Nest Learning Thermostat 4th-Gen review: Finally, Apple Home compatibility

Posted:
in General Discussion edited August 27

The biggest update ever to the Nest Learning Thermostat finally supports Apple Home, but it's an expensive offering with some big caveats that might be a problem for some users.

The new circular Nest Learning Thermostat Gen 4 on the wall with the temperature and sunlight coming behind it
Nest Learning Thermostat 4th-gen review



We had been Nest fans for a long time. We appreciate the Nest's futuristic and eco-friendly approach to cooling and heating the home.

It was only after the Google acquisition that we'd move on from the brand. It was clear they would never add HomeKit support and the new products didn't seem very different or innovative.

They seemed focus on lower-cost versions than their flagship.

The new fourth-generation model got us excited again with an updated design, and AI-powered features. Crucially, it finally adds Apple Home support via Matter.

Nest Learning Thermostat 4th-gen review: Design



We're big fans of the updated design aesthetic. It's a large 3.9-inch domed crystal with a 2.7-inch LCD display that mounts to your wall.

Holding the round Nest thermostat with an all-black screen and the small round, white temperature sensor
Nest Learning Thermostat 4th-gen review: You get the Nest thermostat and a remote temperature sensor in the box



It comes in polished silver, gold, or -- as in our case, obsidian. They all look very similar in person as it is only the very edge that seems to be tinted, other than the background of the gold model.

To control it you still rotate the whole device like a giant dial which has a perfect amount of resistance. It feels very smooth as it turns and pressing the whole thing in "clicks" it to select something on screen.

The screen is 600 by 600 resolution which looks sharp up close and the 60 FPS frame rate makes animations look smooth. The blacks are deep, though you can still see a blue tint when all the lights are off.

Nest Learning Thermostat 4th-gen review: Installation



Inside the box you have the thermostat itself plus a temperature sensor. There's also the required mounting hardware.

Historically we haven't had issues setting up smart thermostats. It's been years since we've installed a Nest, but coming from one of the most high-profile the companies we assumed it would be as easy as ever.

Holding the oval mounting plate above a white table
Nest Learning Thermostat 4th-gen review: We needed the mounting plate to hide old screw holes. You may not.



Unfortunately, for us, it was not so easy. We're well-aware that others may not experience issues during installation and many went perfectly fine, but ours was a struggle.

It was a culmination of issues from apparently Nest not working with G-Suite Google accounts, the inability to connect over the network, compatibility issues, and more.

Installing the Nest Learning Thermostat and screwing the mounting bracket into place
Nest Learning Thermostat 4th-gen review: Installation wasn't hard, but we ran into issues



To get ours installed we needed to create a new Google account -- despite our typical G-Suite account with our custom domain working on other Google Home products. We then had to install it via pro mode, and use an Android device we had nearby.

If you read AppleInsider, there is a large chance you don't have an Android device about.

We're hoping this is an isolated experience, but this took far more effort and know-how than it should. Even the error messages were opaque and gave us no clue as to why it was failing.

Regardless, we inevitably made it through the install process and had to use the included mounting plate to cover up some existing holes in the drywall.

Holding the round mounting bracket for the Nest thermostat above a white table
Nest Learning Thermostat 4th-gen review: Wires get connected to their corresponding clips in the mounting bracket



It looks a lot better without the mounting plate, but we'd need to get out the spackle and paint to fix things up. We weren't going there for this review.

The wires fed through the mounting plate and into the back of the mounting bracket. They got securely screwed into the wall and the wires were fed into their corresponding colored clips.

We then turned the power back on and snapped the thermostat into place.

The typical process is it gets discovered in the Google Home app, which also can guide you through the wiring process, before either adds it to your account. Then it highlights the new features and you can set your preferred comfort temperatures.

You do have to use the newer Google Home app for this model, which is disappointing. The design is so sterile and white compared to the Nest app we loved.

Nest Learning Thermostat 4th-gen review: Use and features



The new thermostat carries a price tag of $279 which is $30 more than the last model. But one of the differences is that it now comes with a temperature sensor in the box.

Holding the white nest temperature sensor on the palm of an outstretched hand above a white table
Nest Learning Thermostat 4th-gen review: The new second-gen temperature sensors are nice but don't monitor for motion



These new second-generation sensors can be placed in any room in your home. The thermostat will then intelligently adjust to make sure that room is properly heated or cooled.

