Here`s why you might want human presence detection in your next laptop
(Windows Phone Central)

Best answer: Human presence detection is a relatively new PC feature that allows for touch-free logins of laptops with supporting hardware. It can also automatically lock your laptop when you walk away from it. What is human presence detection? Human presence detection (HPD) is a feature that is becoming ever more prevalent in modern laptops. It might be called something different depending on the manufacturer — HP calls it `Presence Aware,` for example — but the end effect remains the same. Your laptop can sense when you`re sitting or standing in front of it, and it can sense when you walk away. Dell`s Latitude 7400 2-in-1 was the world`s first commercial laptop to employ this feature. Dell calls the platform ExpressSign-In, which is based on Intel`s Context Sensing Technology. Together with an IR camera and Windows Hello, ExpressSign-In (or any other HPD alternative) provides users with immediate and touch-free Windows 10 logins when the laptop is in Standby mode. Just wal...