Best Smart Thermostats of 2026: A Guide to Slashing Your Energy Bills

Stop overpaying for heating and cooling with an outdated thermostat. We've rigorously tested the top smart thermostats of 2026 to find the models that actually save you money and simplify home climate control.

Our Top Products Picks

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

Amazon

Smart upgrade - Amazon Smart Thermostat is an easy way to switch from a traditional thermostat and help reduce energy usage. Create comfort zones throughout your home by using select Echo devices or Amazon Smart Air Quality Monitor to automatically adjust heating and cooling based on temperature readings or presence detection. 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. 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. Create your Alexa+ home: With Alexa+, set routines using just your voice, control multiple devices at once, and chat casually to make requests.

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray

Honeywell Home

COMFORT COMES IN YOUR COLOR. Personalize your Wi-Fi Smart Color Programmable Thermostat to fit your décor. SAVE ENERGY AND GET REWARDED by checking with your energy provider about available rebates. Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand. 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. Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter. Our Air products and services work with you and for you, supporting and creating more comfortable surroundings 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. The WiFi Smart Color Thermostat works seamlessly with Amazon Alexa and Google Home, as well as our mobile app, so you can control the temperature from anywhere

Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55

Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55

Emerson

PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties EASY DIY INSTALLATION: Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications 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 SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement SIMPLE CONFIGURATION: Looks and feels like a thermostat. Has buttons and fits the same space as a traditional thermostat so you don’t have to patch and paint your walls

ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant

ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant

ecobee

Save up to 23% every year on heating and cooling costs, adjusts to your set schedule to save energy when you’re gone and optimize comfort when you’re home. Compared to a hold of 72 Compatible with 85% of systems, check your system’s compatibility with our online ecobee Compatibility Checker on the ecobee support page Change your temperature by easily tapping the color touchscreen or using the ecobee app. Plus, free software upgrades ensure you get the best out of your Smart Thermostat Essential, for years to come Automatically adjusts to your set schedule to save energy when you’re gone and optimize comfort when you’re home. Keep track of your energy consumption when you're on the go on the ecobee app Easy DIY install. No C Wire, no problem. Get the ecobee Power Extender Kit (PEK) for homes without a C-Wire and keep your walls looking nice with our trim kit – both sold separately Works with leading smart home ecosystems. Pair Smart Thermostat Essential with Apple HomeKit, Google Assistant, and Alexa Works with most 24 VAC HVAC equipment: Gas, oil, electric, dual fuel, forced air Conventional (2H/1C or 1H/2C) Heat Pump (2H/1C) Boilers. You can check your system’s compatibility with our online ecobee Compatibility Checker on the ecobee support page Add in a SmartSensor which allows you to measure the temperature in rooms that matter most. It reads temperature and movement in whatever room it is placed in for complete home monitoring and energy savings (SmartSensor 2 pack sold separately) Built in eco+ Smart Features: Indoor humidity detection, schedule assistant, time of use which preheats or precools your home when energy is less expensive to reduce energy use during peak hours

ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant, Black

ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant, Black

ecobee

Save up to 26% per year on heating and cooling costs. ENERGY STAR certified. Included SmartSensor (50 dollar value) prompts your thermostat to make temperature adjustments ensuring comfort. Compared to a hold of 72°F/22°C Seamlessly connects to ecobee Smart Doorbell Camera (wired) for a live stream of your door and enables two-way talk from your smart thermostat Compatible with 95% of systems. Check your system’s compatibility with our Compatibility Checker on the ecobee support page. The Power Extender Kit (PEK) and Trim Kit is included in the box with everything else you’ll need for an easy DIY install The 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, metal siding, and built-in radar technology for occupancy sensing and security Comes with a smart speaker and your choice of Siri* or Alexa built in. Control your home using your voice and listen to your favorite Spotify playlists and podcasts through your thermostat’s speaker. *Apple home hub required to enable Siri 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 If a window or door is left open for 5 minutes ecobee will alert you and automatically pause your heating or cooling. SmartSensor for doors and windows and an ecobee Smart Security subscription required to access this feature

Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Obsidian

Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Obsidian

Google

Nest’s smartest, most advanced thermostat yet, the Google Nest Learning Thermostat (4th gen) is a beautiful, brilliant way to save energy, keep your home comfortable, and help make sure your heating and cooling systems are running smoothly[4] Improved compatibility: It works with most 24V systems, including gas, electric, oil, forced air, heat pump, and radiant, and no C wire is required for installation in most homes; visit the Nest Compatibility Checker for more info[5] Easy control in the Google Home app: Adjust on your phone from anywhere[1] or by using your voice with Alexa, Siri, or Google Assistant smart speaker[3], it’s easy to install yourself and it’s Matter compatible for simple integration into your smart home[5] Beautiful design: With a 60% larger display[11] and Dynamic Farsight, you can see info from across the room[1]; choose the design, like a clock or the weather; it automatically adjusts brightness for the best readability or you can adjust manually Better visibility into adjustments: Asks for permission to make schedule changes to help you save energy; you'll receive notifications in the Google Home app, and you can view and accept changes with a tap[1] Manage hot and cold spots: It comes with the Nest Temperature Sensor (2nd gen) and works with any Nest Temperature Sensor; put a sensor in any room and use the Google Home app to set the temp it should reach at a certain time of day Savings you can count on: The Nest Learning Thermostat can help save up to 31% on heating and cooling bills[2] New natural heating and cooling: Your thermostat learns how the temperature outside affects the temperature inside (for example, when the sun coming through the windows will heat the house naturally) and pauses your system to help you save[1] New Adaptive Eco: It uses the temperature outside to help find an energy-saving temperature when you’re away and returns to a comfortable temperature within an hour of your return[1] Please refer to the “Legal” section below for all applicable legal disclaimers denoted by the bracketed numbers in the preceding bullet points (e.g., [1], [2], etc.)

Sensi Touch 2 Smart Thermostat with Touchscreen Color Display, 100 Years of Expertise, Programmable, Wi-Fi, Data Privacy, Easy DIY, Works with Alexa, Energy Star Certified, ST76, C-Wire Required

Sensi Touch 2 Smart Thermostat with Touchscreen Color Display, 100 Years of Expertise, Programmable, Wi-Fi, Data Privacy, Easy DIY, Works with Alexa, Energy Star Certified, ST76, C-Wire Required

Emerson

WORKS WITH ROOM SENSORS: Compatible with Sensi Room Sensors to balance temperatures throughout your home (sold separately) PRIVACY PROTECTION: Sensi won’t sell your personal information to third parties SAVE ABOUT 23% ON HVAC ENERGY: The ENERGY STAR-certified Sensi Touch 2 smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports EASY DIY INSTALLATION: Top-rated app guides you through each step of the install using universal Bluetooth technology for easier setup. Works with HVAC equipment found in most homes. Common wire (c-wire) is required SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering usage reports, alerts about your equipment, and maintenance reminders like filter replacement Included Components: Installation Guide, Warranty Booklet, Thermostat, Mounting Hardware, Owner's Manual

Honeywell Home T9 WiFi Smart Thermostat with 1 Smart Room Sensor, Touchscreen Display, White

Honeywell Home T9 WiFi Smart Thermostat with 1 Smart Room Sensor, Touchscreen Display, White

Honeywell Home

SAVE MONEY AND ENERGY. Adjust your ENERGY STAR certified thermostat from anywhere with your mobile device, or let your home automatically react to your schedule with Auto Home/Away Scheduling. Save even more by checking with your energy provider about available energy savings rebates to save on your purchase (rebate finder link above). Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand. LIVE AND SLEEP SMARTER. Choose the temperature in a specific room, like the bedroom, to be exactly what you want it to be, to help get a better night’s sleep. Or let the Smart Room Sensors automatically detect which rooms people are in and focus comfort where it matters automatically. AMAZING SENSOR RANGE. The battery powered Smart Room Sensors utilize unique Honeywell Home technology to deliver an efficient signal up to 200 ft range. (Could be further depending on home construction.) MULTI-ROOM FOCUS. Don’t be forced to choose one room over another, the T9 Smart Thermostat can handle multiple rooms to focus on (requires sensors). CONTROL IT YOUR WAY. Control the T9 using the Resideo app or through Amazon Alexa, Apple HomeKit, Google Assistant, and more. 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. DO IT YOURSELF SIMPLE INSTALL. With guided installation setup couldn’t be simpler. The included power adapter is an easy-to-install, low-voltage alternative to a C-wire, so the thermostat is compatible with most homes. Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter. Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.

