Cobra’s Nav ONE 5000 is a GPS device with a 5-inch monitor. It has a handful of features including a built-in database of traffic lights and speed camera locations. As with most gadgets, it’s not without any hitches. The reviewer thinks that the Nav ONE 5000 is a bit big and heavy, and finds that its hands-free Bluetooth/cell phone feature needs some improvement. Though it’s not as portable as some of the other GPS devices in the market, Nav ONE 5000 does make up for it somewhat with its easy-to-read display screen. If you’re looking for a user-friendly GPS device, the reviewer suggests getting the Nav ONE 5000.