The 4K Nest camera that was rumored earlier this month has been made official today. It's called Nest Cam IQ, and the "IQ" in the name stems from its facial recognition capabilities. This is an indoor security camera that can tell things apart from humans, but also has the ability to keep track of familiar faces, easily detecting strangers in your home. Thus, when it sends you an alert, it can tell you exactly who it saw, not just that it identified that it's a person. The camera has a 4K sensor and 130-degree field of view. As rumored, you won't get 4K footage - instead HDR is used to...
Source: http://www.gsmarena.com/nest_cam_iq_is_official_with_4k_sensor_facial_recognition-news-25356.php