Apple, Google, and Amazon are the three major players in smart home ecosystems, but it can be hard to choose between them. Here's everything you need to know to pick the brain behind your smart home.

Nest Cams are underpowered and cloud-reliant. I wanted something more private, more powerful, and that gave me more control.

Features include zoom-and-crop up to 6x, three hours of 10-second event previews, and one-hour local storage backup for Wi-Fi ...