Apple’s anticipated foldable iPhone, set to debut in 2026, is expected to feature a frame composed of titanium and aluminum. This marks an expansion of Apple’s use of titanium, which will also be utilized in the iPhone Air models. The foldable iPhone is rumored to incorporate a mix of materials, with titanium and stainless steel potentially used for the hinge, while the frame itself may be crafted from titanium. Some components of the hinge could also include Liquidmetal for enhanced durability.
The device is projected to be remarkably thin, measuring just 4.5mm when opened. This design necessitates the strength of a titanium frame to prevent bending, a strategy already proven effective in the iPhone Air. While there is some ambiguity regarding the exact use of titanium and aluminum, it is speculated that Apple might employ a hybrid compound or use the metals in different areas to balance strength and weight.
The foldable iPhone is anticipated to be part of the iPhone 18 lineup, with a display size of approximately 5.5 inches when closed, expanding to 7.8 inches when opened. This innovative approach aims to leverage the benefits of both titanium and aluminum, potentially setting a new standard for future devices.

