iPhone 18 Pro Aluminum Casing Explained: Thermals, Scratches, and Tradeoffs

A new leak suggests the iPhone 18 Pro aluminum casing will carry forward the same alloy Apple introduced with the iPhone 17 Pro, and if accurate, that means inheriting both the thermal performance gains and the cosmetic wear susceptibility that came with it. Leaks from Fixed Focus Digital described the 18 Pro as "still aluminum alloy, with really good heat dissipation" and the same color scratch risk as its predecessor. That's an unconfirmed report from a single leaker. The reason it's worth taking seriously: the iPhone 17 Pro was already a notable material departure. Apple had used titanium on the 15 Pro and 16 Pro, and stainless steel on Pro models before that, PhoneArena noted last November. The switch to aluminum wasn't a minor spec change. If the 18 Pro continues that direction, the material's real-world behavior matters for anyone weighing an upgrade. What follows is a grounded account of what aluminum delivered on the 17 Pro, where cosmetic wear actually showed up and why, and w

iPhone 18 Pro Aluminum Casing Explained: Thermals, Scratches, and Tradeoffs

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