I will be in Austria (3days) and Switzerland (5days). I am looking for a SIM card with some good data package. I will be basically using it for google maps gps (i will be renting a car in Salzburg), and using tripadvisor app. Very rarely for phone calls. Mostly local. Not international. Is there any SIM card that will work in both countries without extra roaming charges? If not which is the cheapest SIM card that I can purchase separately in both countries? And what data package should i choose for these countries. I am looking for for something around 1 GB/500 mb for the whole week.
Can anyone please suggest me something. I have gone through various operators website. But totally confused on what to choose.