data koreaKorean eSim. Pros. Cons. No need to insert any physical SIM card into your phone. Can drain your phone battery the more you use your data. Can easily top up data if you run out. Much cheaper than roaming. Comes with a local phoneDiscover economic indicators for South Korea, such as GDP, GNP and FDI to use in your data forecasts and economic reports on the South Korea`s economy with CEIC. . ENG. English;