A fresh patent granted to Apple shows that the Cupertino giant is hard at work on its own foldable smartphone. Interestingly, there are several different types of options that Apple is looking at in terms of the way the screen folds, the number of folding segments, and the types of hinges that it might use.
https://www.notebookcheck.net/Fresh-Apple-foldable-smartphone-patents-show-it-is-working-hard-on-the-idea-too.409481.0.html