3rd-generation Nest Learning Thermostat arrives for $249

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ars.AD.queue.push(["xrailTop", {sz:"300x251", kws:["bottom"], collapse: true}]);Nest has announced a new version of the Nest Learning Thermostat—the third generation of the company's smart home device. The new version of the Nest has a larger, higher resolution screen, slimmer profile, and an updated user interface.

The display is 40 percent larger than the previous Nest, with 25 percent more pixels. (Nest says the display is now up to 229 PPI.)  With the new display, Nest is adding a "Farsight" feature to the thermostat, which turns the display on whenever it detects motion in a room and displays useful information. The Nest will display an analog clock, digital clock, or the current temperature; Nest says it can be read from "across the room." Previously, the Nest display would only turn on when someone was standing in front of it, but "Farsight" is an extension of this that covers the whole room.

"Furnace Heads-Up" is a new feature that checks for shutoff patterns in a heating or forced air furnace that could indicate a problem. Most furnaces will shut off automatically to prevent overheating, and twice a year Nest will scan these patterns and will alert the user if it finds a problem.