As of now, not a single 5G smartphone has an official launch date, though we know they're on the way.
As the world transitions from 4G to 5G, it seems everyone wants to be the first to provide it, whether it's a telecommunications company or smartphone manufacturer.
While some carriers are still in testing, others like Verizon, AT&T, T-Mobile, and Sprint have begun rolling out 5G to select cities, though that's not very useful when 5G-compatible devices aren't yet commercially available.
