Traveling to Switzerland soon? Don't get stuck with high roaming costs or slow overseas data bundles. Did you know they reduce the internet speed abroad? Switzerland is already expensive enough so get yourself a local sim card on arrival. It is easy, fast and the cheapest way to stay connected. In this guide you will find everything you need to know about buying a sim card in Switzerland with the best network, up to date prices for prepaid sim cards as per June 2021, info about 5G, EU roaming and more.