I am leaving in 14 days for Porto. I have everything ready, but need to think about getting cell access. I have an unlocked Samsung Galaxy 8 that I was going to bring. Can I take that device to Vodafone and get a prepaid SIM card? Sorry if this question is naive. I’ve always turned off my phone when travelling, but I’ll be travelling solo and feel better about having a phone. Also, would the SIM card work in Spain too?