Yes, you can use voice commands with many smart thermostats, as they are compatible with voice assistants like Amazon Alexa, Google Assistant, and Apple HomeKit. This allows you to control your thermostat with simple spoken instructions, such as adjusting the temperature, switching between heating and cooling modes, or setting schedules. To use this feature, you'll need to set up your smart thermostat with a compatible voice assistant app on your smartphone or smart device. Once configured, you can enjoy the convenience of managing your home's climate through voice commands. However, the specific features and compatibility may vary depending on the brand and model of your smart thermostat.
Best Smart Thermostats of February 2025

Rating is 5 out of 5
ecobee New Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant
- Save up to 26% per year on heating and cooling costs. ENERGY STAR certified. Included SmartSensor (50 dollar value) adjusts the temperature in the rooms that matter most to reduce hot or cold spots to keep you comfortable. Compared to a hold of 72°F.
- Built-in air quality monitor alerts you to poor air quality, provides tips on how to improve it, and reminds you when it’s time to change your furnace’s air filter.
- Premium materials and advanced engineering mean a large, vibrant display with a cinematic interface, a timeless design, and next level occupancy sensing.
- Compatible with most 24VAC HVAC systems: furnaces, ACs (2H/2C), heat pumps (2H/2C + 2 stage AUX), boilers, PTACs, and fan coil units (3 fan speeds). Includes Power Extender Kit for C-Wire-less homes, ensuring easy installation.
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Rating is 4.9 out of 5
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow
- The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, you’ll need a C wire or other compatible power accessory. Lock feature: No
- Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home; easily program an energy efficient schedule in the Google home app on your Android or iPhone
- Control Nest Thermostat with Google Home and other smart home platforms. Compatible with Google Assistant and all Matter-certified voice assistants. Voice control requires a compatible smart device.
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Rating is 4.8 out of 5
ecobee3 Lite Smart Thermostat - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - DIY Install, Black
- Save up to 23% annually on heating and cooling costs (compared to a hold of 72°F)
- Control from anywhere using your Android or iOS device
- Add SmartSensor to manage hot or cold spots and deliver enhanced comfort to the rooms that matter most
- ecobee was named an ENERGY STAR Partner of the Year award winner
- Integrates seamlessly with your preferred smart home system. Connectivity - Wi-Fi, 802.11 b/g/n @ 2.4 GHz
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Rating is 4.7 out of 5
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required
- 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 Control - Alexa can automatically switch between your preferred home, away, and sleep temperatures.
- On-the-go control - Let Alexa set the temperature, or set it yourself from anywhere with the Alexa app.
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Rating is 4.6 out of 5
Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray
- COMFORT COMES IN YOUR COLOR. Personalize your Wi-Fi Smart Color Programmable Thermostat to fit your décor.
- YOUR SCHEDULE. YOUR WAY. Flexible programming options for your schedule or utility company’s peak rate pricing.
- EASY OPERATION AND INTUITIVE. Bright, easy-to-read touchscreen makes for simple operation.
- COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). C-Wire required.
- ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.
- Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.
- Fan Control Options include On: Fan is always on; Automatic: Fan runs only when the heating or cooling system is on; and Circulate: Fan runs randomly about 35% of the time.

Rating is 4.5 out of 5
Google Nest Learning Thermostat - 3rd Gen (2015) - Programmable Smart Thermostat for Home - Works with Alexa - Stainless Steel
- Home/Away Assist: don't heat or cool an empty home. Home/Away Assist adjusts the temperature after you leave.
- Remote control: Control your thermostat from anywhere using the Nest app.
- Know more, save more Check your Energy History to see how much energy you use and why.
- Look for the Leaf: The Nest Leaf appears when you choose a temperature that saves energy.
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Rating is 4.4 out of 5
Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75 Black 5.625" x 3.4" x 1.17"
- PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties
- SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports
- SLEEK, MODERN DESIGN: The large color display features easy-to-read temperatures and intuitive menus. Available in black, white and silver to complement your home décor
- CONTROL FROM ANYWHERE: Remotely control your home comfort from your smartphone or tablet using the Sensi mobile app for Android and iOS devices
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Rating is 4.3 out of 5
ecobee New Smart Thermostat Enhanced - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - Smart Home
- Save up to 26% per year on heating and cooling costs. ENERGY STAR certified. Automatically adjusts the temperature when you’re away to never heat or cool an empty home. Compared to a hold of 72°F.
- Enjoy comfort without compromise. Smart Thermostat Enhanced preheats or precools your home before you arrive, so it’s the perfect temperature the moment you walk in. Automatically adjusts to your desired temperature when you’re home or sleeping to keep you comfortable day and night. Adjusts the temperature to account for humidity so your home always feels like the temperature you’ve set.
