The primary use case that I can see is a tablet that can be folded into a smartphone or vice versa. In any case, if one needs to use a larger display they can simply unfurl the smartphone to reveal a larger display. That being said the display still doesn’t fold completely flat and one can see the ridge formation on the display where the bend takes place. Whats drool worthy is the back of the smartphone, that will double as a camera mirror when folded. That being said, the Lenovo Prototype is still being powered by dated hardware. The Tablet runs on Qualcomm Snapdragon 800, and the screen resolution is 1920×1440. The display size is 5.5-inch when folded, and in tablet mode, the display size goes up all the way to 7.8-inches. The tablet is running on the Android 7.0, and the product looks unfinished. While we have been witnessing a handful of foldable display exhibits none of them have actually made it to mass production. The closest that one could get was the Galaxy Round and the G Flex Bend (both Curved Displays but not foldable). The race to mass produce a completely foldable display has lead LG, Apple and Samsung to come up with new prototypes almost every year. In fact, last year Apple patented a clamshell phone with a foldable display while Samsung had done the same with a foldable tablet a couple of years ago.
