Nest introduces the Hello, its first video doorbell
 

It was just a few weeks ago when Nest introduced the E, a budget version of its smart thermostat, and just a couple of months before that when it unveiled the new Nest Cam IQ. But the company is not done with announcing new products just yet. In an e...

https://www.engadget.com/2017/09/20/...ideo-doorbell/