Republic Wireless happens to be a unique MVNO (Mobile Virtual Network Operator) that relies on both VoIP calls over Wi-Fi as well as Sprint’s network for roaming capability. Of course, if you think that 8GB is not enough for you, there is always the option to bring home a 16GB model, which will cost $30 more. It is a no-brainer as to which particular version you should pick up, especially since $30 might not go very far in this day and age, no thanks to inflation and the ilk.
Republic Wireless do have plans that start from $25 monthly for unlimited calling, texts, and 3G data, and those who want 4G connectivity can do so for $40 per month. It makes no sense to jump aboard the 4G bandwagon since the Moto G is 3G only though.