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Returnable until Jan 31, 2025
Returnable until Jan 31, 2025
For the 2024 holiday season, eligible items purchased between November 1 and December 31, 2024 can be returned until January 31, 2025.
Returns
Returnable until Jan 31, 2025
For the 2024 holiday season, eligible items purchased between November 1 and December 31, 2024 can be returned until January 31, 2025.
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Support
Product support included
In the event your product doesn't work as expected or you need help using it, Amazon offers free product support options such as live phone/chat with an Amazon associate, manufacturer contact information, step-by-step troubleshooting guides, and help videos. By solving product issues, we help the planet by extending the life of products. Availability of support options differ by product and country. Learn more
Enhance your purchase

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.

Same device available in New condition
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required
$79.99
& FREE Shipping. Details
4.1 out of 5 stars (24,523)
1-year limited warranty

Certified Refurbished Amazon Smart Thermostat – ENERGY STAR certified, DIY install, Works with Alexa – C-wire required


$69.99
FREE Returns
Testing and Inspection Process
Each pre-owned device goes through a full diagnostic test, thorough cleaning and inspection, secure data wipe, and replacement of any defective parts identified in testing (where applicable).
Tested
This device was tested by Amazon
Function: Fully functional More details
Battery: Tested and charged, if applicable
Software: Updated during testing

Compatibility information

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

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Purchase options and add-ons

  • A Certified Refurbished Amazon Smart Thermostat is refurbished, tested, and certified to look and work like new and comes with the same limited warranty as a new device. Certified Refurbished Amazon devices may be packaged in generic Amazon-branded boxes.
  • Smart upgrade - Amazon Smart Thermostat is an easy way to switch from a traditional thermostat and help reduce energy usage.
  • 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.
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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
6 people standing at a counter

Certified for Humans

Certified for Humans products are smart devices for non-experts. Stress-free, no patience needed devices. Connecting to Alexa is quick and easy—even the software updates are automatic. All Certified for Humans devices meet a high standard and customers love them because they’re surprisingly simple. Learn more about Certified for Humans.



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.

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.

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. Additional features like indoor humidity sensor reporting, energy dashboard monitoring, and scheduling (up to four time periods can be configured, each day of the week) in the Alexa app.

Automatic Control

Option to enable Thermostat Hunches in the Alexa app for automatic control. If Alexa has a hunch nobody is home or everyone is asleep, she can adjust the thermostat automatically. Learn more about Hunches.

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. This device receives the same limited warranty as a new device. Learn more about Certified Refurbished Amazon devices.

Generation

Amazon Smart Thermostat - 1st Generation - 2021 release

Standby Power

0.89 Watts

Looking for specific info?

Customer reviews

4 out of 5 stars
916 global ratings

Customers say

Customers like the ease of installation, value for money, and appearance of the product. They mention it's easy to use, syncs to WiFi network, and looks great. Some are also happy with its control ability. However, some dislike the connectivity and sturdiness. Opinions are mixed on functionality and temperature control.

AI-generated from the text of customer reviews

91 customers mention "Ease of installation"72 positive19 negative

Customers find the installation of the product easy. They mention it's easy to set up with Alexa, has clear and detailed instructions, and is much easier to control.

"...It came with everything needed to install it and I was able to install it myself and save $100 installation charge offered at Lowes...." Read more

"...The installation was easy and straight forward, my ONLY complaint is that you need to control the thermostat through the alexa app on your phone, it..." Read more

"...I am still getting used to it but I like that it is easy to program right from my Alexa app. It is easily programed to do time frames that you want...." Read more

"...Easy installation, Step by step setup and great choice of options in the Alexa app! We highly recommend it!" Read more

49 customers mention "Value for money"39 positive10 negative

Customers like the value for money of the product. They mention it's worth the money, has a rebate, and lowers energy costs. Some say the thermostat is of high quality and looks sleek. Overall, most are satisfied with the product's value and performance.

"...I ordered it and to my surprise, it is awesome. It is sleek and clean looking. The connectivity and app options are more than I could ask for...." Read more

"...its own app but it's a small price to pay for such a great and budget thermostat" Read more

"This is a great and expensive smart thermostat. That worked right out the box by just connecting to my Alexa app and Auto set up...." Read more

"...Overall this has been a waste of time and I will be removing and buying a better name brand wifi thermostat." Read more

25 customers mention "Looks great"22 positive3 negative

Customers like the appearance of the product. They mention it has a minimalist design and looks new. Some say the display is perfect for minimalists, displaying the only information needed out of the box.

