Nest’s smartest, most advanced thermostat yet, the Google Nest Learning Thermostat (4th gen) is a beautiful, brilliant way to save energy, keep your home comfortable, and help make sure your heating and cooling systems are running smoothly | The Nest Learning Thermostat (4th gen) works with most 24V systems, including gas, electric, oil, forced air, heat pump, and radiant, and no C wire is required for installation in most homes; visit the Nest Compatibility Checker for more info | It comes with the Nest Temperature Sensor (2nd gen) and works with any Nest Temperature Sensor; put a sensor in any room to help manage hot and cold spots, and use the Google Home app to set the temp it should reach at a certain time of day[1] | The Nest Learning Thermostat (4th gen) can help save an average of 12% on heating bills and 15% on cooling bills[2] | With natural heating and cooling, the Nest Learning Thermostat (4th gen) learns how the temperature outside affects the temperature inside, and pauses your system to help you save[1] | Automatically adjusts display brightness to deliver the best readability. You can also manually adjust brightness | The thermostat is made with premium materials in elegant finishes; with a 60% larger borderless display and Dynamic Farsight, you can see info from across the room[1,11]; choose the design, like a clock, the temp, weather, and more | Smart Schedule learns the temps you like, and when you like them; it suggests tweaks to help you save, and you can accept them in the app[1]; and Adaptive Eco helps find an energy-saving temperature, based on the temperature outside[1] | The thermostat is easy to install yourself, usually in 40 min or less[5]; you can control it and your other compatible smart home devices in the Google Home app[1]; or change the temp just by using your voice with Alexa or a Nest smart speaker[3] | Please refer to the “Legal” section below for all applicable legal disclaimers denoted by the bracketed numbers in the preceding bullet points (e.g., [1], [2], etc.)