https://www.cnet.com/news/lg-v50-will-be-sprints-first-5g-device-this-spring/

As the fourth biggest carrier in the US, Sprint is poised to roll out its 5G network this year to a few cities: Atlanta, Chicago, Dallas, Houston, Los Angeles and Washington, DC. In a February 2018 briefing with reporters, Sprint Chief Technology Officer John Saw said that the network aims to deliver 5G at a quicker pace to more people than other carriers.

As for specs, the V50 features Qualcomm's Snapdragon 855 octa-core processor, 6GB of RAM and a 4,000-mAh battery that should help offset the power drain from the 5G connection.