"...I ordered it and to my surprise, it is awesome. It is sleek and clean looking. The connectivity and app options are more than I could ask for...." Read more

"...For the price this thermostat looks and functions great, it has a sleek design and you can control the temperature through your phone...." Read more

"...and I love it because I can control everything from the phone, I love the design, it's almost not even noticeable on the wall" Read more

"...itself was fairly easy and the thermostat is of a high quality and looks sleek. The software though is a different story...." Read more

14 customers mention "Control ability"14 positive0 negative

Customers like the control ability of the product. They say it's easy to setup and control from anywhere. Customers also appreciate that they can change settings remotely.

"...but the controls on the app are as good as the other smart thermostats multiple times the price of this." Read more

"...So far so good! love the ability to control from my phone with autoimmune issues and mobility issues this is incredibly helpful!" Read more

"...installation was super easy, and I love it because I can control everything from the phone, I love the design, it's almost not even noticeable on..." Read more

"...Easy to set up, easy to use, and with complete control." Read more

125 customers mention "Functionality"79 positive46 negative

Customers have mixed opinions about the functionality of the product. Some mention it works seamlessly with their Alexa devices and app, while others say it doesn't work with a multi-stage heat pump.

"...Not to mention it communicates with my Alexa Echoes in the house and asks a a remote temperature sensor...." Read more

"This is a great and expensive smart thermostat. That worked right out the box by just connecting to my Alexa app and Auto set up...." Read more

"...C" wire is required. Without it, the thermostat either won't work or will need an adapter" Read more

"...Easy installation, Step by step setup and great choice of options in the Alexa app! We highly recommend it!" Read more

51 customers mention "Temperature control"27 positive24 negative

Customers have mixed opinions about the temperature control of the product. Some mention it makes it easy for guests to adjust the temperature using Alexa voice controls. Others say they cannot control the temperature deviation, it constantly sets its own temperatures via hunches, and they can only pick three temperatures for the whole week.

"...guys does a lot more than I understand at this point, but the programming daily temps, wireless access, being able to tell Alexa to change the temp..." Read more

"...easy and straight forward, my ONLY complaint is that you need to control the thermostat through the alexa app on your phone, it doesn't have its own..." Read more

"...love being able to control the thermostat from my phone" Read more

"...The only thing I'm not wild about is that there isn't both the current temperature and the set temperature on the screen." Read more

11 customers mention "Connectivity"0 positive11 negative

Customers are dissatisfied with the connectivity of the product. They mention it's impossible to connect, won't stay connected, and is always unresponsive on the app. Some say it disconnects a lot and doesn't heat the house correctly.

"...of the price but I do like the functions but was not able to get it connected properly even using a licensed electrician so I had to return this item..." Read more

"...We do have some trouble keeping it connected to wifi, it disconnects and reconnects often (without us having to reconnect it ourselves), but I think..." Read more

"...Even having the set up ready, the last part it was impossible to connect. Internet said I needed to update, tried several times, impossible" Read more

"This thing will absolutely not stay connected to Alexa and is always unresponsive on the app." Read more

11 customers mention "Sturdiness"0 positive11 negative

Customers are dissatisfied with the sturdiness of the product. They mention it's defective and the thermostat display is broken.

"Broken unit: let me explain!I purchased this Amazon certified thermostat as it was cheaper of a new one...." Read more

"...The unit just died. I replaced it with my old thermostat and my system came on and is works fine...." Read more

"This thermostat display is broken and never turns on, the A/C runs constantly unless you remove the thermostat from the wall...." Read more

"This was a faulty unit. Trying to get support for the product is proving to be difficult. One month old...." Read more

Works perfectly..Exactly what we needed
5 out of 5 stars
Works perfectly..Exactly what we needed
Upgraded our old and outdated thermostat to the Amazon smart thermostat. Easy installation, Step by step setup and great choice of options in the Alexa app! We highly recommend it!
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Top reviews from the United States

