Name one device that helps with vehicle navigation.

The Global Positioning System (GPS) is a crucial device for vehicle navigation because it utilizes satellite technology to provide accurate location information. It enables users to determine their precise position in real-time and offers directions and routes, making it an essential tool for drivers. GPS can help navigate unfamiliar areas, avoid traffic, and reach destinations efficiently by calculating optimal paths based on current conditions.

In contrast, a compass serves a different purpose—primarily indicating direction relative to the Earth's magnetic poles—and does not provide location-specific navigation like GPS. A radar gun is used for speed detection and enforcement, not for navigation. Meanwhile, a speedometer measures how fast a vehicle is traveling but does not assist in finding routes or locations. Therefore, GPS stands out as the most comprehensive and effective navigation aid for drivers.