My understanding is that the Wi-Fi is expected to be located in the kitchen(?) above a cabinet, and this provides connectivity to all of the devices in the house. If I recall correctly this term started to appear for houses south of 44 and also as I recall these do not have the CAT 5 wiring preinstalled. For these homes there was one coax cables installed from the garage to the kitchen.
However, I completely agree with the previous comment to ask specifically what "smart home" refers to.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV.
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