The Bixby Speaker might be able to detect whether you're in the room - SamMobile
According to the patent’s description by Patently Mobile, the Bixby Speaker could come with an array of sensors, more so than other smart speakers, going as far as being able to detect if a human being is in the room. Well, it’s something any smart speaker can do by keeping the microphone on and listening for human voices, but Samsung might also opt for an infrared sensor that sweeps the room to detect human movement and perhaps even a camera, though the latter might raise privacy complaints similar to the hue and cry around Samsung smart TVs being able to listen in on conversations.