They can be used to create schedules around these sensors, like to adjust the temperature to the office during the day, the living room in the evening, and then the bedroom at night.

AI temperature adjustments



The last-gen thermostat was able to learn how you like your home based on your actions. The new one uses AI to also take things like the outside temperature into consideration when adjusting your heating and cooling.

Here in Ohio, we're in between seasons. Temperatures can swing wildly and it's done a great job at making our home feel genuinely comfortable.

Rotating the exterior bezel of the circular Nest Thermostat mounted on the wall with the temperature shown in the middle
It's easy to adjust the Nest thermostat



Speaking of temperature swing, this is something that was frequently an issue with the 3rd-gen model. It's also known as a maintenance band.

This is the basically the delay before it kicks on your system. The idea is changing your system frequently on and off can waste a lot of energy, so it may wait a degree or two before it kicks in.

The problem was this could sometimes be up to 3 degrees and was taking too long. We haven't experienced delays that egregious, but this probably hasn't changed much with this new model.

Google still doesn't allow you to adjust the swing like other thermostats do. It's still a simplified system for mass-market users and not one with very fine granular controls.

Back to AI, this model can help anticipate changes. If it's going to be a high humidity day, it will feel warmer inside and will compensate by cooling the house more than usual.

Similar in the cold months. If it is a sunny day outside, it will then not warm the house as much because it lets the sun help.

The round Nest thermostat with its all-black screen and the white temperature sensor sitting on a blue notebook on a white desk
Nest Learning Thermostat 4th-gen review: We're big fans of the updated Nest design



AI is already being overplayed in products but this feels like a very realistic approach that makes sensible changes to not only save you money, but keep you comfortable.

The new Farsight screen



As we said, the new display looks great. It's a dynamic display that will adjust based on your position to the thermostat.

Cooling the home by Rotating the exterior bezel of the circular Nest Thermostat mounted on the wall with the temperature shown in the middle
Nest Learning Thermostat 4th-gen review: The new Farsighted display looks great



When you're across the room it can show larger digits or images so you can see them but as you approach, it will adjust to show more information.

You can show an analog clock, a digital clock, the outdoor temperature, the target temp, and more. When you're close, it can also show things like outdoor air quality, humidity, and other metrics.

It works super well and it's very cool to see the display adjust for you.

Our favorite of the lot is the outdoor weather face. It can show things like a diffused sun on a sunny day or clouds when it's overcast.

Clouds and lightning showing on the nest thermostat display
Nest Learning Thermostat 4th-gen review: Nest can show live weather reports



We never had bad weather during our testing, but we did see the images during a storm. You'll see bolts of lightning and storm clouds rolling past.

System monitoring



The last big new feature here is system health monitoring. Probably assisted by the new AI backend.

It tracks how well it heats and cools your home and will alert you if something is wrong or out of place.

Maybe it is taking a lot longer to cool your home than it usually takes. Your thermostat would identify this so you don't errantly run your system when it's not doing anything.

We just don't know the limitations of this and what stuff it is able to identify. For example, would it be able to know your system has become inefficient due to an old air filter?

Nest Learning Thermostat 4th-gen review: Matter & Apple Home



Here at AppleInsider, we were of course most excited about the addition of Matter which can bring the thermostat into the Home app for the first time.

The 2020 Nest Thermostat -- not the "learning" version -- gained Matter support earlier this year but this is the first flagship version to adopt it.

We should note, you do need to have a Home Hub to use Matter accessories. That could be an Apple TV or a HomePod.

Anyone who is actively buying this to add it to the Home app though, likely has one of those devices around as they also are what allows you to create automations and control your devices remotely.

Opening the Matter settings on the wall-mounted nest thermostat
Nest Learning Thermostat 4th-gen review: It's easy to get the Nest thermostat into Apple Home with Matter



To add to Apple Home, you put the thermostat into pairing mode by heading to Settings > Matter.

It will give you a QR code that you can scan with the Home app after which it will pair like any other HomeKit accessory.

