Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Obsidian
Condition: New
Buy Now, Pay Later
As low as
$45.00
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Wednesday, Jul 29
Recently Viewed
Color: Polished Obsidian
Features
- Nests 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]
- Savings you can count on: The Nest Learning Thermostat can help save up to 31% on heating and cooling bills[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; 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], its easy to install yourself and its 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
- 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 youre 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.)
Description
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.
Brand: Google
Model Name: Google Nest Learning Thermostat (4th Gen)
Product Dimensions: 0.04"D x 0.15"W x 0.15"H
Special Feature: Auto Away Mode, Auto Scheduling, Temperature Display
Additional Features: Auto Away Mode, Auto Scheduling, Temperature Display
Specific Uses For Product: Air Conditioner
Temperature Control Type: Heating,Cooling
Connectivity Technology: Wi-Fi
Power Source: Battery Powered
Voltage: 24 volts
Display Type: Touchscreen
Control Type: Button Control
Control Method: App
Connectivity Protocol: Wi-Fi
Mounting Type: Wall Mount
Number of Batteries: 1 CR2 batteries required. (included)
Color: Polished Obsidian
Shape: Round
Product Style: English
Brand Name: Google
Model Name: Google Nest Learning Thermostat (4th Gen)
Included Components: Thermostat Display, Thermostat base, Trim plate, Steal plate, Mounting screws and wiring labels, Nest Temperature Sensor (2nd gen)
Model Number: CE911542
UPC: 193575038476 193575040189
Manufacturer: Google
Unit Count: 1 Count
Item Type Name: Thermostat
Manufacturer Part Number: GA05169-US
Item Dimensions D x W x H: 0.04"D x 0.15"W x 0.15"H
Item Weight: 161.8 g
Material Type: Aluminum
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jul 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Color: Polished Silver
I was trying to determine if I was having an issue with my thermostat, my furnace.. or both (yikes). I had an Ecobee, which had been installed for roughly 10 years. Worked great, then I started having issues with getting heat to turn on in my house as it should. Process of elimination, I opted to try Google Nest. I LOVE this. Massive upgrade to what I had, easy to install, and the issue I was having became clear to be the thermostat and not my furnace. In fairness, it likely just needed to be upgraded, but I have other Google Home items and have heard good things about Nest. I have been very happy with it already. And unlike the Ecobee where I need to set schedules for 'home' vs 'away', etc.. this is a learning thermostat, so it naturally learns when you aren't home and just turns the heat off (within reason - I haven't woken up to my house being below 50 degrees or anything). If I am gone all day, the moment I walk in the door and the Nest "sees" me.. it kicks on to heat. It's also very sleek looking, but super easy to use so it doesn't come off super techy or anything. Highly recommend!
...
show more
Reviewed in the United States on January 23, 2026 by Ginger S
Color: Polished Silver
The Google Nest has been a great thermostat for me. It replaced a wall unit in a house I purchased that was very old but still functional. Setup was relatively easy, as well as getting the wires into the thermostat itself! The ability to control your homes temperature from your phone, as well as schedule home temperatures for sleep, daytime etc is a game changer. You can also customize eco mode for when you’re away. Over time, the cost savings per month will pay for itself in a few years compared to a cheaper thermostat. I highly recommend!
...
show more
Reviewed in the United States on July 8, 2026 by Donald Miley
Color: Polished Obsidian
Upgrading to this thermostat has completely changed how I think about home temperature control. It's not just a programmable thermostat – it's actually smart in ways that make a real difference in comfort and energy savings. The learning capability is impressive. After the first week or so, it started anticipating when I wanted the temperature adjusted without me having to do anything. It picks up on your patterns and creates a schedule automatically based on how you actually use your home. That means you don't have to spend time programming complicated schedules or remembering to adjust things manually. It just figures out what you want and does it. The display is gorgeous. It's got this clean, modern look that actually adds to your home's aesthetic rather than being an eyesore like traditional thermostats. The screen is bright and easy to read from across the room, and the interface is incredibly intuitive. When you walk up to it, it lights up and shows you the current temperature. The whole interaction feels polished and well thought out. What sets this apart from other smart thermostats is how well it works with the temperature sensor that's included. You can put the sensor in the room where you spend the most time, and the thermostat will prioritize that room's temperature when making decisions. This is huge if your home has uneven heating or cooling. Instead of managing the temperature based on where the thermostat is mounted, it can focus on keeping comfortable the spaces where you actually are. The energy savings are noticeable. The system is smart about when to heat or cool, and it's not wasting energy when you're not home. It can detect when you've left and automatically adjust to save energy, then bring things back to your preferred temperature before you return. Over time, those savings add up, and you can actually see the impact in your energy bills. Remote control through the app is seamless. Whether you're at work, traveling, or just in another room, you can check and adjust your home's temperature from your phone. The app is well-designed and responsive. It gives you detailed information about your energy usage and even provides reports on how efficiently your system is running. That level of insight is something you just don't get with a traditional thermostat. Installation was straightforward. The instructions are clear, and if you're comfortable with basic DIY projects, you can handle it. There's also a compatibility checker on their website to make sure it'll work with your HVAC system before you buy. Once it's installed and connected to WiFi, the setup wizard walks you through everything step by step. Voice control works perfectly with both Alexa and Google Assistant. Being able to adjust the temperature with voice commands is one of those conveniences that seems small but becomes something you use all the time. "Hey Google, set the temperature to 72" is so much easier than walking over to adjust it manually. The Nest Aware features give you additional insights into your home's environment. You get alerts if there are unusual temperature changes, which can help you catch problems with your HVAC system early. The system also provides tips on how to optimize your settings for better efficiency. Build quality is excellent. This feels like a premium product from the moment you take it out of the box. The materials are high quality, the engineering is solid, and everything about it feels durable and well-made. It's clear this was designed to last and to look good doing it. The fourth generation improvements are noticeable if you've used previous versions. The display is better, the sensor integration is more sophisticated, and the overall performance is smoother. Even if you haven't used an older model, you're getting the benefit of years of refinement and improvements. For anyone serious about smart home technology or just wanting better control over their heating and cooling, this is an investment that pays off. The combination of learning capabilities, energy savings, remote access, and the included temperature sensor makes this a complete solution. It's made managing home temperature effortless while actually reducing energy costs. Really impressed with how well this performs.
