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Save Money and Energy with Amazon Smart Thermostat – Works with Alexa and Ring – C-Wire Required

  • Amazon Smart Thermostat is an easy smart upgrade to reduce energy usage and save money
  • Receive details about rebates from energy providers after purchase
  • ENERGY STAR certified thermostat saves an average of $50 yearly on energy bills
  • Alexa can automatically update the temperature for comfort
  • Control temperature from anywhere using the Alexa app
  • Installation guidance provided through the Alexa app
  • Made with Honeywell Home Thermostat Technology for reliability
  • Compatible with most 24V HVAC systems, requires C-wire or power adapter kit


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Last updated on June 11, 2024 1:48 am
Save Money and Energy with Amazon Smart Thermostat – Works with Alexa and Ring – C-Wire Required
Save Money and Energy with Amazon Smart Thermostat – Works with Alexa and Ring – C-Wire Required


Introducing the Amazon Smart Thermostat

The Amazon Smart Thermostat is a revolutionary device that offers a smart upgrade from traditional thermostats, helping you save both money and energy while providing automatic comfort in your home.

Key Features:

  • Save Money: By switching to the Amazon Smart Thermostat, you may be eligible for rebates from energy providers in your area, potentially saving you even more on your purchase.
  • Save Energy: This ENERGY STAR certified thermostat can save an average of $50 on yearly energy bills according to EPA estimates.
  • Automatic Comfort: Let Alexa handle the programming for you, ensuring the temperature is always set to keep you comfortable.
  • On-the-Go Control: Whether you're at home or away, you can easily control the thermostat using the Alexa app or voice commands through an Alexa-enabled device.
  • Easy Installation: The Alexa app provides step-by-step guidance for installation, making it a simple process even for beginners.

Product Details:

Size: 3.56 x 3.56 x 0.84 in

Weight: 3.86 oz

Model Number: S6ED3R

Compatibility: Works with most 24V HVAC systems, excluding 110-240V systems. Requires a C-wire or power adapter kit for installation.

Network Connectivity: Supports 2.4 GHz wifi networks only.

Additional Features:

  • Installation tools included in the box
  • ENERGY STAR and ECOLOGO Silver certified
  • Thermostat Hunches feature for automatic adjustments based on usage patterns
  • 1-year limited warranty included

Get Started:

Upgrade your home with the Amazon Smart Thermostat today and start enjoying the benefits of energy savings, automatic comfort, and convenient control options.

For more information and support, visit the Amazon Smart Thermostat support page.

Additional information

Specification: Save Money and Energy with Amazon Smart Thermostat – Works with Alexa and Ring – C-Wire Required


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


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

Model number



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.


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


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).


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.”


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.


Amazon Smart Thermostat – 1st Generation – 2021 release

Standby Power

0.89 Watts

Save Money and Energy with Amazon Smart Thermostat – Works with Alexa and Ring – C-Wire Required Videos

Price History


World News

Sustainable features of Amazon devices you might not know about - About Amazon
April 22, 2024 - About Amazon
Save Yourself Money Now and Later With 31% Off the Google Nest Thermostat at Amazon - CNET
April 24, 2024 - CNET
Using Amazon Verified Permissions to manage authorization for AWS IoT smart home applications | Amazon Web ... - AWS Blog
April 23, 2024 - AWS Blog
How to fix an Amazon Smart Thermostat that’s unresponsive - Digital Trends
April 14, 2024 - Digital Trends
Amazon Smart Thermostat deal: Get it for 20% off - Mashable
April 19, 2024 - Mashable
Amazon Smart Thermostat Complete Review - EnergySage Blog
December 6, 2023 - EnergySage Blog
This Amazon Smart Thermostat Is on Sale for $25 - Lifehacker
March 28, 2024 - Lifehacker
Amazon's Smart Thermostat is on sale and comes with a free Echo Pop - The Verge
November 27, 2023 - The Verge
4 Best Smart Thermostats for a More Efficient Home - Esquire
April 12, 2024 - Esquire
The best smart thermostats of 2024 - CNN Underscored
January 9, 2024 - CNN Underscored

Reviews (22719)

22719 reviews for Save Money and Energy with Amazon Smart Thermostat – Works with Alexa and Ring – C-Wire Required

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  1. funnytennisman

    I’m a big Nest fan had it on my old house the problem that I have with them it’s the cost, and even with gas company great rebate didn’t justify the cost especially with my new home having a total of 5 thermostats (t-stat). I was excited when I found that Amazon partner with Honeywell to get this t-stat created as Honeywell has been creating t-stat for years which make me feel better when making the purchase.
    Now let go over the details for cost it’s good and I got two of them which at the end of the day will be free due to the electric company rebate for a smart t-stat. I didn’t get a C- adapter and I will explain later (INSTALL session) why I purchase a 24-volt transformer for my first-floor unit.


