This is promising for carriers like AT&T and T-Mobile, both of which plan to use mmWave for early 5G deployments. Qualcomm states that the antenna modules, which pair with its X50 modem, support up to 800Mhz of bandwidth in the 26.5-29.5GHz; 27.5-28.35GHz; and 37-40GHz mmWave bands.

But which companies plan to reveal — or at least tease — 5G smartphones in 2019? Companies like LG and Huawei, have already announced they'll throw their hats in the ring next year, while Qualcomm reported in February that 18 manufacturers were working on 5G devices for 2019 including Nokia, Sony, Xiaomi, and Asus. Adding to that, OnePlus CEO Carl Pei confirmed at the summit that his company expects to release one of the first, if not the first, 5G phones in 2019. In short, it seems like there'll be no shortage of manufacturers coming to market with a 5G device in the near future — here's hoping performance lives up to the hype.