Nest Cam will be your eyes and ears inside the house that see and hear everything even when you are not there! It is a security camera that you can hear and speak through. It can save up to 30 days back on the cloud and it sends you notifications and emails with photos if it sees any movement. Smart, secure and simple!
Vivint's Doorbell Camera is a minimalist doorbell and front door camera that allows for 2-way talk with visitors via Vivint's smartphone app. More useful than a regular doorbell, and more subtle than a security camera, it's the best of both worlds.