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Tom’s Guide
Tom’s Guide
Technology
Tom Pritchard

iPhone 17 Pro Max sustained performance tested — does the vapor chamber cooling actually work?

IPhone 17 Pro Max.

This year is the year Apple declared war on heat in its phones. Not only do the iPhone 17 Pro and iPhone 17 Pro Max have a new vapor cooling chamber, but the new design has also been crafted to help keep the phones as cool as possible — even during periods of sustained performance.

The switch to aluminum from titanium, a metal that reportedly caused overheating issues over the past couple of years, plays a key role in this. Likewise, the controversial raised camera bar (or forged plateau) houses more of the components. But have all these hardware changes actually worked?

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