Demoed at Lenovo's Tech World event, the foldable phone prototype seems to be very similar to what Samsung could be releasing in November. it has a hinge system in the middle of the display and several segments that facilitate the folding angle. the device is quite responsive, but Lenovo still has to rectify a few issues for the final versions.
https://www.notebookcheck.net/Lenovo-demos-foldable-phone-prototype.335914.0.html
Anyone can explain what is it good for? ::) It is not naturally foldable as paper, rather in discrete steps only. Apparently it can't last so many "folds" either.
It obviously folds in a wrong direction. Not useful at all.
This seems to be a "solution" in search of a (non existent) problem.
It has many uses. You can:
1.) Curl it into a "C" and put it on a table
2.) Wear it as a cumbersome cuff bracelet
3.) Brag to Your Friends about having it
4.) Spend time reasoning why it's useful.
...the possibilities are endless!!!