It's got your back, HVAC.
System Health Monitor looks out for your heating and cooling system, helps catch many issues early, and can send an alert if something needs attention.¹
Your HVAC heads-up.
When it's time to change your air filter, you'll get an alert based on actual use.¹
The schedule that programs itself.
Smart Schedule learns the temps you like, and when you like them.²
Teaming up with Mother Nature.
Natural heating and cooling learn how the outside temperature affects your home – like it warms up on sunny days.² Then it pauses your system to help you save.
Helps save energy while you're away.
Adaptive Eco helps find an energy-saving temperature based on your home and the weather.² Save when you're away, and come back to a comfy home.
The right temp, right where you want it.
Put the included Nest Temperature Sensor (2nd gen) in the room that matters most. The Thermostat helps make sure it's the exact temperature you want it to be.
Smart is in the air.
To save energy, smart ventilation brings in outdoor air when air quality is healthy and it's most efficient.2,3
It's easy to install.
It is designed for you to install yourself, usually in 40 minutes or less. Just follow the step-by-step instructions in the Google Home app.4
No worries about wiring.
The Power Sharing feature gets enough power from your existing thermostat wiring. It doesn't require a C-wire for installation in most homes.4
Humidity? No sweat.
Humidity Helper can help to keep humidity at the right level so you stay comfortable.¹ And it reduces the risks of condensation and mold. 2,5
Clean energy made simple.
Energy Shift can automatically shift your energy use to cleaner or cheaper times.6
One great app for your whole home.
Control your Thermostat (4th gen) and other compatible devices with the Google Home app.7
¹ 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.
² Google Home app required.
³ Requires a compatible HVAC ventilation system.
4 The Nest Learning Thermostat (4th gen) 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.
5 Requires air conditioner, heat pump, or central humidifier or dehumidifier.
6 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).
7 Remote control and mobile notifications require working internet and Wi-Fi.
System Health Monitor looks out for your heating and cooling system, helps catch many issues early, and can send an alert if something needs attention.¹
Your HVAC heads-up.
When it's time to change your air filter, you'll get an alert based on actual use.¹
The schedule that programs itself.
Smart Schedule learns the temps you like, and when you like them.²
Teaming up with Mother Nature.
Natural heating and cooling learn how the outside temperature affects your home – like it warms up on sunny days.² Then it pauses your system to help you save.
Helps save energy while you're away.
Adaptive Eco helps find an energy-saving temperature based on your home and the weather.² Save when you're away, and come back to a comfy home.
The right temp, right where you want it.
Put the included Nest Temperature Sensor (2nd gen) in the room that matters most. The Thermostat helps make sure it's the exact temperature you want it to be.
Smart is in the air.
To save energy, smart ventilation brings in outdoor air when air quality is healthy and it's most efficient.2,3
It's easy to install.
It is designed for you to install yourself, usually in 40 minutes or less. Just follow the step-by-step instructions in the Google Home app.4
No worries about wiring.
The Power Sharing feature gets enough power from your existing thermostat wiring. It doesn't require a C-wire for installation in most homes.4
Humidity? No sweat.
Humidity Helper can help to keep humidity at the right level so you stay comfortable.¹ And it reduces the risks of condensation and mold. 2,5
Clean energy made simple.
Energy Shift can automatically shift your energy use to cleaner or cheaper times.6
One great app for your whole home.
Control your Thermostat (4th gen) and other compatible devices with the Google Home app.7
¹ 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.
² Google Home app required.
³ Requires a compatible HVAC ventilation system.
4 The Nest Learning Thermostat (4th gen) 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.
5 Requires air conditioner, heat pump, or central humidifier or dehumidifier.
6 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).
7 Remote control and mobile notifications require working internet and Wi-Fi.
Reviews
4.8
4.8 out of 5 rating
59 reviews
100% of reviewers recommend this product.
Could be good..
2 out of 5 rating
arielccc44_2005 . 7 months ago
[This review was collected as part of a promotion.] Unfortunately I was not able to use this device because it was not compatible with my home hardware. I do think it better circumstances it would be a great purchase but if you have an older home it may not work without a lot of work around
influenster.com Originally posted on influenster.com
The next evolutionary step in managing my home.
5 out of 5 rating
MJSOCCER . 9 months ago
Yes, I'd recommend this product.
I recently purchased and installed 3 learning thermostats in my home. It was a fairly easy install and setup and connected seamlessly. So far so good, but since summer hasn't really arrived I'm neither cooling or heating my home currently but will definitely play around with the various scheduling options.
Google Team - 9 months ago
Giving your home the perfect upgrade, MJSOCCER! Thanks for sharing with us.
Features
- Proactively monitors your HVAC system for issues and sends alerts if attention is needed¹
- Sends filter and maintenance reminders¹
- Learns your preferred temperatures and suggests energy-saving adjustments²
- Uses natural heating and cooling to optimize system usage and save energy²
- Sets energy-efficient temperatures while you're away²
- Maintains your desired temperature in the most important room
- Smart ventilation brings in fresh air when outdoor conditions are optimal2,3
- Easy Installation4
- Power sharing feature
- Humidity Helper helps to keep humidity at the right level2,5
- Energy Shift automatically shifts energy usage to cleaner or cheaper time periods6
- Control the thermostat through the Google Home app7
Specs
- Diameter: 3.9 in (98 mm)
- Depth: 1.1 in (29 mm)
- Weight: 5.7 oz (161.8 g)
SKU#
SKU#
GA05551-US
What's in the box
- Google Learning Thermostat (4th gen)
- Thermostat base
- Trim plate
- Steel plate
- Mounting screws and wiring labels
- Nest Temperature Sensor (2nd gen)
Google Learning Thermostat (4th gen) Reviews
Could be good..
