The Nokia 5800 Navigation Edition shares many of the same features as the XpressMusic version of the 5800, but as its name suggests, the focus of the phone is on navigation. It ships with Ovi Maps with free voice-guided directions and other premium content as well as accessories for the car, including a cradle and mount and car charger. The phone costs $299, which isn't bad considering you get all those navigation features and it's unlocked.
The Nokia 5800 measures 4.37 inches tall by 2.03 inches wide by 0.61 inch thick and weighs 3.84 ounces. It's slightly on the thicker side, but it's still light, so it won't weigh you down in your travels.
The 5800 features a 3.2-inch resistive touch screen with a 640x360-pixel resolution and support for 16 million colors. The display is clear and bright, but it washes out slightly in bright sunlight and the smaller screen size can sometimes make it hard to read maps in the car.