Last time I went to IT show , I remember got booth selling internaional SIM card which can be used in Japan as data and calling. Did anyone buy one and try before? Is the coverage for this type of card good?
If not, can anyone recommend which data sim card has better coverage and will have strong signal in most of Japan including mountain area.
If not, can anyone recommend which data sim card has better coverage and will have strong signal in most of Japan including mountain area.