smart doorbell
smart doorbell is a doorbell or security camera.
Also recorded as smart video doorbell.
Overview
Internet-connected doorbell.
In detail
smart doorbell is a doorbell or security camera.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Smart doorbell”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q28324946: smart doorbell
Consult the source