I am totally new to AR and before I buy a new iPad Pro I wanted to know if there is any difference for ARkit development and debug between getting an iPad Pro with wifi or cellular. I looked at the specs between both iPads and compared them. Of course, iOS 12 supports AR on all new iPads. Not sure if I miss something but it seems to make no difference. I only want to avoid surprises. Don't I need GPS to get the exact location required to recognize objects? Are the sensors in the iPad Pro enough in all cases?