https://www.cnet.com/news/samsungs-foldable-phone-is-real-and-opens-into-a-tablet-infinity-flex-specs/

The device he showed isn't the final product. Denison noted Samsung disguised the technology to not give away details too soon.

"The Infinity Flex Display represents an entirely new mobile platform," Denison said. "We've been living in a world where the size of your screen can only be as large as the device itself. We've added a new dimension to help you browse, watch and multitask like never before."