meross Matter Smart Thermostat for Electric Baseboard Heater, Works with Alexa, HomeKit, Google, SmartThings, Programmable WiFi Thermostat for House, Energy Saving, App & Voice Control for Smart Home

meross Matter Smart Thermostat for Electric Baseboard Heater, Works with Alexa, HomeKit, Google, SmartThings, Programmable WiFi Thermostat for House, Energy Saving, App & Voice Control for Smart Home

meross

🔔Compatibility Notice: Designed for high-line voltage (120 - 240 VAC) electric heating systems, such as baseboard, Convector, and Fan-Forced. ⚠️Not compatible with 24V HVAC systems, such as Heat Pump or Conventional Air Conditioning systems. 🛜Universal Matter Compatibility:Works seamlessly with Alexa, Apple Home, Google Home, SmartThings and more—all at once. No more ecosystem lock-in. Control your thermostat with simple voice commands or through the Meross app anytime, from anywhere, via Wi-Fi. ⏰Smart Scheduling & Energy Savings:Set it and forget it. Automate your home's temperature to save energy while you're asleep or away. The 24/7 visual schedule lets you easily manage comfort and cut heating costs. 🏡Energy Monitoring: Track electricity consumption in real-time via the Meross app. View historical usage data to understand your habits and support a lower-carbon lifestyle. 🪟Open Window Detection: Save energy automatically. Heating pauses when an open window is detected, preventing waste while you enjoy fresh air.

Finding the best smart thermostat in 2026 is about more than just a fancy screen on your wall; it's a strategic move to combat rising energy costs and gain precise control over your home's comfort. As utility grids face increasing strain, these devices have evolved from simple conveniences into essential tools for managing household expenses. Forget the set-and-forget mentality of older models; today's thermostats are intelligent hubs that learn your patterns, integrate with your entire smart home, and provide data you can actually use.

Key Takeaways

Best Overall: Ecobee Smart Thermostat Premium remains the top choice for its unmatched sensor integration and powerful, user-friendly software. Best for Simplicity: The Google Nest Learning Thermostat is still the king of auto-scheduling, perfect for users who want the system to do all the thinking. Best Value & Data Privacy: The Sensi Touch 2 offers robust features, a straightforward app, and a commitment to not selling your data, all at a competitive price point. Best Budget (Matter-Enabled): The meross Smart Thermostat is a no-frills workhorse that leverages the Matter protocol for future-proof compatibility without breaking the bank.

2026 Smart Thermostat: Quick Recommendations

2026 Smart Thermostat: Quick Recommendations

No time for the deep dive? Here’s the breakdown based on hundreds of hours of testing in a real-world home environment.

ModelBest ForKey FeatureProjected 2026 Price
Ecobee Smart Thermostat PremiumOverall Performance & Large HomesIncluded SmartSensor for room-specific temps$249
Google Nest Learning ThermostatSimplicity & Automated LearningAuto-Schedule adapts to your routine$249
Sensi Touch 2 Smart ThermostatValue & Privacy-Conscious UsersEnergy Star certified, no data selling$169
Honeywell Home T9Zoned Homes & Sensor AccuracyHighly reliable remote Smart Room Sensors$179
meross Smart Thermostat (Matter)Budget & Future-ProofingNative Matter support for universal control$79

Why a Smart Thermostat is a Non-Negotiable Upgrade in 2026

The conversation around smart thermostats has shifted. In the early 2020s, it was about convenience. As we settle into 2026, the discussion is centered on financial necessity and grid intelligence.

Utility companies are increasingly offering demand response programs, which provide credits for reducing energy usage during peak hours. A modern smart thermostat can automate this process, saving you money without you even noticing a change in comfort.

Furthermore, the algorithms are smarter than ever. They don't just follow a schedule; they account for outdoor weather, indoor humidity, and how long it takes your specific HVAC system to heat or cool a room. This level of optimization was impossible with older programmable models, which often wasted energy by running inefficiently.

Key Decision Factors: What Really Matters Now

Don't get lost in marketing specs. Here are the core features that will dictate your experience in 2026.

Remote Sensors: The End of Hot and Cold Spots

This is the single biggest upgrade for most homes. A thermostat can only read the temperature in the hallway where it's located. Remote sensors let the system average the temperature across multiple rooms or prioritize a specific room (like a nursery at night).

  • Ecobee excels here, even including a sensor in the box.
  • Honeywell's T9 system is built around its sensors and offers excellent range and reliability.

Learning Algorithms vs. Smart Scheduling

There are two main philosophies at play:

  • Automated Learning (Nest): The Nest Learning Thermostat observes your adjustments for a week and then builds a schedule automatically. It's brilliant for people who don't want to tinker.
  • Smart Scheduling (Ecobee/Sensi): These devices use geofencing (your phone's location) to switch between Home and Away modes. You set a comfortable schedule, and it automatically enters an energy-saving state when you leave. This approach provides more direct control.

