Nest unveils a new generation of its popular self-learning thermostat devices that now feature a larger, high-resolution screen (40% bigger than the previous) model and a thinner profile that helps it sit a bit more flush against the wall. It also has a new feature called Farsight that utilizes that big screen, which lights up when you walk into the room and allows you to see key information from a further distance. 

$249, Nest