The Nest Learning Thermostat is a programmable smart thermostat that learns your schedule and the temperatures you like. It programs itself to help you save energy and stay comfortable. It comes with a home/away assist that automatically adjusts itself to an eco temperature after you leave so you don't heat or cool an empty home. The nest leaf appears when you choose a temperature that saves energy. With energy history, you can check just how much energy you use and why. Its remote control allows you and your family members to change the temperature from anywhere, may it be your phone, laptop, or tablet.