OnePlus and Sprint are working together to bring a 5g phone to the US. They both said, that more details will be announced soon!
Currently OnePlus sells a 5g version overseas, but only sells a 4g version in the US unlocked. It will work on AT&T, Verizon and T-Mobile networks.
Sprint currently has 5g in five cities and will be adding four more cities in the “coming weeks.”