Do 4G/LTE phones purchased in India, support 4G in the US?
I moved to the US from India last year and my 4G phone bought in India worked perfectly in the US.I'd done some research about this before I left because I was in the same position as you. After reading a lot, I came to the conclusion that the compatibility depends entirely on the model you are purchasing and not on where the phone is from.The bands used for the 4G transmission in India are different from those in the US. Most phones are made to work with multiple bands, allowing them to be used in different countries. The bands supported by the phone are mostly a part of the specifications available online and on the box of the phone.I suggest that you compare the bands supported by the phone you are planning on buying with the bands used by the major carriers in the US and take a decision accordingly. I don't remember what bands these are but a quick Google search should yield the answer.All the best!P.S. I am currently back in India on break and I am using 4G on a phone bought in the United States, without any problems. Clearly it is a problem of hardware in the mobile rather than where it was made and/or sold.