I'll be spending about 20 days in USA, but across multiple cities on the East and West coasts. What would be a good GSM Sim only mobile plan for this?
I've looked through some data online and it seems like T-mobile is the best choice in prepaid plans. The $30/mo plan with 100 voice minutes and 5 GB of LTE seems like a good plan. However I cannot find any information about domestic roaming charges and domestic data roaming on these plans.
Does anyone know about the domestic roaming charges for T-mobile in the US.?
