Kyocera was on to something
Around the time Samsung started teasing us with its foldable AMOLED, Kyocera released a dual-touchscreen Android phone called the Echo. It had dual 3.5-inch displays that folded into one another, plus software tweaks allowing you to run two apps simultaneously, side-by-side. Again, this is a case of another manufacturer being ahead of its time. The version of Android it was running didn’t yet support split-screen mode.
