According to analyst Ming-Chi Kuo, Apple is experimenting with a titanium outer shell reinforced by aluminium components in key structural areas.

The combination would allow for greater flexibility around the hinge mechanism - one of the biggest engineering challenges for foldable devices - while ensuring the phone remains strong enough to withstand repeated folding cycles.

The new design is reportedly being developed by Apple’s mechanical engineering and materials teams, with prototypes already in testing.

Kuo said: “Additionally, the metal frame will turn favorable on increasing usage of titanium, which will likely be adopted by iPhone 18 Fold (titanium + aluminum) and iPhone 18 Air.”

The device, supposedly referred to internally as iPhone Fold, is said to be closer in concept to a clamshell-style iPhone Flip than a book-like design such as the Galaxy Z Fold series.

Insiders claim that Apple has been working on multiple hinge prototypes and display technologies since at least 2018, with the latest version expected to feature an ultra-thin glass OLED display supplied by Samsung Display and LG.

Apple is also said to be collaborating with suppliers on advanced waterproofing and crease-reduction technologies to ensure the device meets the company’s high quality standards.

While no release date has been confirmed, analysts suggest the foldable iPhone could launch in late 2026 or early 2027, likely positioned as a premium product above the iPhone 18 Pro range.