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We Want You to Know

Amazon Smart Thermostat doesn't have a speaker or microphone. For voice control, use a compatible Alexa-enabled device, like an Echo (sold separately), or the Alexa app.

Before purchasing, use the link “check compatibility” to see if the thermostat will work in your home and to determine if your home needs a C-wire power adapter.

Amazon Smart Thermostat requires a C-wire or a power adapter kit. Use the compatibility checker to see if your home has one already. Guided installation instructions are included in the Alexa app.

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

4.1 4.1 out of 5 stars 22,292 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice

To see product details, add this item to your cart. You can always remove it later.
FREE Returns
Rebates starting at $30 available from energy providers for 20149. Terms apply. See rebates

Compatibility information

Although Amazon Smart Thermostat is compatible with most homes, we recommend checking compatibility before purchasing. Check compatibility

no C-wire Adapter
Thermostat
This item is certified to work with Alexa
WORKS WITH ALEXA
Add voice control by combining with an Alexa device
  • This item
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  • “Alexa, increase the thermostat.”

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Purchase options and add-ons

  • Smart upgrade - Amazon Smart Thermostat is an easy way to switch from a traditional thermostat and help reduce energy usage.
  • Save money - After purchase, Amazon will send you an email with details about rebates that may be available from energy providers in your area. Explore rebates above.
  • Save energy - According to EPA estimates, ENERGY STAR certified thermostats save an average of $50 on yearly energy bills.
  • Automatic comfort - Alexa can do the programming for you, updating the temperature to keep you comfortable.
  • On-the-go control - Let Alexa set the temperature, or set it yourself from anywhere with the Alexa app.
  • You can do it - The Alexa app will guide you through the installation process, but customer service is always available.
  • Reliable - Made with Honeywell Home Thermostat Technology and backed by 130 years of experience.


Meet
Amazon Smart Thermostat

Follow the guided DIY installation

You can install Amazon Smart Thermostat on your own by following the step-by-step instructions in the Alexa app. If you need any help, contact 24/7 customer service via phone, chat, or email.

If you prefer, you can also hire Amazon Home Services or a local HVAC tech to do the installation instead.

Automatic comfort



Every day is an earth day

You don't have to be an environmental scientist to make sustainable choices. We considered sustainability in the design of this thermostat. Here's how:

Low Power Mode (Wall Powered Devices)

Renewable Energy

Amazon Smart Thermostat can automatically prioritize energy usage when CO2 usage may be lower with Alexa. Learn more here.

Materials

Materials

34% post-consumer recycled plastics in the product and accessories (Does not include installation tool). Amazon Smart Thermostat includes 0% bioplastics.

Alexa

Energy Dashboard

Understand the energy usage of select Echo and Alexa-connected devices with the energy dashboard in the Alexa app. Learn more here.

Packaging

Device Packaging

93% of this device's packaging is made of wood fiber-based materials from responsibly managed forests or recycled sources.

Energy Efficiency (Battery Powered Devices)

Energy Efficiency

This product was designed for energy efficiency, earning the ENERGY STAR certification.

Trade-In or Recycle

Part With Purpose

There may come a time when you want to recycle your device. Explore options with Amazon Second Chance.

Technical Details

Amazon Smart Thermostat

Amazon Smart Thermostat

Size

3.56 x 3.56 x 0.84 in (90.4 x 90.4 x 21.4 mm)

Weight

3.86 oz (109.5 g) Actual size and weight may vary by manufacturing process.

Model number

S6ED3R

Compatibility

Compatible with most 24V HVAC systems (i.e. conventional force air, heat pump, radiant boiler). Not compatible with 110-240V HVAC systems (like electric baseboard heat).

Requires a C-wire power or power adapter kit (sold separately). Most homes have a C-wire. Click check compatibility to see if your home is compatible or requires a power adapter.

Certifications

ENERGY STAR – For EPA's ENERGY STAR requirements, see energystar.gov.

ECOLOGO Silver – Select replacement parts are available for 3 years after the end of production of your Amazon Smart Thermostat. Learn more here.

In the box

Amazon Smart Thermostat, installation tool, wall plate, cosmetic plate, and quick start guide.

