https://finance.yahoo.com/news/verizon-turns-mobile-5g-network-154102461.html

The new 5G network is the first to work with a mobile phone, last year's Motorola's Moto Z3, assuming you have the required Moto mod accessory that attaches to the back of the phone and has the required chips to connect to 5G. 

The phone currently retails for $480 on Verizon's website. The 5G mod is sold separately for $199.99, a discount from what Verizon says is a retail price of $349.99.