Tracking devices are tools used to monitor the location and movement of people, animals, or objects. They often use technologies like GPS (Global Positioning System) to provide real-time data about their whereabouts. Common examples include smartphone apps, fitness trackers, and vehicle GPS systems. These devices can be beneficial for various purposes, such as ensuring the safety of children, locating lost pets, or managing fleet vehicles. Many tracking devices also offer additional features, like route history and speed monitoring, making them useful for both personal and commercial applications.