iPhone 18 Pro teardown reveals battery size, larger vapor chamber and relocated infrared camera
Key points
- Teardowns of the iPhone 18 Pro confirm it is powered by the A20 Pro chip built on a 2nm process.
- The vapor chamber cooling system is larger than the one in the iPhone 17 Pro, helping manage heat from the A20 Pro.
- The Dynamic Island is smaller because the infrared camera has been moved under the display.
- iFixit's teardown revealed the official battery capacities for both the iPhone 18 Pro and iPhone 18 Pro Max.
- Internal layout changes, including new materials and altered cables, support faster charging alongside the improved thermals.
- The iPhone 18 Pro and Pro Max went on sale the same day the teardowns were published.
The teardowns came out on launch day, September 18, 2026. REWA Technology published the first video and iFixit followed with its own. Apple had not detailed the internal changes, so most of what is known about the inside comes from these teardowns.
The vapor chamber cooling system first appeared in the iPhone 17 Pro, and the iPhone 18 Pro version is larger. Apple did not announce the moved infrared camera or the smaller Dynamic Island before launch. Both details come from the teardowns. iFixit also confirmed the battery capacities.
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