The Huawei Mate XT is based on Antonio Gomes’s and prof. Vertegaal’s PaperFold prototype, the first ever trifold phone designed in 2014. The XT is the first trifold phone to enter the market, and features a fully foldable flexible OLED display with a special hinge mechanism. Although it has some interactive shape characteristics, PaperFold is still more advanced in its use of the shape of the phone to determine its functionality.