We will be visiting the Czech Republic, Poland, Hungary and Austria in April for about 3 weeks. We are looking for a good sim card that we can buy in the Czech Republic and use in all four of these countries. Data (at least 5gigs) and texting are the most important. Any recommendations?
You can pick up a visitor's SIM in any Vodafone shop. It will be good for all EU countries, so you can travel freely through Czech Republic, Poland, Hungary and Austria and all the calls you make will be charged as local calls. Also, there are no fees for data roaming, which is great. Apart from the presiding over the longest period of uninterrupted peace in Europe, it is possibly the EU's greatest achievement.