Smart meters aint so smart...
My folks had a smart meter fitted after a fair bit of bother, only for the installer to turn around and say "I don't have any of the right display units for you to actually use the smart features".
They also found out that while my parents' village has 100% EE 4G coverage thanks to a shiny new Emergency Services Network mast, it has literally 0% coverage from any other network, so said smart meter is therefore less useful than the old one that came out (which had a larger, clearer digital display)