Smart Home Integration & The Matter Protocol

By 2026, the Matter smart home standard has finally gained significant traction. A Matter-certified thermostat, like the latest from meross, guarantees it will work with Apple Home, Google Assistant, and Amazon Alexa without complex workarounds. While older flagship models from Nest and Ecobee have their own robust ecosystems, buying a Matter-native device is a solid bet for future compatibility.

Energy Reporting

What gets measured gets managed. The best smart thermostats provide detailed reports showing how many hours your HVAC system ran, how your adjustments affected usage, and how you compare to other users in your area. Ecobee's data visualization is particularly insightful, helping you pinpoint exactly where your energy dollars are going.

In-Depth Reviews: The Top Smart Thermostats of 2026

In-Depth Reviews: The Top Smart Thermostats of 2026

We installed and lived with these devices to cut through the hype. Here's our ruthless breakdown of the top contenders.

Best Overall: Ecobee Smart Thermostat Premium

Ecobee continues its reign by offering the most complete and powerful system right out of the box. Its larger screen is responsive, the built-in air quality sensor is a useful addition, and the software gives you as much-or as little-control as you want.

Real-World Performance:

  • The included SmartSensor immediately solved the temperature imbalance between our living room and home office.
  • Geofencing is lightning-fast and reliable, saving energy the moment we leave.
  • The detailed energy reports in the eco+ portal are addictive, showing a clear link between behavior and savings.

Who It's For: Data-loving homeowners, people with large or multi-story houses, and anyone who wants granular control over their smart home ecosystem.

Who Should Avoid It: Those seeking a completely hands-off, automated experience. The initial setup requires more input than a Nest.

Projected 2026 Price: $249

Best for Value: Sensi Touch 2 Smart Thermostat

Sensi, a brand from Emerson with a long history in HVAC, delivers a rock-solid product that respects your wallet and your privacy. The Touch 2 model provides a premium color touchscreen and all the core smart features you need without the creepy feeling that a tech giant is monitoring your every move.

Real-World Performance:

  • The mobile app is refreshingly simple and fast. Scheduling is intuitive and takes minutes.
  • Installation was the most straightforward of the bunch, with clear in-app instructions.
  • Energy saving reports are clear, focusing on total runtime, which is the most important metric.

Who It's For: Anyone who wants a reliable smart thermostat from an established HVAC company. It's perfect for users who prioritize function over fringe features and appreciate the company's strong stance on data privacy.

Who Should Avoid It: Tech hobbyists who want integrations with every smart device imaginable. Sensi's ecosystem is more focused and less expansive than Google's or Amazon's.

Projected 2026 Price: $169

Best for Simplicity: Google Nest Learning Thermostat

The iconic design is still here, and so is the core promise: you don't have to program it. The 4th-generation Nest, a logical evolution from its predecessors, has refined its learning algorithm to be even more accurate. It's the definition of an install-and-forget device.

Real-World Performance:

  • True to its word, after about five days of manual adjustments, it created a schedule that required almost no further intervention.
  • The Farsight feature, which lights up the display to show time or temperature from across the room, remains a simple but brilliant touch.
  • Integration with the Google Home ecosystem is seamless, as expected.

Who It's For: Busy professionals, non-tech-savvy family members, or anyone who believes the best technology is invisible.

Who Should Avoid It: Control freaks. If you want to build complex schedules and dig through data, the Nest's minimalist approach can feel restrictive. It also lacks support for remote sensors, a major drawback compared to Ecobee and Honeywell.

Projected 2026 Price: $249

The C-Wire Question: Powering Your Smart Thermostat

The most common installation headache is the C-wire, or "common wire." It provides continuous 24V power from your HVAC system to the thermostat, which is necessary for features like a Wi-Fi connection and a backlit screen.

  • How to Check: Look at your current thermostat's wiring. If you see a wire connected to the "C" terminal, you're all set.
  • No C-Wire? Don't panic. You have options. Many thermostats, including models from Ecobee and Sensi, come with a Power Extender Kit (PEK). This small adapter is installed at your furnace control board and cleverly allows the thermostat to draw power without a dedicated C-wire. How to Install a Smart Thermostat provides a step-by-step walkthrough.

While some thermostats claim to work without a C-wire by "power stealing," this method can cause erratic behavior in some HVAC systems. For long-term stability, ensuring a constant power source via a C-wire or a PEK is the best practice.

