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

4 4 out of 5 stars | 1,060 ratings

Price: 39.99

Last update: 12-22-2024


About this item

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 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.
Supports temperature sensors - use compatible Echo devices (Echo Dot (4th and 5th gen), Echo Dot with clock (5th gen)) and the Amazon Smart Air Quality Monitor as temperature sensors to address hot or cold spots in your home.

Top reviews from the United States

  • Emily Stephens
    5.0 out of 5 stars Outstanding Thermostat
    Reviewed in the United States on October 23, 2024
    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.
  • NCite45
    5.0 out of 5 stars Looks classy, easy installation.
    Reviewed in the United States on November 26, 2024
    Refurbished and not in original box but everything except the QR code was included. One installation step is to scan this code, but there’s a “don’t have code” option. Installation was a breeze, works fine with my HVAC heat pump. The included instructions wasn’t the best, but the Alexa app proved more useful.

    A nice surprise I missed in the feature details is an auto dimmer, based on ambient room lighting. Another is its ability to use a later model echo dot in another room as the temperature sensor, so the smart thermostat fires based on the room temp reading in that room. Overall, I like it, I would buy it again, I did. Just got a 2nd one for my other HVAC unit.
    Customer image
    NCite45
    5.0 out of 5 stars Looks classy, easy installation.
    Reviewed in the United States on November 26, 2024
    Refurbished and not in original box but everything except the QR code was included. One installation step is to scan this code, but there’s a “don’t have code” option. Installation was a breeze, works fine with my HVAC heat pump. The included instructions wasn’t the best, but the Alexa app proved more useful.

    A nice surprise I missed in the feature details is an auto dimmer, based on ambient room lighting. Another is its ability to use a later model echo dot in another room as the temperature sensor, so the smart thermostat fires based on the room temp reading in that room. Overall, I like it, I would buy it again, I did. Just got a 2nd one for my other HVAC unit.
    Images in this review
    Customer image
  • Chris
    1.0 out of 5 stars Hunches & Thermostat & Customer Services
    Reviewed in the United States on October 24, 2024
    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.
  • Freedompc
    5.0 out of 5 stars Refurbished and functional
    Reviewed in the United States on November 7, 2024
    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
  • nikb29
    4.0 out of 5 stars Good option but software needs a huge upgrade
    Reviewed in the United States on September 16, 2023
    Installation itself was fairly easy and the thermostat is of a high quality and looks sleek. The software though is a different story. Using the Alexa app to get the thermostat connected to my wifi was much harder than the physical installation. After that was resolved (thermostat can only connect to 2.4Ghz); I finally got to using it. There needs to better options for scheduling/automation.

    Alexa hunches does not work great - it doesn't start my 'Sleep' schedule when I got to bed and sometimes switches to 'Away' when I am actually sleeping. Sometimes it stays in 'Sleep' mode even though I am awake. Just not great. The scheduling works a lot better but it removes all the automation altogether. I have shared my location with the app but since it runs on a schedule it will not look to see that I have left the house and therefore will not change to 'Away' mode. Kind of defeats the purpose of having a 'smart' thermostat.
  • Leland Blodgett
    5.0 out of 5 stars Works as advertised
    Reviewed in the United States on December 17, 2024
    perfect thermostat to save energy. Very east to set up with Alexa, created daily schedules.
    A bit tricky to adjust on the thermostat, but very easy in the Alexa app.
    Install can be done by the handy homeowner, just follow the guidance provided in the Alexa App
  • review this
    5.0 out of 5 stars Works Well
    Reviewed in the United States on November 6, 2024
    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)
  • ENeb
    3.0 out of 5 stars Look good
    Reviewed in the United States on December 1, 2024
    seems to look good. No sign of usage. Returned three of them as they won't work on my system no matter what i try. Not worth it to hire out to connect them $200 to connect a $60 thermostat

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