https://www.cnet.com/news/galaxy-s10-wont-be-samsungs-first-5g-phone/

The upcoming Galaxy S10 may not be Samsung's first to incorporate next-generation 5G wireless technology.

DJ Koh, head of Samsung's mobile business, told journalists at its recent global Unpacked event that the electronics giant is working with Korean telcos to launch the first 5G model in the country -- and that won't be the Galaxy S10, according to ZDNet. 5G service is reportedly set to launch in South Korea in March 2019.