Network connectivity

2.4 GHz only, 802.11 b/g/n. Does not support 5GHz networks or connecting to ad-hoc (or peer-to-peer) wifi networks.

Audio

No far-field microphone; Alexa-enabled device required for voice control.

On-device control

3 touch buttons on device (Temperature Up, Temperature Down, Select/Mode).

On-the-go-control

Alexa app, voice control, on-device, and Echo device compatible.

Installation method

Guided installation in the Alexa app. (You may need a power drill, 3/16” drill bit, and a level.)

Setup technology

Amazon wifi simple setup enables customers to connect smart devices to their wifi network in a few easy steps. Wifi simple setup is another way Alexa is always getting smarter. Learn more here.

App-based features

Option to control with both the Ring app and Alexa app. Features include indoor humidity sensing, schedules (up to seven time periods can be configured, each day of the week), emergency heat mode, vacation mode, energy saving incentives, energy dashboard monitoring, and automatic air filter ordering in the Alexa app.

Thermostat Hunches

Enable Thermostat Hunches in the Alexa app. If Alexa has a hunch nobody is home or everyone is asleep, she can adjust the thermostat automatically. Learn more about Hunches.

How do Hunches work?

When your phone leaves your home area and nobody interacts with Alexa for a while, Alexa might have a hunch nobody’s home. If no one interacts with Alexa for a while at night, she might have a hunch everyone is asleep. When someone interacts with Alexa or uses smart devices, she can tell that someone is home. Alexa learns from your daily interactions and improves over time.

You can also help Alexa know when you go to bed or leave home by saying, “Alexa, goodnight.” or “Alexa, I’m leaving.

Support

Click here to get help using and troubleshooting common issues with Amazon Smart Thermostat. To see questions and answers from other Amazon customers, click here to visit the Amazon Digital and Device Forum.

Warranty and service

1-year limited warranty and service included. Use of Amazon Smart Thermostat is subject to these terms.

Generation

Amazon Smart Thermostat - 1st Generation - 2021 release

Standby Power

0.89 Watts

Product guides and documents

For more information, please see the Amazon Smart Thermostat Product Guide.

Climate Pledge Friendly

Climate Pledge Friendly

Products with trusted sustainability certification(s). Learn more

Product Certification (1)

certified products meet standards that can reduce the environmental impact of one or more stages of the product lifecycle.

Looking for specific info?

Customer reviews

4.1 out of 5 stars
4.1 out of 5
22,292 global ratings

Customers say

Customers like the ease of installation using the thermostat. They say it's user-friendly, and convenient. Customers say it blends well with any decor and is a decent entry-level thermostat. However, some customers have reported connectivity issues and a lack of connectivity. Customers also differ on performance, alexa compatibility, and temperature adjustment.

AI-generated from the text of customer reviews

1,791 customers mention1,405 positive386 negative

Customers find the installation process of the Amazon device to be easy. For example, they mention that it is user-friendly installation, energy-saving features, voice control capabilities, setting a schedule is easy to do, and it is convenient and integrates with Alexa very well. Some say that the product does the job well and is easy control from their phone through the Alexa app.

"...new one, it came with all new mounting hardware and was just as easy to install as the first one that I bought." Read more

"...Smart Thermostat immediately caught my attention for its promise of easy installation and energy savings...." Read more

"...Once all wire were connected the setup of the t-stat was simply and when I say simple it was super didn’t have input the WiFi password or anything..." Read more

"...Its user-friendly installation, energy-saving features, voice control capabilities with Alexa, and sleek design have enhanced our home comfort while..." Read more

620 customers mention470 positive150 negative

Customers like the value of the product. For example, they say it's worth the competitive price, an investment in comfort, savings, and sustainability, and an affordable yet very high tech thermostat replacement.

"...a smart upgrade for my home; it's a personal investment in comfort, savings, and sustainability...." Read more

"...choice that we highly recommend to anyone seeking a reliable and cost-effective way to manage their home's climate." Read more

"Great for the price - Needs to be lockable to keep room mates from clicking from AC to Heat to AC again trying to change the temp!" Read more

"...This thermostat is so low budget it can't even determine that it's on a runaway heating/cooling expedition even though it's 113 degrees in the house?..." Read more

355 customers mention314 positive41 negative

Customers like the appearance of the device. They say it has a simple design and is modern. Some say it's easy to set up and that it has tasteful design.

