The difference is that Vision Pro sold in hundreds of thousands, not millions.
- Display: 7.7–7.8 inches (inner) + 5.3–5.5 inches (outer), panels from Samsung
- Chip: A20 Pro, 2-nm TSMC process
- Body: titanium and aluminum, liquid metal hinge
- Unlocking: Touch ID in the power button instead of Face ID
- Cooling: vapor chamber — the first such component in iPhone
Samsung inside Apple
A paradox rarely highlighted in headlines: the iPhone Ultra depends heavily on Samsung — as a supplier of OLED displays for the foldable screen. Samsung has dominated flexible panel manufacturing for years, and Apple, despite its loud market rivalry, currently has no alternative. This means the first generation Ultra's margins will partly depend on contract terms with a direct competitor.
Increasing the plan to 10 million units is also an increase in Samsung orders. Apple chose growth despite this dependency, which itself speaks volumes about the company's internal confidence in the product.
If the iPhone Ultra truly launches in September 2026 at $1999+ and sells in the stated volumes — it will confirm that the premium foldable smartphone market is ready for scale. If not: Apple will have warehouses full of unused vapor chambers and a question about whether it was worth rushing into a form factor that Samsung has been perfecting over six generations.