    Love the package it reminds me of the NEST when it first starts came with everything that you needed the only additional tools, I need was a harmer, and drill but this is normal for these installations.
    Now the biggest question that everyone has is the C (common) wire. This is where you need to do your research regardless of what company you go with when upgrading to a smart thermostat, due your homework on what you need. For me I have a spill unit (boiler & A/C) first for my second-floor unit it was super easy I had an extra wire and I use it for Common the t-stat startup and finish within 30 min. Now for my first floor I utilize a 24-volt transformer because I didn’t have spare cables and I didn’t want to run a new cable which drove me to make the purchase again do your homework before and see what option best works for your use case.
    I connected the transformer to the C wire and the other end to Rc and that works like a champ. This is critical if you have a split unit since Honeywell power their t-stat via Rc only when you have two RED Wire (R (heater) and Rc(cooling)) and the blue tab (internal jumper is down position. If you only have one RED Wire you are fine just keep the blue tab up and your t-stat will turn on without any problems. I did reach out to Honeywell and explain to them they need to explain this on their site and white papers that when you have split units’ power for the t-stat will come from Rc and not from R this is critical because my house previous owner installed a switch to keep the A/C unit down through the winter to avoid accident turning on the unit which is great idea. Please keep in mind this is NOT an Amazon problem that is Honeywell they did acknowledge their mistake and agree to update their site and documentation.
    Running my transformer cable and installing the unit took me about 60 minutes because I wanted to look perfect with the transformer cable going through the wall this make the installation look cleaner.


    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 else since it automatic joined my account that was amazing and simply just like setting a fire table that was a great experience. Amazon did an amazing job doing this some users this my not be as good, but I look automation the less click I must do the less chances of mistake A+

    The t-stat looks great after the final install the wall panel (included but optional for install) made it easier for me since I didn’t have to paint (if you had a different color paint I would recommend adjusting before completing the install but that is just me)

    —Interface (GUI)—-

    For me the GUI is great for some it my but I’m one of those people that like to have one application on my phone or tablet rather than 2 and this is where Amazon did another amazing job. Please keep in mind that Google who purchase NEST is doing the same thing I see the NEST application going away in the future all new NEST is configure from Google Home and they also did a great job The GUI it’s simple and allows you to setup multiple schedules and copy them to different days or week. Huge plus on my book because for the NEST I had to do manually per day I can setup one day and copy to another. You can setup away and home schedule or utilize your current Amazon device to tell the t-stat that you are home or away. Another item that I love from the Amazon you can setup MAX cooling or heating this allows for mistake not to happen and getting your house too hot or cool really go option to have and you can set filter replacements without your assistance (optional) for me this is great no more remembering air filter as they will show up at my footsteps.

    Energy saving incentives can also be done via the application. The dashboard its great too it tells you how much energy you utilize each day and where you can save.

    Now the only downside for that I experience 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 application just the scheduling session. This option works perfect on my wife new iPhone and iPad pro and new Android phone. My old Android is the one with this problem, but I experience this kind of thing on and off since it’s an older device.

    ——-Final judgment —-

    The device is good option for a smart t-stat and would recommend for anyone some of the problems that were reported it was on day one which is expected with any new launch overall I see this t-stat giving Google (NEST) and others a run for their money as now you have a great option for smart t-stat and you don’t require to break your budget to acquire one. In addition, love the one application for everything as previously mentioned all big companies are doing this model to stop the install of some many other applications. In a scale from 0 -10 this t-stat gets a 9 please note that the NEST 3rd gen got a 9 from me. Hope this helps everyone make the correct decision and I will update this review in a few weeks to report back.

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  2. Laura K. Gonzalez

    I’ve been holding off on buying this thermostat for quite some time based on reviews and even considered other pricier brands for the same reason but I finally decided to give it a try because I’m sick of having to go over to the thermostat and manually adjust it (first world problem right?)

    I am so pleased with my decision that immediately after installing it, I bought a second on for upstairs.

    Installation was easy and took about 15-20 minutes to install and set up in the app. The unit mounts with 3 screws and anchors, a small screwdriver tool and an optional wall plate. A word of advice – use a better screwdriver because the included tool isn’t great. You’ll also need a drill with a 3/8” bit to assist with the wall anchors.

    Some of the reviews I read mentioned that people had trouble with the app recognizing two thermostats, that was not the case at all with me. It was extremely easy to differentiate in the app and just as easy to control each one.

    Another review that made me worry about buying this thermostat was that you couldn’t simply tell your Alexa device to adjust the temperature, and that you had to open the app to make adjustments. This problem must have been resolved or a solitary issue because ours works just fine with voice commands.

    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 options.

    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 when you’re home or away. This works best when everyone in the household connects to the app and consents to tracking. It will even adjust the temperature to your desired settings when you’re within a certain range of your home.

    If this option isn’t for you, it will allow you to set schedules and desired temperature ranges throughout each day of the week. But you’re still able to log into the app and make adjustments when needed.

    My last tidbit of information is regarding the second unit that I bought, it was a “renewed unit” and priced at $40. It’s absolutely perfect and I couldn’t tell the difference between it and the new one, it came with all new mounting hardware and was just as easy to install as the first one that I bought.

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