Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable. Wi-Fi.Connectivity Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home; easily program an energy efficient schedule in the Google home app on your Android or iPhone New in box.