XG1-A VERSUS XG1-P

We currently have the XG1-A and when we tried accessing Disney+ and CBS all access we got a message that we needed to upgrade our equipment. We went to 2 xfinity stores and they were out of the 4K in both stores, so we decided to just get it shipped from the message we got.  We just got the XG1-P, was that the one we were supposed to get? I don't want to start unhooking things if it wasn't the right equipment. I appreciate your response.