I have sold both the concept and the Pioneer......take my word for it, if you can afford the Pioneer, get it. The problem with Concept is that they are made from some Korean company that just manufactures low grade products and distributes them to other companies, so they can sell it as their own. Other than the bigger screen size, the main difference is going to be: better picture, better sound, bigger screen, lower failure rate, and higher quality NAV mapping from the Pioneer. Hope this helps.