A phone near the Nest Thermostat with the confirmation screen it was added to the Home app
Nest Learning Thermostat 4th-gen review: Just scan the Matte QR code to add to Apple Home



After adding to the Home app you can change your target temperature, switch modes, or turn it off completely. It can be added to any scenes or automations that you create.

One of the biggest benefits is you can ask Siri to make the adjustments too. "Siri, Set the temperature to 71."

A phone on the armrest of a couch with the new Siri interface pulled up saying it set the thermostat temperature
Nest Learning Thermostat 4th-gen review: Siri can control the Nest thermostat



Our biggest gripe is that the room sensors don't support Matter or Apple Home. They show on the thermostat and in the Google Home app, but are inexplicably not exposed to Matter.

If you did want environmental sensors in a room that you could use with Apple Home automations, you'll need to buy additional ones. That adds up.

A photo across a bed showing the small white Nest temperature sensor sitting on a nightstand
Nest Learning Thermostat 4th-gen review: You can place Nest temperature sensors around your home or mount them to the wall



Others, like those from Ecobee, do support this. Speaking of which...

Nest Learning Thermostat 4th-gen review: Comparing Nest and Ecobee



Ecobee has historically been our smart thermostat of choice. With the addition of the new Nest, it's a bit more of a complicated decision as they each of their benefits and flaws.

Visually, both of them look good but we have to give the win to Nest. It looks so sharp and the interface is so well polished.

Ecobee thermostat mounted on the wall showing the metal sides and current temperature
Nest Learning Thermostat 4th-gen review: Ecobee looks nice, but we think the Nest looks better



The new Farsight display looks more akin to a pixel watch face than a thermostat. Google has learned a lot here and if we went just by looks, we'd install the Nest.

It's also easier to control. Rotating the bezel is so seamless while the touchscreen on the Ecobee can be finicky at times to change as you walk by.

Nest also has a leg up with its AI learning capabilities. Ecobee does have smart algorithms designed to save you money with its "feels like" temperature but its not quite as capable.

After that though, Ecobee steals the show. It has many more features than Nest alongside better integration with other products.

For example, Ecobee is one of only a few products that is able to act as a Siri smart speaker.

If you have a HomePod in your home, you can talk to the Ecobee to control your smart home, answer questions, message people, or almost anything else you can do on a HomePod.

That includes playing music because it can act as an AirPlay speaker. It's small, but great to cast audio through in a pinch.

We'll play music or a podcast through it and our HomePods so it follows us through the home. Similar with watching a movie on Apple TV while we fold laundry and constantly head back to the laundry room.

Ecobee doorbell live feed showing on the Ecobee thermostat
Nest Learning Thermostat 4th-gen review: Your doorbell can show on your Ecobee thermostat screen



Ecobee also has great integration with its other products. When someone rings your Ecobee doorbell it shows right on the Ecobee thermostat.

Nest makes a doorbell but doesn't offer this feature.

Then there are the sensors that we started to briefly touch on. Ecobee has freestanding room sensors as well as contact door and window sensors.

A sliding glass door with a contact sensor attached at the top
Nest Learning Thermostat 4th-gen review: The door and window sensors from Ecobee can show motion and turn off the HVAC when the door is open



The door sensor is great. When the door is open too long, it will pause your HVAC system so you don't waste energy.

Those door sensors also can detect motion and temperature in a room and report it back to the thermostat. If you happen to be a paid member of the security monitoring program, these sensors can be used for that too.

An Ecobee temperature sensor sitting on a wooden shelf
Nest Learning Thermostat 4th-gen review: Ecobee's sensors aren't quite as minimalistic but they are more functional



Then you have the room sensors, which don't look as good as Nest's, but are far more capable. They do show in the Home app and can be used to trigger other automations or actions.

Plus, Ecobee's sensors have a "follow me" feature. Those sensors can track your motion through each room and then can heat or cool the room you're in to your desired temperature.

That means you don't have to have a rigid schedule you have to enter into the app. Instead, it will automatically make you comfortable in any room that has a sensor in it.

Frankly, the fact we can use the Ecobee sensors to trigger devices like our lights is a big win.

Nest Learning Thermostat 4th-gen review:



Google has done a great job with this new Nest thermostat. Even though it's now very expensive for a smart thermostat - more expensive than Ecobee - it can be worth it.

