An anti-theft comparison helps vehicle owners evaluate GPS trackers, AirTags, alarms, immobilizers, steering locks, and other security technologies. Dedicated GPS trackers can provide cellular location updates, geofencing, movement alerts, and route history, while Bluetooth trackers depend on nearby compatible devices. Physical security measures can help deter theft, while tracking technology can support recovery. Combining multiple security layers is often more effective than relying on one anti-theft device.