Optimistic 5G internet enthusiasts believe that the new generation will be available to the average user within a matter of months. Skeptics, however, aren’t so sure. Unfortunately, the process of shifting to a 5G network can be complicated. Currently, a massive 4G infrastructure is in place; 5G turns this on its head by requiring more antenna.
While many carriers have big plans for deploying 5G mobile networks, manufacturers don’t appear to be following suit with actual phones. Experts don’t expect fully 5G phones (not featuring add-on accessories) to be available until 2019. Even then, pickings could be slim for some time. Read here: 5G characteristics