Republic Wireless is one of the new kids on the block when it comes to offering pre-paid wireless service, but it's also one of the most competitive. Republic Wireless offers its customers unlimited talk, text, and data for only $19 a month; no strings attached. However, it encourages its users to use Wi-Fi whenever they can. The Motorola Defy XT that Republic Wireless sells has a hybrid technology that allows users to make calls or texts though their Wi-Fi network, similar to that of T-Mobile’s Wi-Fi calling. If you can’t connect to Wi-Fi, nothing bad will happen, you’ll just be utilizing Sprint’s network.