2 out of 5 rating
arielccc44_2005 . 7 months ago
[This review was collected as part of a promotion.] Unfortunately I was not able to use this device because it was not compatible with my home hardware. I do think it better circumstances it would be a great purchase but if you have an older home it may not work without a lot of work around
influenster.com Originally posted on influenster.com
The next evolutionary step in managing my home.
5 out of 5 rating
MJSOCCER . 9 months ago
Yes, I'd recommend this product.
I recently purchased and installed 3 learning thermostats in my home. It was a fairly easy install and setup and connected seamlessly. So far so good, but since summer hasn't really arrived I'm neither cooling or heating my home currently but will definitely play around with the various scheduling options.
Google Team - 9 months ago
Giving your home the perfect upgrade, MJSOCCER! Thanks for sharing with us.
Perfect !
5 out of 5 rating
ambrxh_1322 . 1 year ago
[This review was collected as part of a promotion.] The next-gen Nest Learning Thermostat is a sleek, user-friendly device that combines advanced technology with energy-saving features. It learns your temperature preferences over time and adjusts accordingly, helping you reduce energy consumption without sacrificing comfort. Installation is straightforward, and the smart functionality, including remote control via your phone, makes managing your home’s climate easier than ever. It’s particularly great for homes with central heating and cooling systems, though it’s not compatible with all setups. Overall, it’s an excellent investment for those looking to optimize home comfort while saving on energy bills.
influenster.com Originally posted on influenster.com
Beautiful
5 out of 5 rating
meagancf807_2258 . 1 year ago
[This review was collected as part of a promotion.] A beautiful thermostat, very easy to use with a great design. Was compatible with my system and overall, was easy to install. I absolutely love this!
influenster.com Originally posted on influenster.com
yessssss buy it
5 out of 5 rating
reyaa_973497 . 1 year ago
[This review was collected as part of a promotion.] the packaging is niceeee. I have a rose gold aesthetic going on and this fits so perfectly. I love the color and it does the job so well. I would definitely recommend this to others
influenster.com Originally posted on influenster.com
Great thermostat
5 out of 5 rating
iamkrystelg_582308 . 1 year ago
[This review was collected as part of a promotion.] Installation was a bit longer than expected because of the old thermostat unit we had. Luckily we have a friend who knows about this and was able to help. I’ve noticed in month how much we have saved on our energy bill since we can control the temperature thru our phones. Design is very slick.
influenster.com Originally posted on influenster.com
100% recommend
5 out of 5 rating
tonyv10_782536 . 1 year ago
[This review was collected as part of a promotion.] I have low voltage wiring system and radiant baseboard heat and this is 100% compatible with what I have. The ease of install is super easy. My wife loves the design and color. I was able to add it onto my Google home and control it from my phone.
influenster.com Originally posted on influenster.com
Better than previous models, More features.
5 out of 5 rating
1 year ago
[This review was collected as part of a promotion.] Coming from an older model of Nest the installation was super easy. It helps to know what kind of heating/ cooling system you have. I’ve noticed when we change the temp the thermostat says it’s learning. So as time goes on it will learn your behavior. I enjoy the feature where it knows if you are home or not based on our phone locations. This allows us to not have to remind ourselves to turn it off when we are not home, very efficient. I love that it’s gold in shiny. It looks high tech and creates that “smart home” look.
influenster.com Originally posted on influenster.com
Impressive
5 out of 5 rating
spongebabs . 1 year ago
[This review was collected as part of a promotion.] I’m so impressed with the Nest Learning Thermostat. It is absolutely beautiful and I love the display. I also appreciate the room sensor that helps regulate the temp. This model uses AI to analyze your temperature preferences and home/away routines to create a custom heating and cooling Smart Schedule that will help lower your utility bills. I can be at work and am able to change the settings. Saving money and a gorgeous product… what more can I ask for.
influenster.com Originally posted on influenster.com
Nest smart thermostat
5 out of 5 rating
monicad135 . 1 year ago
[This review was collected as part of a promotion.] Nest Learning Thermostat 4 Generation, love love the design, the gold color. Very easy installation just conect cables in the correct place, its gonna help alot to save energy during summer time, when your not at home, etc
influenster.com Originally posted on influenster.com
Google Learning Thermostat (4th gen) FAQs
David . Aug 29, 2025
Will the 4th generation plug in to a 2nd generation base
Answer from Google Team6 months
Hi there. Unfortunately, when upgrading from the Nest Thermostat Gen 2, you’ll need to change out the base as the new thermostat has different dimensions.
Answer from Verizon Customer Support6 months
No, the Google Nest Learning Thermostat (4th gen) display will not directly plug into a 2nd generation base because you must swap the entire base plate, as the base units are not interchangeable between generations, even though the new base uses the same screw holes and wire connections as the old one. You will need to replace the 2nd generation base with the new 4th generation base and re-connect the wires to the new base. -Cryssie