"...---LOOK---The t-stat looks great after the final install the wall panel (included but optional for install) made it easier for me since I did..." Read more

"...energy-saving features, voice control capabilities with Alexa, and sleek design have enhanced our home comfort while reducing our energy bills...." Read more

"...Great start. Would I buy it again? Sure. Why? Because it's nice and simple...." Read more

"...PROS: the thermostats are streamlined and look nice and are reasonably easy to install if you have basic electrical knowledge...." Read more

1,793 customers mention1,021 positive772 negative

Customers are mixed about the performance of the product. Some mention that it has worked great, has reliable performance, and is easy to set up to Alexa. However, others say that the auto mode does not work as expected, the lack of features and smart capabilities, and that it is unusable.

"...With its reliable performance backed by Honeywell Home Thermostat Technology and Amazon's exceptional customer service, I feel confident knowing..." Read more

"...this time (it failed to set up using the bar code) and would not progress beyond the stage at which I entered the info about what wires were..." Read more

"...Compatibility: It works well with most HVAC systems, so it's suitable for a wide range of homes.Cons:..." Read more

"...Don't get baited by the low prices. They are unusable.You couldn't pay me to take one of these...." Read more

1,085 customers mention382 positive703 negative

Customers are mixed about the temperature adjustment of the product. Some mention that it makes managing their home's temperature a breeze, and has helped them save on energy. However, others say that they are stuck using temperature ranges for Home, Away, or Sleep functions without the ability to set their temperature via voice control when they're away. They also say that the thermostat doesn't have this swing temperature range.

"...This thermostat does not offer a sensor option to monitor a particular room or area, so if you’re looking for that, you may need to look at other..." Read more

"On the positive side, this is a good basic smart thermostat that integrates with Alexa (as would be expected)...." Read more

"...These thermostats are simply broken. Don't get baited by the low prices. They are unusable.You couldn't pay me to take one of these...." Read more

"...1st review: You are stuck using temperature ranges for Home, Away, or Sleep functions without the ability to SET a specific temp at a certain..." Read more

671 customers mention437 positive234 negative

Customers are mixed about the alexa compatibility of the product. Some mention that the integration is great, while others say that it falls short. The interface in the Alexa app is somewhat confusing, and the voice controls are not great. There were problems with the thermostat connecting to Alexa, and when you reset the thermostat, it disconnects it from your Alexa App.

"...As far as smart settings, you have two options. Alexa can learn your routines and track your phone’s location to adjust the temperatures accordingly..." Read more

"...the positive side, this is a good basic smart thermostat that integrates with Alexa (as would be expected)...." Read more

"...is only scheduling session on Android because it forces close my Alexa application all the time, I don’t have this problem with anything else on the..." Read more

"...certified thermostat, with its easy DIY installation and seamless integration with Alexa, has become an integral part of our smart home...." Read more

404 customers mention86 positive318 negative

Customers have connectivity issues with the thermostat. For example, they mention that the wire is barely sticking out, and the device is horrible when it comes to connectivity. Some customers also have issues with keeping the device connected to Amazon and the wiring wizard was buggy. Overall, customers are disappointed with the connectivity issues and the difficulty of getting the device to connect to their WiFi network.

"...In addition, several of these devices keep disconnecting from wifi randomly and show the "!" symbol...." Read more

"...It requires a c-wire for power, which if you don’t have one installed, you can buy separately...." Read more

"...Final score is:-1 for lack of sharing access / user accounts.-0.5 for lack of grouping / zones...." Read more

"...The wires were already compatible and connected. I did not had to play with any of the wires." Read more

