We will be in the U.K. for Thanksgiving week. I have an iPhone X and my carrier does not have an international plan. I only want to use it for the Maps app. While in London last year our hotel gave us a cell phone to use at no charge. It was soooo handy to have a map app to help guide us. I don’t know if I should get a sim chip for my phone when we get there or buy an inexpensive phone. I won’t making any calls for text messages. My phone is new, will unlocking it effect my warranty.
Thank you all for the information. I am leaning towards getting a sim chip when I get there. This will be a practice run for our 5 week trip next year to London, Prague, Germany and France. I will let you know what happens. My carrier is Comcast.