The 2025 adjustment of the frame material for the iPhone 17 series has sparked considerable interest. Specifically, the iPhone 17 Air model will continue to feature a titanium alloy frame, whereas the Pro series and the standard version will revert to using aluminum alloy frames. The choice of titanium alloy for the ultra - thin Air model stems from its remarkable strength and excellent impact resistance. However, this material also brings with it high costs and presents significant processing challenges. In contrast, aluminum alloy is selected for the Pro series and the standard version. This is because it is lightweight, cost - effective, boasts a high recycling rate, and offers superior heat dissipation properties. These advantages of aluminum alloy align with Apple's goal of achieving carbon neutrality by 2030. This material adjustment signifies Apple's transition from focusing on "material flashiness" to prioritizing "user experience." It will be intriguing to observe how the market responds to this change in the future.