Good for a first try but could be better
4 Stars
Good for a first try but could be better
tldr; a great start for Amazon getting into the thermostat business but needs improvement all the way around.BACKGROUND~~~~~~~~~~~I'm coming from an original Nest Thermostat which I've been using for over 6 years -- yes, it still works. So, why did I decided to switch? Well, I like new tech and I decided about 8 months that I really hate having multiple eco-systems of smart products. So, I selected Amazon a while back. I've been replacing my cams from Wyze and Ring to Ring. We've got about 10 Echo devices. You can say we are almost fully vested.COST~~~~This was a great deal. For about $50, you get a fully functioning smart thermostat. I didn't have a proper C-wire (supplies constant power to thermostat) so I had to get the Honeywell C-Wire kit. This is the kit that costs about $20 more which is auto selected if you choose the "no c-wire" model at the product page.INSTALLATION~~~~~~~~~~~The easiest part of the installation was opening the box. Overall, it took one hour to install including the c-wire adapter. 30 minutes of that was trying to put back on the furnace covers (@#$@!). Again, you don't have to worry about the c-wire adapter and opening the furnace if you already have a c-wire ran. You can check for the c-wire by popping open your current thermostat and seeing if there's a connection to "c-wire" or looking for an extra unused wire if you currently have a "dumb" thermostat.Amazon says there are stickers to label your wires but there was not! I checked, double-checked, and triple-checked. I'm so glad that my 6 year Nest came with some because I had already taken the time to label the wires. This was a bummer. It may make hooking up the wires to the new thermostat a real pain in the butt for some. Oh, and the honeywell kit also said it had labels. Guess what? Nope. :(Only if you don't have a c-wire run....They have you install the c-wire adapter first so you can have constant power running to the thermostat. That part was pretty easy but you have to be comfortable taking apart the furnace doors and rewiring to an adapter. ALWAYS TAKE PICTURES OF WIRES BEFORE DOING ANY SORT OF OF THIS TYPE OF WORK. You always want a reference.Let me complain about the alexa app a bit. Amazon tried. They really tried but damn. I can see this a deal breaker for many. So, check this out, you use your Alexa app to setup the thermostat. You crack open this app FIRST before doing anything else so it can guide you through the entire process. Before you do anything you want to also make sure you have the latest app version installed as well. Go to your app store and make sure to download the latest version.That being said, the Alexa app itself guides the user through the process. No videos. It's just text and picture. While it is laid out nicely, it can get confusing for some people. There needs to be more clarification on some of the steps. Perhaps a video?One of the most annoying parts of the app is that while you put your phone down to do some steps, you come back and the app quits the process. You are at the main screen! No joke. You have to literally go through all the steps again to get back to where you left off. I had to do this about 7 times. It was super annoying. Amazon, you must do something to correct this. It is super annoying.As far as the rest of the installation, it was pretty straightforward. If you wired a thermostat before, you'll get through this. Again, super annoying with the app reverting to the begining due to timing out.I noticed that the wires in the closure were a super tight fit. At one point I closed the latch and the small closure bulched out. I had to re-open and re-position cables. That took a bit to re-adjust.The optional decorative plate (presumably to hide wall holes or imperfections), I could not get flat. It seemed thin and flimsy. When looking from an angle, you can tell a bit. :(The thermostat itself snapped real easily to the connection plate. No issues there. Pretty solid.SETUP~~~~~The thermostat fired up once I turned the power back on to the hvac. The alexa app took about 2 minutes to talk to the thermostat to connect and configure it. This part was automatic.PHYSICAL FUNCTIONALITY~~~~~~~~~~~~~~~~~~~~~If you look at the thermostat itself it can be confusing even though it's simple. The arrows dissapear. The arrows I think need to be there so that anyone can understand where to press the buttons to turn up or down temp.DIGITAL/GUI FUNCTIONALITY~~~~~~~~~~~~~~~~~~~~~~~The thermostat function seems buried in the alexa app. I know you can set favorites, but there should be a way to have it up as soon as you open alexa app. I know the entire purpose is to use alexa via voice but still.How about some dedicated widgets for the thermostat? Something we can throw on the phone home screen so we can easily adjust temperature?Another note. My wife also has the alexa app with her own account. She is part of the household. She cannot see the thermostat to adjust in the app. :( I'll have to investigate this more.CONCLUSION~~~~~~~~~~~Great start. Would I buy it again? Sure. Why? Because it's nice and simple. There really isn't anything that can't be solved with a software update on this one.Be sure to check with your local utility company as you can essentially get a rebate for it making it 'free.'
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Top reviews from the United States

Reviewed in the United States on December 31, 2023
Style: no C-wire AdapterConfiguration: ThermostatVerified Purchase
89 people found this helpful
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Reviewed in the United States on January 30, 2024
Style: no C-wire AdapterConfiguration: ThermostatVerified Purchase
16 people found this helpful
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