The mooInk V features an 8-inch folding E Ink screen that’s been tested to survive over 200,000 bends.

(Not literally metal in its liquid form ... to a question in the comments about whether screen creases (one of the main issues with current folding phones) can disappear with the use of this ...

According to the Weibo account Instant Digital, Apple has chosen metallic glass (amorphous metal ... folding and unfolding. Its natural resistance to bending and wear could also help the screen ...