Nest Thermostat showing in the Apple Home app and the temperature being adjusted
Nest Learning Thermostat 4th-gen review: The Home app allows you to further automate and control your Nest thermostat



It's better than before. It can save you money if you planned on buying at least one of the remote sensors on its own.

Overall, it looks great, performs well, and will likely only be improving. We wouldn't be surprised to see new Farsight display faces or improved AI awareness.

The Nest Learning Thermostat Gen 4 box closed on a white table
Nest Learning Thermostat 4th-gen review: The Nest Learning Thermostat Gen 4 is a solid buy



It's one of the few times Matter has been a game changer and actually allows us in the Apple ecosystem to use a flagship Nest product. No Starling hub required.

Scoring the product is hard. Once we got over the whole "needs an Android device if things go bad" problem, it works great. You may or may not have issues, with the likelihood depending on your home, home automation setup, and wiring.

Overall, we give the Nest Learning Thermostat 4th-gen a 3.5 out of 5 score -- assuming you're not totally stymied by installation.

Overall, despite the installation issues, we like it, but there are still situations where we're going to recommend the Ecobee. If you don't need those extra features, the Nest Learning Thermostat 4th-generation is fantastic option to consider.

Nest Learning Thermostat review -- Pros

  • Works with Apple Home thanks to Matter

  • Lovely new design with gorgeous display

  • AI takes its learning abilities to the next level

  • Controls are still intuitive and easy to use

  • Includes room sensor in the box

Nest Learning Thermostat review -- Cons

  • Installation issues

  • Remote sensors don't work in Matter or Apple Home

  • Lacks features found in other premium smart thermostats

  • Expensive

Where to buy the Google Nest Learning Thermostat 4th Gen



The Google Nest Learning Thermostat 4th Gen is available at Amazon and Best Buy, with a retail price of $279.99.




Read on AppleInsider

Comments

  • Reply 1 of 14
    gatorguygatorguy Posts: 24,554member
    My wife was regularly complaining about the master suite being too hot (or cold) at night. This one promised to be smarter, and with an unhappy postmenopausal wife who still has a broken INTERNAL thermostat, it was worth the gamble.

    I received the 4th Gen Nest Thermostat on Friday (bronze which looks great on warm color walls), and took 30 minutes Saturday replacing our 2nd gen which has mostly performed as expected. Because a separate and additional temperature sensor is included in the box, it went in our bedroom as a test. Now the AC is set after 10pm to read temperatures from there. After three days I can confidently say problem solved, it works! 

    My wife is exceedingly happy with the new Nest Thermostat, sleeping better at night and no tossing covers off. It's way worth the upgrade. 

    Then there's some other energy savings things on there I'm less clear on for now, for example "suggestions", one of which popped up last evening. I do know some have not been available before, so I'm still figuring out some new stuff. 


    muthuk_vanalingam
  • Reply 2 of 14
    sflagelsflagel Posts: 838member
    How does this work with multiple rooms, can you set a temperature for each room on one central Nest Thermostat, or do you need one thermostat for each room? The caption under one picture states that you can have multiple sensors, but does the thermostat control each room separately? We have a heat pump with seven zones of underfloor heating, each with its own thermostat at the moment. Would I have to buy seven Nests?
    edited August 27 appleinsideruser
  • Reply 3 of 14
    What about privacy? Using one of these, will I be selling my whereabouts and habits to Google? Can that be avoided without giving up on essential features?
    appleinsideruserwilliamlondon
  • Reply 4 of 14
    DAalsethDAalseth Posts: 2,950member
    What about privacy? Using one of these, will I be selling my whereabouts and habits to Google? Can that be avoided without giving up on essential features?
    One of the several reasons I’m not tempted to buy one. I don’t trust Google. 
    appleinsideruserwilliamlondonecarlseen
  • Reply 5 of 14
    gatorguygatorguy Posts: 24,554member
    What about privacy? Using one of these, will I be selling my whereabouts and habits to Google? Can that be avoided without giving up on essential features?
    This should cover your questions. In a nutshell, your interactions with the Nest Thermostat is siloed from the data used for ad placement. They aren't following you around the house and monetizing when you come and go.

