Apple Replaces Titanium With Aluminum on iPhone 17 Pro, Claiming 40% Better Sustained Performance
Updated
Updated · Boy Genius Report · Jun 7
Apple Replaces Titanium With Aluminum on iPhone 17 Pro, Claiming 40% Better Sustained Performance
3 articles · Updated · Boy Genius Report · Jun 7
Summary
Apple built the iPhone 17 Pro and Pro Max around a 7000-series aluminum unibody with a laser-welded vapor chamber, making cooling the centerpiece of the 2025 redesign.
That chassis lets heat dissipate more effectively than the prior titanium-backed approach, and Apple says it gives the A19 Pro 40% better sustained performance than the A18 Pro.
The aluminum redesign also enabled a larger camera module, freed internal space for bigger batteries, and integrated an improved antenna system into the phone's perimeter.
Titanium has not disappeared from Apple's lineup: the iPhone Air still uses it for strength in a 5.6 mm body, suggesting Apple now reserves the metal for ultra-thin designs rather than Pro models.