For many car owners, GPS trackers have become a major concern, helping them check if their vehicles have been moved and ensuring the safety of their routes. These devices capture location data via satellite signals and use mobile networks for data transmission, enabling real-time tracking and playback of historical routes. They typically have a built-in SIM card, and once connected to a communication network, they upload information such as vehicle location, speed, and dwell time to a cloud platform, which users can view anytime via a mobile app. Some high-end models also support low battery alarms, geofencing, and vibration sensing, sending immediate alerts if the vehicle moves abnormally. Recording functionality depends on whether the device has a microphone; however, it's important to note that recording raises privacy concerns, and its use in public spaces or without the knowledge of others may pose legal risks. Overall, GPS trackers technically support vehicle tracking and anti-theft alerts, making them highly practical, especially suitable for rental car owners, car-sharing owners, or private car owners worried about theft.

