The Bluetooth SIG defines the Internet Protocol Support Profile (IPSP) over BLE, which from my limited understanding is, simplistically speaking, the main part of a BLE access point (it allows BLE devices to exchange IP packets, and if one end had an Internet connection and appropriate routing, could allow the remote end to have a low-bandwidth Internet connection).

But I have no idea if Sidewalk is using that standard profile, or a proprietary alternative (although I suspect the latter).

Bandwidth-wise, Amazon state:



So as Mark mentioned, not an insignificant amount if you are on a restrictive connection.