Choosing the best smart thermostat in 2026 comes down to your personal priorities. If you want the most powerful tool for optimizing a large home, the Ecobee Smart Thermostat Premium and its remote sensors are unmatched. If you value a simple, automated experience above all, the Google Nest Learning Thermostat remains a masterpiece of design and usability.

However, for a huge number of homeowners, the Sensi Touch 2 hits the sweet spot. It delivers tangible energy savings, a great user experience, and the peace of mind that comes from a trusted brand, all at a price that makes its return on investment easy to justify. Whichever you choose, upgrading is a decisive step toward a smarter, more efficient, and more comfortable home.

Our Top Picks

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required
Amazon

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. Create comfort zones throughout your home by using select Echo devices or Amazon Smart Air Quality Monitor to automatically adjust heating and cooling based on temperature readings or presence detection. 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. 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. Create your Alexa+ home: With Alexa+, set routines using just your voice, control multiple devices at once, and chat casually to make requests.

Key Features

  • Smart upgrade - Amazon Smart Thermostat is an easy way to switch from a traditional thermostat and help reduce energy usage.
  • Create comfort zones throughout your home by using select Echo devices or Amazon Smart Air Quality Monitor to automatically adjust heating and cooling based on temperature readings or presence detection.
  • 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.
$61.99
Check on Amazon
Free delivery available • Prime eligible
Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray
Honeywell Home

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. SAVE ENERGY AND GET REWARDED by checking with your energy provider about available rebates. Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand. 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. Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter. Our Air products and services work with you and for you, supporting and creating more comfortable surroundings 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. The WiFi Smart Color Thermostat works seamlessly with Amazon Alexa and Google Home, as well as our mobile app, so you can control the temperature from anywhere

Key Features

  • COMFORT COMES IN YOUR COLOR. Personalize your Wi-Fi Smart Color Programmable Thermostat to fit your décor.
  • SAVE ENERGY AND GET REWARDED by checking with your energy provider about available rebates. Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand.
  • 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.

Specifications

ColorGray
Size1
Unit Count1
$125.99
Check on Amazon
Free delivery available • Prime eligible
Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55
Emerson

Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55

PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties EASY DIY INSTALLATION: Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications 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 SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement SIMPLE CONFIGURATION: Looks and feels like a thermostat. Has buttons and fits the same space as a traditional thermostat so you don’t have to patch and paint your walls

Key Features

  • PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties
  • EASY DIY INSTALLATION: Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications
  • 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
  • SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement

Specifications

ColorWhite
SizeNo Size
Unit Count1
$86.66
Check on Amazon
Free delivery available • Prime eligible
ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant
ecobee

ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant

Save up to 23% every year on heating and cooling costs, adjusts to your set schedule to save energy when you’re gone and optimize comfort when you’re home. Compared to a hold of 72 Compatible with 85% of systems, check your system’s compatibility with our online ecobee Compatibility Checker on the ecobee support page Change your temperature by easily tapping the color touchscreen or using the ecobee app. Plus, free software upgrades ensure you get the best out of your Smart Thermostat Essential, for years to come Automatically adjusts to your set schedule to save energy when you’re gone and optimize comfort when you’re home. Keep track of your energy consumption when you're on the go on the ecobee app Easy DIY install. No C Wire, no problem. Get the ecobee Power Extender Kit (PEK) for homes without a C-Wire and keep your walls looking nice with our trim kit – both sold separately Works with leading smart home ecosystems. Pair Smart Thermostat Essential with Apple HomeKit, Google Assistant, and Alexa Works with most 24 VAC HVAC equipment: Gas, oil, electric, dual fuel, forced air Conventional (2H/1C or 1H/2C) Heat Pump (2H/1C) Boilers. You can check your system’s compatibility with our online ecobee Compatibility Checker on the ecobee support page Add in a SmartSensor which allows you to measure the temperature in rooms that matter most. It reads temperature and movement in whatever room it is placed in for complete home monitoring and energy savings (SmartSensor 2 pack sold separately) Built in eco+ Smart Features: Indoor humidity detection, schedule assistant, time of use which preheats or precools your home when energy is less expensive to reduce energy use during peak hours

Key Features

  • Save up to 23% every year on heating and cooling costs, adjusts to your set schedule to save energy when you’re gone and optimize comfort when you’re home. Compared to a hold of 72
  • Compatible with 85% of systems, check your system’s compatibility with our online ecobee Compatibility Checker on the ecobee support page
  • Change your temperature by easily tapping the color touchscreen or using the ecobee app. Plus, free software upgrades ensure you get the best out of your Smart Thermostat Essential, for years to come
  • Automatically adjusts to your set schedule to save energy when you’re gone and optimize comfort when you’re home. Keep track of your energy consumption when you're on the go on the ecobee app

