https://finance.yahoo.com/news/samsung-galaxy-s10-5g-193009393.html

Like the first generation of 4G smartphones that hit the market years ago, however, the 5G experience will be spotty at best. Many cities won't be covered with the new high-speed, low-latency, high-bandwidth cellular technology, which means 5G devices will end up falling back on 4G LTE connections.

But if developers are going to get their hands on 5G devices to help build out the apps and features that companies like AT&T, Sprint, T-Mobile, and Verizon have promised, then this is the only way to do it.