A:Answer I purchased an unlocked S8 on Long Island, New York a few weeks ago. The Best Buy rep sold me the phone, contacted my provider for me to have the service transferred from my old S4, and then transferred all my contacts, apps and data to the new phone for me. The whole process took a bit over an hour in store, but would have been much shorter if I'd skipped transferring my files between phones (which can be done on your own afterward if need be).
Hope this helps.