iPhone 17 Pro 再次爆料，今年降级了

Core Insights - The iPhone 17 series will undergo significant design changes, including a major adjustment in materials used for the device's body [1] Group 1: Material Changes - The iPhone 17 Pro and iPhone 17 Pro Max will switch from titanium alloy to aluminum alloy for the frame, with the back cover made of a half-aluminum, half-glass composite material [2] - The decision to downgrade from titanium to aluminum is primarily to accommodate a new vapor chamber (VC) cooling system, enhancing heat dissipation, reducing weight, and lowering manufacturing costs [6] - The iPhone 17 Air will be the only model to feature a titanium alloy frame, emphasizing its ultra-thin design with a thickness of only 5.5mm [7][9] Group 2: Structural Integrity - The use of titanium alloy in the iPhone 17 Air is intended to provide greater hardness and improved tensile strength compared to aluminum, ensuring structural stability and durability while maintaining a slim profile [11] - Despite the iPhone 17 Pro series using aluminum, it will feature an integrated aluminum design, including the rear camera module, with a glass insert in the Apple logo area to support wireless charging [13]