Nest's newest camera gains facial recognition and 4K video resolution

Nest's latest camera is packing some pretty impressive tricks under that friendly, unassuming exterior. The camera not only can record ultra high-definition video at 4K resolution, but now has built-in face detection to recognize familiar faces and warn when users when a stranger is in the house. It also features built-in video encryption, night vision, and speakers that are 7x more powerful than the original camera and a three-microphone system brings clearer audio. 

$299, nest.com