Talk:Denmark/@comment-59.183.13.195-20150527054349/@comment-85.212.6.156-20150527085620

Most of the local SIM cards you can use for roaming in all of these mentioned countries. But this will cost you heavy surcharges for roaming. You can expect to pay the EU data cap at around 0.23 € per MB (or the equivalent in local currency) abroad and even more in Russia.

SIM cards from 3 in Sweden roam without surcharges on the Three network in Denmark, but not in Norway nor Russia.

For Denmark, Sweden and Norway, there is this UK-issued SIM card: Euro1 which roams for the domestic UK prices in the three countries on 3 network.

For Russia, you should buy a seperate SIM as roaming is not regulated by any EU price cap and therefore charged excessively.