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Google - Nest Learning Thermostat (4th gen) with Nest Temperature Sensor (2nd gen) - Polished Gold

Model: GA05171-US
SKU: 6587627
$279.99
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Specifications
  • App Compatible
    Yes
    Compatible with 24V Cooling
    Yes
    Compatible with 24V Heating
    Yes
    Works With
    Google Home, Amazon Alexa, Apple Home
    Voice Assistant Built-in
    No
    Touch Screen
    No
  • Key Specs
    • App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
    • Compatible with 24V Cooling: true (Works with low-voltage (24 volts AC) cooling equipment.)
    • Compatible with 24V Heating: true (Works with low-voltage (24 volts AC) heating equipment.)
    • Works With: Google Home, Amazon Alexa, Apple Home (Compatible with or able to be connected to other smart devices or applications.)
    • Voice Assistant Built-in: No (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
    • Touch Screen: false (Touch-screen devices make navigating more intuitive. Using a touch-screen display, you can do things such as tap to select, hold and drag to move items, swipe to scroll, and pinch to zoom.)
    • Multi-Zone Control: true (Thermostats with this feature are able to control temperatures of multiple sections of a home.)
    • Auto-Away Mode: true (Thermostats with this feature can automatically adjust heating or cooling to predetermined settings when the area is empty in order to conserve energy.)
    • Motion Sensing: true
    • ENERGY STAR Certified: true (Devices carrying the ENERGY STAR service mark, such as computer products and peripherals, kitchen appliances, and other products, generally use 20% to 30% less energy than required by federal standards.)
  • General
    • Brand: Google
    • Model Number: GA05171-US
    • Product Name: Nest Learning Thermostat (4th gen) with Nest Temperature Sensor (2nd gen)
    • Color: Polished Gold
  • Dimensions
    • Product Height: 1.14 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 3.85 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 3.85 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 0.35 pounds (The out of box weight of the item.)
  • Power
    • Wire Configuration: C-wire, 3-Wire
    • Power Source: Hard wired, Battery-powered
    • Wire Terminals: W (heating), W2 (heating stage 2), Y (cooling), Y2 (cooling stage 2), Aux (auxiliary) (The available connections on the device for wiring other devices to it. These are often abbreviated or coded due to the space available on the device.)
    • Rechargeable Battery: true
    • Battery Chemistry: Lithium
    • Voltage Type: Low voltage (The kind of voltage used by the device.)
  • Compatibility
    • App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
    • Compatible Product(s): Heat pumps, Air conditioners, Radiators, Furnaces, Hot water systems
    • Compatible with 24V Cooling: true (Works with low-voltage (24 volts AC) cooling equipment.)
    • Compatible with 24V Heating: true (Works with low-voltage (24 volts AC) heating equipment.)
    • Wireless Connectivity: Wi-Fi, Bluetooth (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
    • Frequency Band: 2.4 GHz, 5.0 GHz (Bands may be grouped into categories such as low- and high-band VHF (Very High Frequency), low- and high-band UHF (Ultra High Frequency), or certain frequency channels (measured in MHz or GHz). Generally, higher frequencies transmit information faster but have shorter range than lower frequencies.)
    • Operating System Compatibility: Android, Apple iOS, Mac, Windows
    • Works With: Google Home, Amazon Alexa, Apple Home (Compatible with or able to be connected to other smart devices or applications.)
    • Voice Assistant Built-in: No (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
  • Features
    • Programmable Period: Learning
    • 24-Hour Programming: true (Users can configure various temperature settings for different times of the day over a 24-hour period.)
    • Touch Screen: false (Touch-screen devices make navigating more intuitive. Using a touch-screen display, you can do things such as tap to select, hold and drag to move items, swipe to scroll, and pinch to zoom.)
    • Multi-Zone Control: true (Thermostats with this feature are able to control temperatures of multiple sections of a home.)
    • Auto-Away Mode: true (Thermostats with this feature can automatically adjust heating or cooling to predetermined settings when the area is empty in order to conserve energy.)
    • Backlit: true
    • Date/Time Display: true
    • Remote Sensor Capable: true (Indicates whether the thermostat is compatible with remote sensors. This capability allows for the connection of multiple sensors in order to collect temperature data from several locations in a zone for an overall assessment of the temperature needs.)
    • Number of Remote Sensors Included: 1
    • Outdoor Weather Sensor: true
    • Motion Sensing: true
    • Detector Type: Temperature, Air quality, Humidity
    • Energy Usage and History: true
    • Furnace Filter Change Indicator: false
    • Keypad Lock: false
  • Certifications Listings & Approvals
    • ENERGY STAR Certified: true (Devices carrying the ENERGY STAR service mark, such as computer products and peripherals, kitchen appliances, and other products, generally use 20% to 30% less energy than required by federal standards.)
  • Warranty
    • Warranty - Parts: 2 years
    • Warranty - Labor: 2 years
  • Other
    • UPC: 193575038483

