"The Nest Learning Thermostat (4th gen) is Google’s smartest, most advanced thermostat yet. It’s a beautiful way to save energy. It learns the temperatures you like, when you like them, even as your routine changes.[1] And it helps make sure your heating and cooling systems run smoothly. 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[4] Improved compatibility: It 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[5] Easy control in the Google Home app: Adjust on your phone from anywhere[1] or by using your voice with Alexa, Siri, or Google Assistant smart speaker[3], it’s easy to install yourself and it’s Matter compatible for simple integration into your smart home[5] Beautiful design: With a 60% larger display[11] and Dynamic Farsight, you can see info from across the room[1]; choose the design, like a clock or the weather; it automatically adjusts brightness for the best readability or you can adjust manually Better visibility into adjustments: Asks for permission to make schedule changes to help you save energy; you'll receive notifications in the Google Home app, and you can view and accept changes with a tap[1] Manage hot and cold spots: It comes with the Nest Temperature Sensor (2nd gen) and works with any Nest Temperature Sensor; put a sensor in any room and use the Google Home app to set the temp it should reach at a certain time of day Savings you can count on: The Nest Learning Thermostat (4th gen) can help save an average of 12% on heating bills and 15% on cooling bills[2] New natural heating and cooling: Your thermostat learns how the temperature outside affects the temperature inside (for example, when the sun coming through the windows will heat the house naturally) and pauses your system to help you save[1] New Adaptive Eco: It uses the temperature outside to help find an energy-saving temperature when you’re away and returns to a comfortable temperature within an hour of your return[1] 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.) Date First Available: August 6, 2024 Shape: Round Part Number: CE911542 Specific Uses For Product: Residential Heating and Cooling, Commercial Heating and Cooling, Smart Home Environment, Energy Efficient Spaces Power Source: Battery Powered Included Components: Nest Temperature Sensor (2nd gen) Size: One Size Controller Type: Apple HomeKit, Amazon Alexa ASIN: B01HHQZHRK UPC: 193575040172 193575038483 Material Type: Aluminum Batteries: 1 CR2 batteries required. (included) Special Features: Learning Algorithms for Optimized Comfort and Efficiency Finish Types: Polished Item Package Quantity: 1 Number of Batteries: 1 CR2 batteries required. (included) Display Type: graphical lcd, ips Control Type: Button Control Batteries Required?: Yes Backlight: Yes Voltage: 24 Volts Item Height: 3.9 millimeters Manufacturer: Google Style: English Temperature Control Type: Heating, Cooling Item Type Name: Thermostat Finish: Polished Finish Type: Polished Manufacturer : Google Special Feature: Learning Algorithms for Optimized Comfort and Efficiency Batteries Included?: Yes Specification Met: Matter Usage: Residential Heating and Cooling, Commercial Heating and Cooling, Smart Home Environment, Energy Efficient Spaces Battery Cell Type: Lithium Model Name: Google Nest Learning Thermostat (4th Gen) Control Method: App Color: Polished Gold Item model number: CE911542 Material: Aluminum Mounting Type: Wall Mount Model Number: CE911542 Certification: Matter Brand Name: Google Brand: Google Product Style: English Additional Features: Learning Algorithms for Optimized Comfort and Efficiency Display Style: graphical lcd, ips Item Weight: 161.8 Grams"