Three Ireland delayed the launch of 5G from 2019 to 2020 in order to enjoy a more substantial rollout. By the end of the year, users across all major cities in Ireland can expect to enjoy the benefits of 5G network connections to their mobile sim. Moreover, making the transition is set to be a very simple task once 5G drops. You will simply need to reset your phone before enjoying unlimited data on your sim on what will be an even faster unlimited data plans.