After years of hype about gigabit speeds that will let you download full-length movies in mere seconds, 5G became a reality in 2019. All four wireless carriers flipped the switch on 5G in the U.S., and you can buy 5G phones that can take advantage of faster speeds on those networks. And yet, people still struggle to explain just what 5G is. Part of the confusion stems from the fact that 5G hasn't yet realized its full potential. Here's where we are now, and what we can expect from 5G when the new networking standard blankets the country with faster speeds and lower latency.