Hi All, looking at Gps for new to us MH (Rimor Superbrig 728 ‘04) is there much difference between; OHREX SAT NAV, 7 inch Touch Screen with Bluetooth + GPS Navigation For Car Truck HGV Lorry Motorhome + Pre-loadedNavigation For Car Truck HGV Lorry Motorhome and Aguri Motorhome & Caravan RV720 DVR EU 7" Motorhome and Caravan Sat Nav with Built-in Dash Cam, Wi-Fi and UK & European mapping? They seem to be v much the same apart from camera and price! Any suggestions much appreciated.... thanks All