A:Answer I live in the Phoenix area, and we are known for having some really good phone infrastructure nation wide. I switched from iPhone 7 to Galaxy S8 and I noticed no significant difference in call quality or signal strength, all being excellent. I did notice, though, that on drives from Phoenix to Tucson through areas of low signal strength, that the Samsung seemed to utilize LTE better. That is, apps loaded better, did not get "hung" or freeze while loading so to speak.
As far as accessing phone and networks, the Samsung is a great choice from what I have experienced in my area. Equal to the iPhone in many respects and better in some.