As Sony looks to revitalise its Xperia sub-division this year, rumour has it that it will attempt to do so by releasing the world's first 5G and 4K OLED smartphone. The company's next flagship, supposedly called the Xperia 2, will feature a host of other flagship hardware too.
https://www.notebookcheck.net/Sony-to-announce-the-world-s-first-5G-and-4K-OLED-smartphone-at-MWC-2020.451744.0.html