Difference Between Bluetooth Anti-Lost Device and GPS Tracker

Bluetooth Anti-lost Device:

Using bluetooth transmit distance to judge if the article is lost. Usually its valid distance is 10-25 meters. Its range is relative small.

It is mainly used to anti lost.When the article with device is over valid distance,the device and mobile phone will both alarm.

GPS tracker:

It uses GPS satellite position.Real time sending locating information to users'computers or mobile phones.So the user can monitor in real time.

Compared to bluetooth anti-lost device,it has more wide valid range.