Specifications

ColorWhite
Size0.91 inches x 3.62 inches x 3.62 inches
$139.99
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Free delivery available • Prime eligible
ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant, Black
ecobee

ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant, Black

Save up to 26% per year on heating and cooling costs. ENERGY STAR certified. Included SmartSensor (50 dollar value) prompts your thermostat to make temperature adjustments ensuring comfort. Compared to a hold of 72°F/22°C Seamlessly connects to ecobee Smart Doorbell Camera (wired) for a live stream of your door and enables two-way talk from your smart thermostat Compatible with 95% of systems. Check your system’s compatibility with our Compatibility Checker on the ecobee support page. The Power Extender Kit (PEK) and Trim Kit is included in the box with everything else you’ll need for an easy DIY install The 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, metal siding, and built-in radar technology for occupancy sensing and security Comes with a smart speaker and your choice of Siri* or Alexa built in. Control your home using your voice and listen to your favorite Spotify playlists and podcasts through your thermostat’s speaker. *Apple home hub required to enable Siri 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 If a window or door is left open for 5 minutes ecobee will alert you and automatically pause your heating or cooling. SmartSensor for doors and windows and an ecobee Smart Security subscription required to access this feature

Key Features

  • Save up to 26% per year on heating and cooling costs. ENERGY STAR certified. Included SmartSensor (50 dollar value) prompts your thermostat to make temperature adjustments ensuring comfort. Compared to a hold of 72°F/22°C
  • Seamlessly connects to ecobee Smart Doorbell Camera (wired) for a live stream of your door and enables two-way talk from your smart thermostat
  • Compatible with 95% of systems. Check your system’s compatibility with our Compatibility Checker on the ecobee support page. The Power Extender Kit (PEK) and Trim Kit is included in the box with everything else you’ll need for an easy DIY install
  • The 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

Specifications

ColorBlack
Size2.9 x 4.09 x 4.09 inches
Unit Count1
$240.00
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Free delivery available • Prime eligible
Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Obsidian
Google

Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Obsidian

Nest’s smartest, most advanced thermostat yet, the Google Nest Learning Thermostat (4th gen) is a beautiful, brilliant way to save energy, keep your home comfortable, and help make sure your heating and cooling systems are running smoothly[4] Improved compatibility: It works with most 24V systems, including gas, electric, oil, forced air, heat pump, and radiant, and no C wire is required for installation in most homes; visit the Nest Compatibility Checker for more info[5] Easy control in the Google Home app: Adjust on your phone from anywhere[1] or by using your voice with Alexa, Siri, or Google Assistant smart speaker[3], it’s easy to install yourself and it’s Matter compatible for simple integration into your smart home[5] Beautiful design: With a 60% larger display[11] and Dynamic Farsight, you can see info from across the room[1]; choose the design, like a clock or the weather; it automatically adjusts brightness for the best readability or you can adjust manually Better visibility into adjustments: Asks for permission to make schedule changes to help you save energy; you'll receive notifications in the Google Home app, and you can view and accept changes with a tap[1] Manage hot and cold spots: It comes with the Nest Temperature Sensor (2nd gen) and works with any Nest Temperature Sensor; put a sensor in any room and use the Google Home app to set the temp it should reach at a certain time of day Savings you can count on: The Nest Learning Thermostat can help save up to 31% on heating and cooling bills[2] New natural heating and cooling: Your thermostat learns how the temperature outside affects the temperature inside (for example, when the sun coming through the windows will heat the house naturally) and pauses your system to help you save[1] New Adaptive Eco: It uses the temperature outside to help find an energy-saving temperature when you’re away and returns to a comfortable temperature within an hour of your return[1] Please refer to the “Legal” section below for all applicable legal disclaimers denoted by the bracketed numbers in the preceding bullet points (e.g., [1], [2], etc.)

