Traveling to Poland any time soon? Don't get stuck with high roaming charges or slow overseas data roaming. Traveltomtom recommends buying a prepaid sim card in Poland. The 4G/5G network in Poland is good and data packages are very cheap! In this complete guide for buying a sim card for Poland you will find everything you need to know: where to buy a sim card, up to date prices as per March 2022, the best 4G/5G network operator, EU roaming limitations and even info about e-sim cards for Poland.