Reviewed in the United States on October 23, 2024
Configuration: Thermostat onlyVerified Purchase
I recently was replacing my Honeywell Thermostat of 10 years because of the Wifi failing to connect. I purchased a newer one similar to the old one from Lowes for about $200. Before I installed it, I was looking online here and found this little guy. It was real reasonable at just around $50. I ordered it and to my surprise, it is awesome. It is sleek and clean looking. The connectivity and app options are more than I could ask for. Not to mention it communicates with my Alexa Echoes in the house and asks a a remote temperature sensor. That feature is an added cost on the ones from Lowes. I am sure this little guys does a lot more than I understand at this point, but the programming daily temps, wireless access, being able to tell Alexa to change the temp from any room using voice, predictive temp changes, and monitoring from the app while away are all things I love about this little guy. It came with everything needed to install it and I was able to install it myself and save $100 installation charge offered at Lowes. I can't say enough great things about this Thermostat.
Reviewed in the United States on November 7, 2024
Configuration: Thermostat onlyVerified Purchase
Got this to replace a non-smart thermostat. Bought the refurbished one bc usually there isn't anything wrong with the product but rather the prior buyer. Took about 5 min to install. NO I structions, NO QR code which Alexa wanted to make the process faster. Just placed the thermostat into program mode and 2 minutes later it was good to go. "C" wire is required. Without it, the thermostat either won't work or will need an adapter
Reviewed in the United States on October 24, 2024
Configuration: Thermostat onlyVerified Purchase
Thermostat works like a basically Thermostat because interaction with hunches as seen in many fourms doesn't work well... you could set a schedule but my old one had a schedule setup. I was looking for something that would work better than a schedule since my hours of being home change all the time. So when I leave hunches is suppose to pick up on that and set my thermostat on away temp. Same for sleep... it's set itself to sleep while I was away but barely picks up when I'm away properly. I've called tech and they just sent me to some other company who only had me reset router and thermostat and that's about all they can do. I have researched it and had little luck other than being told Amazon tech logs in logs and a few days later everyone says it works. So far I'm not getting the same support and feel stuck debating installing my previous honeywell thermostat back up. (Update) after much troubleshooting on my own, I called back to customer support and informed them of my previous attempts and what all I have done and about the fourms I read that seem to fix the issue. I asked that we troubleshoot it and if we can't fix it that I get a refund. Customer service went straight into refund with not attempt to fix it. Then told me they would return the funds as credit as that's how I purchased it and that it would take 3 to 4 days after I send it back before I get a refund... my response was so I'm suppose to wait for the refund before I can order a new thermostat and then wait for deliever of a new one without their attempt to troubleshoot and basically go a week without a thermostat... answer was yes. Support was worthless and so was this thermostat... spend the extra money and get a google nest or ecobee... you'll be glad you did to avoid Customer service for a bit that works as it is attended too.
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Reviewed in the United States on January 31, 2024
Configuration: Thermostat onlyVerified Purchase
I bought this because our google nest stopped working and this was cheap and honestly I would buy it all over again. For the price this thermostat looks and functions great, it has a sleek design and you can control the temperature through your phone. The installation was easy and straight forward, my ONLY complaint is that you need to control the thermostat through the alexa app on your phone, it doesn't have its own app but it's a small price to pay for such a great and budget thermostat
Customer image
4.0 out of 5 stars Great budget thermostat, has enough features to be useful and not too many to be annoying
Reviewed in the United States on January 31, 2024
I bought this because our google nest stopped working and this was cheap and honestly I would buy it all over again. For the price this thermostat looks and functions great, it has a sleek design and you can control the temperature through your phone. The installation was easy and straight forward, my ONLY complaint is that you need to control the thermostat through the alexa app on your phone, it doesn't have its own app but it's a small price to pay for such a great and budget thermostat
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Reviewed in the United States on November 6, 2024
Configuration: Thermostat onlyVerified Purchase
Although this is Refurbished, you could never tell. I am still getting used to it but I like that it is easy to program right from my Alexa app. It is easily programed to do time frames that you want. The only thing that confused me is that it does not have a battery backup like normal thermostats have but it makes much more sense because if the power is off with a forced air system you cannot use the furnace anyway.

Only one more test to go will be to test the vacation mode coming up soon to see how it does. (although have not gotten first bill with this new thermostat yet haha)
Reviewed in the United States on November 2, 2024
Configuration: Thermostat onlyVerified Purchase
This is a great and expensive smart thermostat. That worked right out the box by just connecting to my Alexa app and Auto set up. The screen is very basic, just down and up buttons. but the controls on the app are as good as the other smart thermostats multiple times the price of this.
Reviewed in the United States on November 11, 2024
Configuration: Thermostat onlyVerified Purchase
Upgraded our old and outdated thermostat to the Amazon smart thermostat. Easy installation, Step by step setup and great choice of options in the Alexa app! We highly recommend it!
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5.0 out of 5 stars Works perfectly..Exactly what we needed
Reviewed in the United States on November 11, 2024
Upgraded our old and outdated thermostat to the Amazon smart thermostat. Easy installation, Step by step setup and great choice of options in the Alexa app! We highly recommend it!
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Reviewed in the United States on October 11, 2024
Configuration: Thermostat onlyVerified Purchase
Doesn’t work well with older furnace short cycles and ac always says delayed starts
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