Samsung is working on a smartphone with a collapsible screen for some time. As reported by "mysmartprice," quoting statements by cell phone boss DJ Koh, the device will be presented on Wednesday as part of a developer congress. The device will be named "Galaxy F" or "Galaxy X" and will have two screens – a foldable inside and a normal exterior. The larger screen is 7.29 centimeters high, the smaller 4.58 inches. This should allow it to be used as a tablet and as a smartphone.