The Nest Learning Thermostat (4th gen) is Google’s smartest, most advanced thermostat yet. It’s a brilliant way to save energy and keep your home comfortable. It learns the temperatures you like, when you like them, even as your routine changes.¹ It gets to know how outdoor temps naturally heat and cool your home to save energy.¹ And it helps make sure your heating and cooling systems run smoothly.²

  • 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.³
  • Better visibility into adjustments.: Smart Schedule learns the temps you like, and when you like them. It 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
  • Beautiful design.: With a 60% larger display⁴ and Dynamic Farsight, you can see info from across the room.¹ Choose the design – a clock, the temp, weather, and more. It automatically adjusts brightness for the best readability or you can adjust manually.
  • Easy control in the Google Home app.: Adjust the temperature on your phone from anywhere¹ or by using your voice.⁵ It’s easy to install yourself³ and it’s Matter compatible for simple integration into your smart home.⁶
  • Manage hot and cold spots.: The Nest Learning Thermostat (4th gen) comes with a 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.⁷
  • 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
  • Looks out for your heating and cooling system.: System Health Monitor helps catch many issues early. And if something needs attention, it can send an alert.⁸
  • Your HVAC heads-up.: When it’s time to change your air filter, you’ll get an alert based on actual use.⁸ And you’ll get seasonal maintenance reminders.
  • Smart is in the air.: To save energy, smart ventilation brings in fresh air when outdoor air quality is healthy and most efficient, like when temps are mildest.¹,⁹
  • Clean energy made simple.: Energy Shift from Nest Renew can automatically shift your energy use to cleaner or cheaper times.¹⁰
Whats Included
  • Thermostat display
  • Thermostat base
  • Trim plate
  • Steel plate
  • Mounting screws and wiring labels
Disclaimers
  • ¹ Requires Google Home app and working internet and Wi-Fi.
  • ² Nest Learning Thermostat can notify you of a potential issue with an eligible HVAC system. It is meant to provide helpful information, not an endorsement, representation, or warranty of any kind about the health of your HVAC system. The information isn't intended to replace a diagnosis by a qualified HVAC professional.
  • ³ The Nest thermostat is designed to work in most homes without a common (C) wire. Check compatibility at g.co/nest/works and see g.co/nest/cwire for details.
  • ⁴ Compared to Google Nest Learning Thermostat (3rd gen).
  • ⁵ Requires a smart device, equipped with Google Assistant or another Matter-certified voice assistant.
  • ⁶ Check https://csa-iot.org/members/ for more information on Matter-certified smart home platforms.
  • ⁷ Estimated energy savings are based on real-world studies and national performance data involving replacement of conventional thermostats with Nest thermostats in the US. Individual savings depend upon many factors, including climate and seasonal changes, home size, occupancy and appliances, as well usage of energy-savings features such as Auto-Away and Seasonal Savings. Actual savings may vary. Learn more at g.co/nest/realsavings.
  • ⁸ Alerts can notify you of a potential issue with an eligible HVAC system. They’re meant to provide helpful information, not an endorsement, representation, or warranty of any kind about the health of your HVAC system. Alerts aren’t intended to replace a diagnosis by a qualified HVAC professional.
  • ⁹ Requires compatible HVAC ventilation system.
  • ¹⁰ Energy Shift makes small adjustments to your Nest Learning Thermostat set points which can shift electricity usage from your heating and cooling system. Learn more at support.google.com/googlenest/answer/10975756?hl=en. Only available in areas served by major continental US grids (see g.co/nest/repwr). Prioritize less expensive energy only available for customers on certain electric utility time-of-use rates (check availability at g.co/nest/retou).

Q: Does the 4th Generation thermostat need the included temp sensor to monitor inside temperature in the same room as the thermostat?

A: Hi there, thank you for your inquiry. The new Google Nest Learning Thermostat (4th Gen) does not require a sensor to function properly. However, for optimal temperature control and comfort, we strongly recommend using a sensor. You may also place the Google Nest Temperature Sensor in a different room to monitor and control the temperature in that specific area.

Q: Does it fit the mounting bracket/wire harness of previous models? Or will I have to install the new one it comes with?

A: Hi Sparkz. Thanks for your inquiry. The Nest Learning Thermostat 4th Gen requires a specific mounting bracket and wire harness that's different from previous models. Please use the ones included with your new thermostat.

Q: When you set a temperature, at what point does the thermostat turn on the AC/heat? For example, if I set the thermostat at 76 degrees. When does the AC come on? When the thermostat reaches 77 or 77.5 or 76.5?

