Why gps tracker cannot be as small as an Airtag?

GPS trackers cannot be as small as devices like Apple's AirTag due to several technical and functional differences:

GPS Technology Requires More Power: GPS trackers rely on satellite signals to determine their location, which consumes significantly more power compared to Bluetooth-based tracking like in AirTags. GPS modules and the associated antennas need to continuously communicate with satellites, which requires a larger battery, making it difficult to miniaturize the device.

Battery Life: A typical GPS tracker is designed to operate for days, weeks, or even months without charging, especially if it's used in situations like vehicle tracking or asset tracking. AirTags use low-energy Bluetooth technology, which requires much less power and allows for smaller batteries.

Signal Reception: GPS signals from satellites are weaker and require more sophisticated and larger antennas to receive them effectively, especially indoors or in obstructed environments. This contrasts with AirTags, which use Bluetooth signals that don’t require such extensive hardware for reception.

Additional Features: Many GPS trackers, like those from Benbengo, come with features like SOS buttons, removal alerts, and cellular communication, all of which take up space in the device. AirTags are primarily for short-range location tracking using Bluetooth, which simplifies the hardware design.

Data Communication: GPS trackers often have to communicate with servers via cellular networks to transmit their location in real time, requiring SIM cards and additional components. AirTags leverage Apple's network of devices (using Bluetooth) to find the location, which doesn't need cellular modules.

In summary, the need for larger batteries, GPS antenna, and real-time communication modules prevent GPS trackers from being as small as an AirTag.