While Sony still has to officially unveil the long-rumored Xperia XZ4, popular leakster Ice universe returns with an image of a protective film for the display of this upcoming flagship device. According to him, the size of the accessory suggests that the Xperia XZ4 is roughly the size of the iPhone Xs Max.
https://www.notebookcheck.net/Sony-Xperia-XZ4-tempered-film-confirms-21-9-display-ratio.392206.0.html