Captain
Final Approach
I'm using T-Mobile. However, we do go to Europe a few times per year and I'd like to use the phone there. My T-Moble phone I could use anywhere, but it would be cheaper to buy a local sim card, so I'd like the availability. I also want an unlocked phone so I can buy a local sim card. Are you saying that a US Nexus 5 wont work in Europe?
Nope, it's just they offer a different model in Europe. I went to England this past summer and brought my Nexus 4. I bought a one month 'all you can eat' sim card from THREE for $20. Vodophone sold the same thing but it was like $80 with a 2Gig cap.
Pulled out my sim card, put in the sim card from THREE and I had local phone and data for the month I was there. Worked great. Do a Google search for the country you're going to in order to shop rates and get reviews. This is a common topic and pops up easily with search.