A smart doorbell is an excellent addition to any smart home setup. It's both a chime and, in many cases, a camera that can send feedback directly to your phone, even if you're not in your home. Plus, ...

Amazon is turning the humble doorbell into a front-door concierge, letting Alexa+ pick up the call, hold a natural conversation and decide what to do with the person on your porch. Instead of a canned ...