Today's voice assistants and smart devices can act like salespeople who knock on your door.
Some tenants prefer to keep their apartments dumb.
Startups are making firearms that only registered owners can use, but the weapons face a tough road to market.
Amazon’s purchase of Ring, a maker of video doorbells, could help it solve its problems with package theft by making it easier for packages to be delivered inside people’s homes. But Ring’s greater value may come in the extra juice…