The original Nest Thermostat (1st generation). Traditional thermostats tend to waste a lot of energy, mainly heating and cooling your home when no one's there. The Nest is designed to learn from you. As a result, 99% of NEsts have schedules that work with your life, and when life doesn't go according to schedule, Nest can help! Auto scheduling, auto away, Airwave, energy history, the leaf, and time to temperature are all features of the Nest.