A: Hey there. The Nest Learning Thermostat 4th generation typically activates the AC or heat when the ambient temperature deviates from the set point by a small margin. This margin is often around 0.5 degrees Fahrenheit. It's important to note that this can vary slightly depending on factors like the specific settings on your thermostat, the efficiency of your HVAC system, and environmental conditions.

Q: Is it compatible with apple homekit ?

A: Yes, it is finally compatible with Apple HomeKit using Matter.

Q: If the WiFi goes out can I still control the temperature manually?

A: Great question, Kat. The Nest Thermostat Gen 4 will continue to follow its set schedule even without Wi-Fi. While you won't be able to control it via the app when it's offline, you can still adjust the temperature directly on the thermostat itself. Here’s a link with more information: https://support.google.com/googlenest/answer/9243422?hl=en

Q: Can I lock the temp so no one else can change it

A: Great question. Yes, the Nest Thermostat Gen 4 can be locked to prevent people from changing settings or changing the temperature outside of a restricted range with the thermostat — here’s how: 1. Open the Home app 2. Tap Favorites or Devices . 3. Tap your device's tile and then Settings. 4. Tap Lock > enter a 4-digit PIN number > tap Next. Here’s a link with more details: https://support.google.com/googlenest/answer/9247319?

Q: Does this thermostat has humidity control?

A: Thanks for the question, Jeffrey. Yes, the Nest Thermostat Gen 4 can manage your humidity levels while you're away from home. If you have a humidifier or dehumidifier system connected to your Nest thermostat, you can use features like Smart Humidity and Cool to Dry to adjust the humidity level. Here’s a guide for more information and tips: https://support.google.com/googlenest/answer/15262141

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Pros for Google - Nest Learning Thermostat (4th gen) with Nest Temperature Sensor (2nd gen) - Polished Gold
Ease of Use, Overall Performance, Design, Installation, Temperature SensorOverall Performance, Ease of Use, Installation, Design, Air Quality MonitoringEase of Use, Overall Performance, Installation, Design, Remote ControlThere were no pros for this product
Cons for Google - Nest Learning Thermostat (4th gen) with Nest Temperature Sensor (2nd gen) - Polished Gold
Connectivity, CompatibilityTemperature Accuracy, App UsabilityConnectivity, Compatibility, Battery Life, User InterfaceThere were no cons for this product

Specs

Reviews

Customers are saying

Customers often highlight the Nest Learning Thermostat's overall performance and ease of use as significant advantages. The design and temperature sensor are also well-received, with users appreciating their modern aesthetic and functionality. Installation is generally considered straightforward. However, some users have reported connectivity issues and uncertainty regarding compatibility with other Nest products.

This summary was generated by AI based on customer reviews.

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Wish I'd bought these sooner

    Being a non-handy new home-owner I had it in my head that replacing my legacy smart thermostats - which I could never get to work properly - would require the help of a professional so I just kept putting it off and suffering the cost and comfort consequences. Finally, seeing the headlines about the 4th gen Nest got me to do a quick google and sure enough it seemed my wiring would be compatible AND that I could even do it myself. So I bought one Nest, followed the instructions and within maybe 35 minutes had it up and running. It was so easy to install, and also to program! The very next day I bought my second one (which I was able to install in at most 15 minutes). Plus two sensors. Two weeks in, everything is working exactly as it should. And they look beautiful and the weather forecast display is genuinely useful. Tremendous!

    This review is from Google - Nest Learning Thermostat (4th gen) with Nest Temperature Sensor (2nd gen) - Polished Obsidian

    Posted by SANYC

  • Rated 5 out of 5 stars

    Looks amazing

    This new gen of nest looks sleek and I love the details on the screen. Easy to install the only thing is you need to use the google home app to control it not the nest app.

    This review is from Google - Nest Learning Thermostat (4th gen) with Nest Temperature Sensor (2nd gen) - Polished Silver

    Posted by Jeff

  • Rated 5 out of 5 stars

    Simple, easy, and worth every penny!

    This is one of the best smart thermostats I’ve ever bought and used. I installed it myself, and it was very easy and straight forward to follow the directions to install. As an added bonus, this is compatible with my security system, so I can create custom scenes utilizing these two things together (such as automatic temperature changes when leaving/arriving). Im also a fan of being able to track our HVAC usage. A new feature with this is the secondary sensor which has been nice to have, and has all sorts of convenient benefits. Overall VERY happy with this. Ive had my thermostat about a month now with no issues.

    This review is from Google - Nest Learning Thermostat (4th gen) with Nest Temperature Sensor (2nd gen) - Polished Obsidian

    Posted by TL00

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