https://www.techradar.com/news/galaxy-x-could-arrive-sooner-than-expected-but-galaxy-s10-might-be-later

Until now the only real Samsung Galaxy S10 release date rumor we’d seen had it down for a January launch, likely at CES 2019, while the same source said that the foldable Samsung Galaxy X would land in February 2019, but now it seems those two timings might have been reversed.

According to leaker Ice universe – who has a reasonable track record – the Samsung Galaxy X will arrive at CES 2019, which runs between January 8-11, while the Samsung Galaxy S10 will land at MWC 2019, which takes place from February 25-28.