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This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
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2-Year Protection Plan for Amazon Smart Thermostat

from SquareTrade, Inc.
  • Only compatible with Amazon Smart Thermostat purchased within the last 30 days
  • Make up to 3 claims during the term of your warranty
  • No deductibles or shipping fees
  • Receive a replacement device 2 to 3 days after you make a valid claim
  • Your Protection Plan will be delivered via e-mail within 24 hours
  • Your card will be charged immediately, plan starts when device is delivered
  • Cancel anytime, full refund in first 90 days
  • Fully transferable with gifts
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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.

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

4.2 out of 5 stars 1,783 ratings

& FREE Returns
Return this item for free
  • Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
  • Learn more about free returns.
How to return the item?
Up to $59 in rebates may be available from energy providers for eligible customers. Learn more

Compatibility information

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

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Style: no C-wire Adapter
no C-wire Adapter
Updated other options based on this selection
Configuration: Thermostat
Updated other options based on this selection
This item is certified to work with Alexa
Add voice control by combining with an Alexa device
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  • “Alexa, increase the thermostat.”

Total Price: $94.98
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Enhance your purchase

  • 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 - ENERGY STAR certified thermostats are required to 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.

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:



33% post-consumer recycled plastics


Energy Dashboard

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


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


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.

Alexa App features

Indoor humidity sensor reporting, energy dashboard monitoring, and scheduling (up to four time periods can be configured, each day of the week).

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.


Visit Amazon Help to learn how to use your Amazon Smart Thermostat.

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

Climate Pledge Friendly

Climate Pledge Friendly

Climate Pledge Friendly uses sustainability certifications to highlight products that support our commitment to help preserve the natural world. Time is fleeting. Learn more


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

Customer Questions & Answers

Customer reviews

4.2 out of 5 stars
4.2 out of 5
1,783 global ratings

Top reviews from the United States

Reviewed in the United States on November 6, 2021
Style: no C-wire AdapterConfiguration: ThermostatVerified Purchase
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Reviewed in the United States on November 6, 2021
Style: no C-wire AdapterConfiguration: Thermostat