    Here's where there may be an exception, though it would not generally apply to you and Apple Home...
    If you use Google Assistant,(ie you're an Android user) for voice commands they won't use the voice recordings, but may use transcriptions of them for ad purposes. You can opt-out of that, and like me probably should.  Apple on the other hand may also transcribe and use your Siri voice requests for certain business purposes, but never for ads. 

    Outside of Google Assistant voice stuff, privacy is maintained and whatever personal data is stored/collected is used for delivering the Google services you've requested AFAICT. Again, as an Apple user, the voice commands will come via Siri and not Google Assistant, so those privacy concerns don't apply to you

    https://support.google.com/googlenest/answer/9415830
    edited August 27
  • Reply 6 of 14
    This product is trash. It’s too dim. And you can’t control the brightness. Until they fix that with a software update I dont recommend it. 
  • Reply 7 of 14
    gatorguygatorguy Posts: 24,554member
    This product is trash. It’s too dim. And you can’t control the brightness. Until they fix that with a software update I dont recommend it. 
    It's not too dim for me. Placement may be the difference. Mine is in a hallway and no bright window or overhead light directly shining on it, making it very easy to see, especially with the now larger display. 

    Don't believe every review claiming you can't see the display. Amazon for instance has had to moderate their site reviews since so many "OMG dim" comments were coming from those who didn't buy one. I wouldn't need mine any brighter, but I won't go so far as to say some folks might have an issue if their thermostat is in a particularly bright location. 
    edited August 27 muthuk_vanalingam
  • Reply 8 of 14
    Yeah, no multi room, no proportional control of the boiler, not keeping room at set point (too much hysteresis), dubious privacy. I’ll keep my Honeywell Evohome (made Home compatible by Homebridge).
    williamlondonsflagel
  • Reply 9 of 14
    gatorguygatorguy Posts: 24,554member
    Yeah, no multi room, no proportional control of the boiler, not keeping room at set point (too much hysteresis), dubious privacy. I’ll keep my Honeywell Evohome (made Home compatible by Homebridge)
    It is compatible with some multi-room/multi-zone systems. This article explains it.
    https://support.google.com/googlenest/answer/9250906?hl=en#zippy=,one-thermostat-controls-other-thermostats
    edited August 27
  • Reply 10 of 14
    gatorguy said:
    What about privacy? Using one of these, will I be selling my whereabouts and habits to Google? Can that be avoided without giving up on essential features?
    This should cover your questions. In a nutshell, your interactions with the Nest Thermostat is siloed from the data used for ad placement. They aren't following you around the house and monetizing when you come and go.

    Here's where there may be an exception, though it would not generally apply to you and Apple Home...
    If you use Google Assistant,(ie you're an Android user) for voice commands they won't use the voice recordings, but may use transcriptions of them for ad purposes. You can opt-out of that, and like me probably should.  Apple on the other hand may also transcribe and use your Siri voice requests for certain business purposes, but never for ads. 

    Outside of Google Assistant voice stuff, privacy is maintained and whatever personal data is stored/collected is used for delivering the Google services you've requested AFAICT. Again, as an Apple user, the voice commands will come via Siri and not Google Assistant, so those privacy concerns don't apply to you

    https://support.google.com/googlenest/answer/9415830
    The bigger problem I have with this and other "smart" thermostats is that by sending your usage data back to the mothership they're creating a database of when you are and aren't home. In the event of a leak this kind of data could be used for everything from burglaries to corporate espionage. I have Ecobees, but they aren't attached to an Ecobee account and my firewall doesn't allow them to talk to the Internet except for getting the date and time. They still work just fine with Apple Homekit (I can remote-control them via the Home app). The only downside is that they can't pull weather data, and I really couldn't care less about that.
    edited August 27 appleinsideruserkdupuis77
  • Reply 11 of 14
    StrangeDaysStrangeDays Posts: 13,030member
    The “learning” tentpole feature of the product line ended up being entirely useless to me because I just set a schedule and take all the guesswork out of it. Back when I had them anyway, last ones I bought were Ecobees. 
  • Reply 12 of 14
    gatorguygatorguy Posts: 24,554member
    ecarlseen said:
    gatorguy said:
    What about privacy? Using one of these, will I be selling my whereabouts and habits to Google? Can that be avoided without giving up on essential features?
    This should cover your questions. In a nutshell, your interactions with the Nest Thermostat is siloed from the data used for ad placement. They aren't following you around the house and monetizing when you come and go.

