Will an iPhone XR purchased in India work with US service providers? I am planning to buy an iPhone XR in India, and take it to the US. Will it work on most GSM providers in USA? I compared the specification on Apple's iPhone webpage, and it looks like only a couple of bands are different.
Yes it would. An iPhone purchased in India has support for GSM frequency bands in USA. It would function similar to an unlocked iPhone bought in USA.