4. Not only can you check in on pets if you have them, but you can also receive notifications that'll alert you to intruders. Many cameras feature smart alert systems that can tell you about out of the ordinary sounds and motion in your household; some cameras feature both a speaker and a microphone for two way communication, and a few even come with sirens and alarms to scare away intruders. If you'd like to add an extra layer of security and safety to your household, consider picking up an indoor security camera!You can always check in on a live stream of your Nest Cam, but some features, including video history, are tied to the subscription based Nest Aware cloud service. For $10 a month, you get all the normal Nest Cam features plus a full 10 day video history, person alerts Nest not only notifies you of motion, but it can try to determine if the shape it's seeing is a person, activity zones instead of tracking motion across the entirety of its view, Nest Cam can pay attention to specific zones, and clips and time lapses if your Nest Cam captures something you've got to share, you can create downloadable video clips. The 147 degree 1080p camera offers the standard night vision and microphone — the only thing it's missing is two way audio, giving you the option to communicate with who or whatever is in your home while you're out and about.