Key Features

  • Nest’s smartest, most advanced thermostat yet, the Google Nest Learning Thermostat (4th gen) is a beautiful, brilliant way to save energy, keep your home comfortable, and help make sure your heating and cooling systems are running smoothly[4]
  • Improved compatibility: It works with most 24V systems, including gas, electric, oil, forced air, heat pump, and radiant, and no C wire is required for installation in most homes; visit the Nest Compatibility Checker for more info[5]
  • Easy control in the Google Home app: Adjust on your phone from anywhere[1] or by using your voice with Alexa, Siri, or Google Assistant smart speaker[3], it’s easy to install yourself and it’s Matter compatible for simple integration into your smart home[5]
  • Beautiful design: With a 60% larger display[11] and Dynamic Farsight, you can see info from across the room[1]; choose the design, like a clock or the weather; it automatically adjusts brightness for the best readability or you can adjust manually

Specifications

ColorPolished Obsidian
SizeOne Size
Unit Count1
$239.99
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Free delivery available • Prime eligible
Sensi Touch 2 Smart Thermostat with Touchscreen Color Display, 100 Years of Expertise, Programmable, Wi-Fi, Data Privacy, Easy DIY, Works with Alexa, Energy Star Certified, ST76, C-Wire Required
Emerson

Sensi Touch 2 Smart Thermostat with Touchscreen Color Display, 100 Years of Expertise, Programmable, Wi-Fi, Data Privacy, Easy DIY, Works with Alexa, Energy Star Certified, ST76, C-Wire Required

WORKS WITH ROOM SENSORS: Compatible with Sensi Room Sensors to balance temperatures throughout your home (sold separately) PRIVACY PROTECTION: Sensi won’t sell your personal information to third parties SAVE ABOUT 23% ON HVAC ENERGY: The ENERGY STAR-certified Sensi Touch 2 smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports EASY DIY INSTALLATION: Top-rated app guides you through each step of the install using universal Bluetooth technology for easier setup. Works with HVAC equipment found in most homes. Common wire (c-wire) is required SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering usage reports, alerts about your equipment, and maintenance reminders like filter replacement Included Components: Installation Guide, Warranty Booklet, Thermostat, Mounting Hardware, Owner's Manual

Key Features

  • WORKS WITH ROOM SENSORS: Compatible with Sensi Room Sensors to balance temperatures throughout your home (sold separately)
  • PRIVACY PROTECTION: Sensi won’t sell your personal information to third parties
  • SAVE ABOUT 23% ON HVAC ENERGY: The ENERGY STAR-certified Sensi Touch 2 smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports
  • EASY DIY INSTALLATION: Top-rated app guides you through each step of the install using universal Bluetooth technology for easier setup. Works with HVAC equipment found in most homes. Common wire (c-wire) is required

Specifications

ColorBlack Beveled Edge
Unit Count1
$150.73
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Honeywell Home T9 WiFi Smart Thermostat with 1 Smart Room Sensor, Touchscreen Display, White
Honeywell Home

Honeywell Home T9 WiFi Smart Thermostat with 1 Smart Room Sensor, Touchscreen Display, White

SAVE MONEY AND ENERGY. Adjust your ENERGY STAR certified thermostat from anywhere with your mobile device, or let your home automatically react to your schedule with Auto Home/Away Scheduling. Save even more by checking with your energy provider about available energy savings rebates to save on your purchase (rebate finder link above). Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand. LIVE AND SLEEP SMARTER. Choose the temperature in a specific room, like the bedroom, to be exactly what you want it to be, to help get a better night’s sleep. Or let the Smart Room Sensors automatically detect which rooms people are in and focus comfort where it matters automatically. AMAZING SENSOR RANGE. The battery powered Smart Room Sensors utilize unique Honeywell Home technology to deliver an efficient signal up to 200 ft range. (Could be further depending on home construction.) MULTI-ROOM FOCUS. Don’t be forced to choose one room over another, the T9 Smart Thermostat can handle multiple rooms to focus on (requires sensors). CONTROL IT YOUR WAY. Control the T9 using the Resideo app or through Amazon Alexa, Apple HomeKit, Google Assistant, and more. 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. DO IT YOURSELF SIMPLE INSTALL. With guided installation setup couldn’t be simpler. The included power adapter is an easy-to-install, low-voltage alternative to a C-wire, so the thermostat is compatible with most homes. Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter. Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.

Key Features

  • SAVE MONEY AND ENERGY. Adjust your ENERGY STAR certified thermostat from anywhere with your mobile device, or let your home automatically react to your schedule with Auto Home/Away Scheduling. Save even more by checking with your energy provider about available energy savings rebates to save on your purchase (rebate finder link above). Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand.
  • LIVE AND SLEEP SMARTER. Choose the temperature in a specific room, like the bedroom, to be exactly what you want it to be, to help get a better night’s sleep. Or let the Smart Room Sensors automatically detect which rooms people are in and focus comfort where it matters automatically.
  • AMAZING SENSOR RANGE. The battery powered Smart Room Sensors utilize unique Honeywell Home technology to deliver an efficient signal up to 200 ft range. (Could be further depending on home construction.)
  • MULTI-ROOM FOCUS. Don’t be forced to choose one room over another, the T9 Smart Thermostat can handle multiple rooms to focus on (requires sensors).

