Sim card or international phone card?

If you phone is unlocked I would recommend getting a Spanish Sim Card. I use Orange. The plan I use is 20 Euros for 1 month. If you are going to be there longer you need to get it recharged no matter how much data or minutes you have left I get 80 minutes of calls within Spain and 10 Gigs of Internet. I use the internet alot more. The 80 minutes is more than enough as I rarely ever book ahead. But the internet is great especially when I am in out of the way places and I can call home at night on Whatsapp. Also we have an internet phone at home and my wife can call me at the Spanish number I am given at no charge of course. I know Movistar has plans that are similar. From what I have been told it has more minutes and you can call throughout Western Europe but has less internet. Do not quote me on this but I think this is correct information. There is also lots of information regarding this if you check the search function.