...
show more
Reviewed in the United States on February 1, 2026 by S
Color: Polished Gold
This thermostat has been a fantastic upgrade for my home. Installation was straightforward, the display looks great, and the included temperature sensor helps keep the rooms I use most comfortable. The smart features are easy to use and have made managing my home's temperature much more convenient. Highly recommended!
...
show more
Reviewed in the United States on July 16, 2026 by Dennis P.
Color: Polished Obsidian
When one of our 3rd Gen Nest Thermostats stopped working, I decided to replace it with a 4th Generation Nest unit. Oddly, the mounting hardware for the 4th Generation is completely different from the 3rd Generation, which is annoying. The wiring backplate is incompatible, as the 4th Generation has a different electrical connector to the thermostat. One nice thing about the new backplate is that there is a light built into the bubble level which signals voltage on the Rh or Rc wires from the HVAC unit, implying you won't need a dedicated C wire for power. Unfortunately, this is many times not the case for the 4th Generation, lit bubble level or not. When I properly mounted and connected the 4th Generation thermostat, the setup app on my phone reported that there was "no power" on the R wire, even though the bubble level was lit, and I could measure the voltage on a multimeter. There was no way to get around the error message in the app. A call to Google support was completely useless. The support person clearly didn't know why the setup app falsely reported "no power", or whether or not the 4th Generation thermostat required higher voltage on the R wires than the 3rd Generation thermostat for operation without a C wire. An internet search revealed numerous people posting on Reddit and other web sites of the same issue I was having. How could Google support not be aware of this? Depending on your view, the difference between the R wire voltage requirements for the 4th Generation from the 3rd Generation thermostats is either an undocumented design change, or a design flaw. Personally, I consider it a significant design flaw, especially that it is not documented in the setup instructions, and there is no warning of this anywhere in Google's documentation. After spending about two hours removing the 3rd Generation mount, installing the 4th Generation mount, waiting for the callback from Google, and figuring out the root cause myself, I unmounted the 4th Generation Nest, packaged it back up, and returned it. I ordered a new 3rd Generation Nest from Amazon, and it works flawlessly with the HVAC unit. One attraction of the 4th Generation Nest is that the "maintenance band", the temperature variance range at which the AC compressor cycles on and off, is manually programmable, while on the 3rd Generation Nest it is not. There have been complaints that the 3rd Generation Nest's maintenance band is only two degrees F wide, which in some climates and homes cycles the compressor too often, and is blamed for excess wear and premature failure on the compressor. (AC units and heat pumps both use compressors.) So if you have a C wire in your compressor-based system, I recommend trying to use a 4th Generation Nest. Another trick which works with both generations is to use a remote sensor in a different part of the room or another room where the ambient temperature doesn't vary as quickly, to reduce compressor cycling. I use this trick for our 3rd Generation Units, and it also works for 4th Generation thermostats. Note that using a remote sensor this way may require some experimentation to get the desired result, while the feature to manually adjust the maintenance band makes it quicker and simpler. I really like the Google Nest thermostats when they're working the way they're supposed to, but the lack of backward functional capability from the 3rd Generation model to 4th Generation model is inexcusable, since there's no warning about it. And Google support is ineffective in helping less technical buyers. The least Google could do is document the issue properly on their web site.
...
show more
Reviewed in the United States on May 24, 2025 by IMR
Color: Polished Obsidian
Better than that old T we got with the house. Super easy to use and the multiple sensor function is great feature. Has helped with efficiency in the house. Wifi feature works great. Display is super easy to use and you can use your phone. Noise level is none.
Reviewed in the United States on May 22, 2026 by Pablo Espejo
Color: Polished Silver
Only reason I had to buy a new one is cause Google was shameful and discontinued support and Alexa functions on the previous version. I do like the look of this one though it does give many options for the screen, which is pretty cool. There’s a lot of information you can choose to have a display.
Reviewed in the United States on July 18, 2026 by Clay S.
Color: Polished Silver
I don’t know why someone wouldn’t want a smart thermostat! This is our second one, first one we left behind at the old house. These are easy to install, even for someone not overly handy. The display is clear and bright. Works great from the app. This is amazing to be able to cool or heat my house before I get home from the app. It has definitely saved me money on utilities because I have mine set to go into away mode when my phone leaves the house. Great value for the money.
...
show more
Reviewed in the United States on June 2, 2026 by Matthew lehmkuhl