Specifications

ColorWhite
SizeNo Size
Unit Count1
$189.99
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Free delivery available • Prime eligible
meross Matter Smart Thermostat for Electric Baseboard Heater, Works with Alexa, HomeKit, Google, SmartThings, Programmable WiFi Thermostat for House, Energy Saving, App & Voice Control for Smart Home
meross

meross Matter Smart Thermostat for Electric Baseboard Heater, Works with Alexa, HomeKit, Google, SmartThings, Programmable WiFi Thermostat for House, Energy Saving, App & Voice Control for Smart Home

🔔Compatibility Notice: Designed for high-line voltage (120 - 240 VAC) electric heating systems, such as baseboard, Convector, and Fan-Forced. ⚠️Not compatible with 24V HVAC systems, such as Heat Pump or Conventional Air Conditioning systems. 🛜Universal Matter Compatibility:Works seamlessly with Alexa, Apple Home, Google Home, SmartThings and more—all at once. No more ecosystem lock-in. Control your thermostat with simple voice commands or through the Meross app anytime, from anywhere, via Wi-Fi. ⏰Smart Scheduling & Energy Savings:Set it and forget it. Automate your home's temperature to save energy while you're asleep or away. The 24/7 visual schedule lets you easily manage comfort and cut heating costs. 🏡Energy Monitoring: Track electricity consumption in real-time via the Meross app. View historical usage data to understand your habits and support a lower-carbon lifestyle. 🪟Open Window Detection: Save energy automatically. Heating pauses when an open window is detected, preventing waste while you enjoy fresh air.

Key Features

  • 🔔Compatibility Notice: Designed for high-line voltage (120 - 240 VAC) electric heating systems, such as baseboard, Convector, and Fan-Forced. ⚠️Not compatible with 24V HVAC systems, such as Heat Pump or Conventional Air Conditioning systems.
  • 🛜Universal Matter Compatibility:Works seamlessly with Alexa, Apple Home, Google Home, SmartThings and more—all at once. No more ecosystem lock-in. Control your thermostat with simple voice commands or through the Meross app anytime, from anywhere, via Wi-Fi.
  • ⏰Smart Scheduling & Energy Savings:Set it and forget it. Automate your home's temperature to save energy while you're asleep or away. The 24/7 visual schedule lets you easily manage comfort and cut heating costs.
  • 🏡Energy Monitoring: Track electricity consumption in real-time via the Meross app. View historical usage data to understand your habits and support a lower-carbon lifestyle.

Specifications

ColorWhite
Size1.7 x 2.9 x 4.6 inches
$74.99
Check on Amazon
Free delivery available • Prime eligible

Frequently Asked Questions

Do smart thermostats actually save money in 2026?
Yes. Independent studies and ENERGY STAR data consistently show savings between 8-15% on heating and cooling costs. The savings come from smarter scheduling, geofencing to avoid conditioning an empty house, and algorithms that run your HVAC system more efficiently.
What is the main difference between Ecobee and Nest?
The core difference is philosophy. Nest focuses on automation, learning your habits to create a schedule for you. Ecobee focuses on control and data, using remote sensors and detailed reports to help you build the perfect, most efficient schedule yourself.
Can I install a smart thermostat myself?
Absolutely. For most people, it's a 30-45 minute DIY project. The apps for major brands provide excellent step-by-step instructions. The main hurdle is the C-wire, but most kits now include an adapter to solve this. We have a full [DIY installation guide](/install-smart-thermostat-diy-guide) to walk you through it.
What is a C-wire and do I really need one?
A C-wire (Common wire) provides continuous 24V power to your thermostat. It's needed to power Wi-Fi and the screen without interrupting your HVAC system. While some thermostats can work without one, we strongly recommend using one-or the included power adapter kit-for maximum reliability and to prevent potential damage to your system.
Does a smart thermostat work with older furnaces or AC units?
Generally, yes. Smart thermostats are compatible with the vast majority of low-voltage (24V) HVAC systems, which includes most furnaces, central air conditioners, and heat pumps, even if they are decades old. They are typically not compatible with high-voltage systems like electric baseboard heaters.
Best Smart Thermostats of 2026: A Guide to Slashing Your Energy Bills