    Here's where there may be an exception, though it would not generally apply to you and Apple Home...
    If you use Google Assistant,(ie you're an Android user) for voice commands they won't use the voice recordings, but may use transcriptions of them for ad purposes. You can opt-out of that, and like me probably should.  Apple on the other hand may also transcribe and use your Siri voice requests for certain business purposes, but never for ads. 

    Outside of Google Assistant voice stuff, privacy is maintained and whatever personal data is stored/collected is used for delivering the Google services you've requested AFAICT. Again, as an Apple user, the voice commands will come via Siri and not Google Assistant, so those privacy concerns don't apply to you

    https://support.google.com/googlenest/answer/9415830
    The bigger problem I have with this and other "smart" thermostats is that by sending your usage data back to the mothership they're creating a database of when you are and aren't home. In the event of a leak this kind of data could be used for everything from burglaries to corporate espionage. 

    You're right. That's not an impossibility with any of our connected services, though the circumstances of a leak of that magnitude and depth seem nearly so. Heck, if your cell provider is hacked then every place you go, the time of day, how long you're there, and if there's a pattern to it all is laid out for the ne'er-do-wells. Even your family members may be exposed. Bet you still carry a smartphone and don't worry about it though. 

     Understanding that most Google and Apple user data appears to be tied to a device or service and ID number, in effect siloed and/or anonymized, and not a name and address, the chances of a "leak" from them having any material effect on you is less than that of your cell provider.
    edited August 28
  • Reply 13 of 14
    My house has two floors and two HVAC units. The top floor has a Nest gen 3 and we have a temp sensor…we’re just not using it and after reading the article, I’m an idiot for leaving it in the box. Since the top floor Nest is out on the landing and we usually close our bedroom door, it’s impossible for the Nest to know just what the temp is like in the bedroom. I’ll fix that.

    But the downstairs unit is the one I’m looking to upgrade. It’s a Nest Learning Thermostat gen 1…the original. It’s been on the wall since Nest was founded over a decade ago and didn’t break like some of the early ones. It still works, but I feel we probably could use some of the upgrades of the new model. Some of the Ecobee features are interesting but probably not enough for me to swap out both thermostats for consistency.
  • Reply 14 of 14
    ecarlseen said:
    gatorguy said:
    What about privacy? Using one of these, will I be selling my whereabouts and habits to Google? Can that be avoided without giving up on essential features?
    This should cover your questions. In a nutshell, your interactions with the Nest Thermostat is siloed from the data used for ad placement. They aren't following you around the house and monetizing when you come and go.

    Here's where there may be an exception, though it would not generally apply to you and Apple Home...
    If you use Google Assistant,(ie you're an Android user) for voice commands they won't use the voice recordings, but may use transcriptions of them for ad purposes. You can opt-out of that, and like me probably should.  Apple on the other hand may also transcribe and use your Siri voice requests for certain business purposes, but never for ads. 

    Outside of Google Assistant voice stuff, privacy is maintained and whatever personal data is stored/collected is used for delivering the Google services you've requested AFAICT. Again, as an Apple user, the voice commands will come via Siri and not Google Assistant, so those privacy concerns don't apply to you

    https://support.google.com/googlenest/answer/9415830
    The bigger problem I have with this and other "smart" thermostats is that by sending your usage data back to the mothership they're creating a database of when you are and aren't home. In the event of a leak this kind of data could be used for everything from burglaries to corporate espionage. I have Ecobees, but they aren't attached to an Ecobee account and my firewall doesn't allow them to talk to the Internet except for getting the date and time. They still work just fine with Apple Homekit (I can remote-control them via the Home app). The only downside is that they can't pull weather data, and I really couldn't care less about that.
    I feel the same and set my Ecobee3 up the exact same way. Who cares about weather forecasts on a random thermostat anyhow lol. I just like being able to control it with the Home app, Siri (when she feels like playing nice anyhow lol) and more importantly tying it into my HomeKit automations (Schedules, Temperature Sensors and Geofencing influencing such). All in all, it has been working out great for our main floor use two years running now on a hydronic heating system.
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