I know enough to not use my 5 for gps, data, etc, as it will cost as much as the rest of my trip. But I have an old 3G that is no longer being used. Would it be usable in Ireland if I bought a SIM card there? Can I get a SIM card for a 3G?
I would only want it for GPS during the day. I could use my 5 when I am within WiFi spots, so as to not incur absurd AT&T charges, but if the 3G can work for GPS, then it will mean I don't have to rent one.