As Samsung is almost sure that they will gonna introduce their Galaxy S9 and S9+ in this annual mobile tech event in Barcelona. Another one is expected there too
Sony just rolled out their official invites to global tech media for Mobile World Congress (MWC) this Feburary 26
There are rumors that they might gonna unveil there the possible Sony Xperia XZ Pro with an OLED display plus 18:9 display and the re-introduction there of their Xperia XA2 Ultra which has a dual selfie camera which first introduced in the recent CES 2018
Via GSMArena