You already know how awesome the Nest Learning Thermostat is at adjusting to your heating and cooling needs. Now, it’s even more beautiful to behold. The 3rd Gen Nest Learning Thermostat is slimmer and sleeker, with a bigger, sharper display and it even lights up when you enter the room. Visually compelling, brilliantly designed, and made to save energy, the 3rd Gen Nest Learning Thermostat is worth noticing.