5G is already here, but unless you live in a specific place in a particular technology, you can't get super fast. That is about to change. Samsung and Verizon (VZ) jointly announced on Monday that the two companies will sell 5G smartphones in the first half of 2019. Although they didn't say which phones will support 5G, Samsung usually launches its latest Galaxy S smartphone in the spring. The mysterious phone may not be the first 5G smartphone to go public. Verizon and Samsung are uncertain about other companies' plans, saying they will be "the first." But Samsung is by far the world's largest smartphone maker, and its decision to launch a 5G smartphone means that other markets will not fall behind. If smartphone companies want to remain competitive in the next few years, 5G will soon become a must. This still does not solve the network availability problem. Verizon's 5G network is currently only available in a few cities. AT&T(T) has also establis...