- ecobee Smart Thermostat Enhanced is made with quality materials and designed to last on your wall for over a decade. It’s hardwired so you never have to worry about losing control or replacing batteries. If you run into problems, our dedicated support team is available 7 days a week.
- Add in a SmartSensor which allows you to measure the temperature in rooms that matter most, like the nursery or bedroom. It reads temperature and movement in whatever room it is placed in for complete home monitoring and energy savings (SmartSensor sold separately).
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Rating is 4.2 out of 5
Google Nest Thermostat E - Programmable Smart Thermostat for Home - 3rd Generation Nest Thermostat - Works with Alexa,White
- Remote control lets family members change the temperature on this smart thermostat from anywhere using a phone, laptop, or tablet[1]
- The Nest Leaf appears when you choose a temperature that saves energy; with Energy History, just check your phone to see how much energy you used and find out how to save mo
- Works with the Nest Temperature Sensor (sold separately) to help make sure a certain room is the exact temperature you want it to be
- Works with Alexa, Google Assistant, and other smart speakers so you can adjust the temperature with your voice
- Designed to fit any home, with a frosted display that blends into the background
- Easy installation, typically in 60 minutes or less, with everything you need included in the box; compatible with 95% of heating and cooling systems
What is the range of voice commands available for smart thermostats?
Smart thermostats offer a variety of voice commands, depending on the brand and model, as well as the voice assistant they're compatible with, such as Amazon Alexa, Google Assistant, or Apple Siri. Here are some common types of voice commands you might use:
- Temperature Adjustment: "Set the temperature to 70 degrees." "Increase the temperature by 2 degrees." "Make it cooler/warmer."
- Mode Switching: "Set the thermostat to heating/cooling mode." "Turn the fan on/off."
- Status Checks: "What's the current temperature?" "What's the thermostat set to?" "Is the fan running?"
- Scheduling and Settings: "Set the temperature schedule for weekdays/weekends." "Switch to eco mode."
- Climate Control by Room (for multi-zone systems): "Set the living room to 72 degrees." "Increase the basement temperature by 3 degrees."
- General Commands: "Turn the thermostat off." "Resume the schedule."
The specific commands can vary, so it's advisable to consult the user manual of your smart thermostat or the support page of the voice assistant you're using. Additionally, some systems may have more advanced or customizable commands.
How do I disable voice commands on my smart thermostat?
Disabling voice commands on a smart thermostat can vary depending on the make and model, but here are some general steps you can follow:
- Consult the Manual: Start by checking the user manual for specific instructions related to your thermostat. It often has details on the features and settings.
- Mobile App Settings: Open the app associated with your thermostat. Navigate to the settings or device preferences section. Look for an option related to voice commands or voice control and toggle it off.
- Device Settings: If your thermostat has a touchscreen or physical buttons, access the settings directly on the device. Look for a voice control or voice assistant option and turn it off.
- Voice Assistant App: If the thermostat is integrated with external voice assistants like Amazon Alexa, Google Assistant, or Apple HomeKit, you may need to disable the specific skill or unlink the device in the respective app settings.
- Privacy or Security Settings: Some thermostats have a privacy or security section where you can manage voice and data settings.
- Restart Device: After making changes, it may be necessary to restart your thermostat to ensure that the settings are applied.
If you're unable to find the option or if these steps don't apply to your thermostat, consider contacting the manufacturer's customer support for assistance.
What is required for my smart thermostat to recognize voice commands?
For your smart thermostat to recognize voice commands, you'll need several key components and configurations:
- Compatible Smart Thermostat: Ensure your thermostat model supports voice commands. Popular brands include Nest, Ecobee, and Honeywell, among others.
- Voice Assistant Integration: Your thermostat must be compatible with a voice assistant like Amazon Alexa, Google Assistant, or Apple Siri.
- Stable Wi-Fi Connection: A stable internet connection is necessary for your thermostat to communicate with the voice assistant cloud services.
- Voice-Activated Device: A device like an Amazon Echo, Google Home, or Apple HomePod is required to pick up your voice and relay the command to the thermostat.
- Account Setup and Linking: You’ll need to create accounts for both the thermostat app and the voice assistant service. Then, link these accounts to enable communication between them.
- Device Configuration: Use the thermostat app and the voice assistant app to pair your devices and configure settings, such as naming the device and setting up room locations.
- Permissions and Skills/Actions: Enable necessary permissions and any specific skills (Amazon) or actions (Google) for the smart thermostat within the voice assistant’s ecosystem.
- Voice Command Features: Familiarize yourself with the available voice commands supported by your thermostat and voice assistant, such as setting temperatures, changing modes, or scheduling.
- Firmware Updates: Keep your thermostat's firmware updated to ensure compatibility and access to the latest voice command features.
By integrating and configuring these components, your smart thermostat should be able to effectively recognize and respond to voice commands.