A newly unearthed Xiaomi patent depicts an intriguing device with a design that would fit well with a future Mi Mix 4 (or Mi Mix 2021) thanks to a combination of foldable technology and a slider mechanism. It appears Xiaomi is pushing ahead with work on producing a foldable smartphone that will likely feature an external secondary display.
https://www.notebookcheck.net/Mi-Mix-4-could-end-up-being-a-foldable-slider-smartphone-as-Xiaomi-continues-to-test-devices-with-an-external-secondary-display.499179.0.html
Stole my idea from 2009. Awesome. I knew it would happen eventually
hopefully they keep the dimensions small