GPS devices are tools that help people find their way using signals from satellites in space. They can be found in cars, smartphones, and handheld units. By receiving signals from multiple satellites, a GPS device can determine its exact location on Earth, making it easier to navigate to a destination or explore new areas. These devices are especially useful for travelers and outdoor enthusiasts. With the help of GPS technology, users can access maps, get directions, and even track their routes. Many smartphones come with built-in GPS, allowing users to use apps like Google Maps or Waze for real-time navigation.