Navigation devices are tools that help people find their way from one location to another. These devices can be standalone gadgets, like a GPS unit, or applications on smartphones that use satellite signals to determine a user's position. They provide directions, maps, and estimated travel times, making it easier to reach destinations. Many navigation devices also include features like real-time traffic updates and alternative route suggestions. Some advanced systems can even integrate with smart cars to enhance driving experiences. Overall, these devices have become essential for travelers, commuters, and anyone needing assistance in unfamiliar areas.