[jojobas]

One could mandate a modular design so that the communication pcb could be replaced, i.e. less e-waste. I wonder if smart meter manufacturers stay in business long enough for it to matter.

[Haemm0r]

Our local suppliers smart meters communicate over the grid (provided the next substation with a beacon is near enough).

[bayindirh]

The one I saw used BT4.2 to talk with the meter, and cellular network to push data to cloud (IIRC).

The video is at https://youtu.be/G32NYQpvy8Q?si=YjQfnY9Ag7YUGJAd