7 Best Smart Thermostats for Energy Savings in 2026

In 2026, choosing the right smart thermostat can notably cut energy bills while keeping your home comfortable, but with so many options—each boasting unique features—it’s easy to get overwhelmed. From devices with voice control and compatibility with smart home systems to those with advanced scheduling or energy monitoring, the best choices blend cutting-edge technology with user-friendly interfaces. Want to discover which models stand out and why they might be your smartest home upgrade yet?

Amazon Smart Thermostat with Alexa and Ring Compatibility

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...
  • 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...

The Amazon Smart Thermostat with Alexa and Ring works well if you want to control your home’s temperature easily. It’s small, measuring just 3.56 inches on each side, and it weighs less than four ounces. So, it’s simple to install. It works with most 24V heating and cooling systems like forced air heaters, heat pumps, and radiant boilers.

This thermostat helps save energy. It learns your habits with Thermostat Hunches and adjusts your temperature automatically to keep you comfortable and save money. You can control it with your voice through Alexa, use the app, or press the touch buttons on the device.

To work properly, it needs a C-wire or an extra power adapter. It does not work with some older systems that use 110-240V power, like electric baseboards.

Best for: Homeowners who want an easy-to-use, energy-saving smart thermostat that works with Alexa and Ring for voice and app control.

Pros:

  • Simple to install with clear instructions and tools included.
  • Fits most 24V heating and cooling systems.
  • Has smart features like automatic adjustments and custom schedules.

Cons:

  • Doesn’t work with 110-240V systems.
  • Needs a C-wire or extra power adapter, which you may need to buy.
  • Uses only 2.4 GHz Wi-Fi, not 5 GHz or peer-to-peer networks.

ecobee Smart Thermostat Essential with Voice Compatibility

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....
  • 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...

If you want a smart thermostat that’s easy to install and works with popular voice assistants, the ecobee Smart Thermostat Essential might be a good choice. It helps you save money on energy, up to 23% each year. The thermostat is Energy Star certified, which means it’s good for the environment and energy-efficient. It connects to Wi-Fi and works with Siri, Alexa, and Google Assistant. So, you can talk to it or control it from your phone, whatever you prefer.

Installing the ecobee Smart Thermostat is simple. You can do it yourself, even if your home doesn’t have a traditional C-wire. It comes with a Power Extender Kit to make installation easier. The colorful touchscreen makes it easy to see and change settings. It also has eco+ features that help you save energy without making your home less comfortable. If you want to control the temperature in different rooms, optional SmartSensors are available. These sensors let you customize comfort and further save energy.

Best For: Homeowners who want an easy-to-install, flexible, and energy-saving smart thermostat compatible with popular voice devices.

Pros:

  • Easy to install yourself, even without a C-wire, thanks to the Power Extender Kit
  • Works with Siri, Alexa, and Google Assistant for voice control
  • Can save up to 23% on heating and cooling bills, paying for itself fast

Cons:

  • Optional SmartSensors cost extra
  • Doesn’t have many detailed customization options
  • Small screen size may be harder to see for some users

The ecobee Smart Thermostat Essential makes managing your heating and cooling easier, saving you money and giving you control through voice or your phone. It’s a simple and smart choice for many homes.

Sensi Smart Thermostat with Wi-Fi and Alexa

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

Looking for a easy-to-install smart thermostat? The Sensi Smart Thermostat (Model ST55) might be what you need. It connects to Wi-Fi and works with Alexa, so you can control it with your voice or your phone. It has a simple design with buttons, making installation quick and mess-free. You usually don’t need a c-wire, so it’s good for many homes. It’s ENERGY STAR certified, which helps you save about 23% on energy bills. Plus, it keeps your data private and doesn’t sell your info.

Best for: homeowners who want an easy, energy-saving smart thermostat that works with voice assistants like Alexa.

Pros:

  • Simple to install. Comes with a level and step-by-step app guides.
  • Works with most HVAC systems. No c-wire needed in many cases.
  • Saves energy, lowering bills by around 23%.

Cons:

  • Looks plain; it’s not as fancy as some smart thermostats.
  • Some older systems might need extra parts.
  • Needs Wi-Fi. If your internet goes out, remote control stops working.

If you want an easy, affordable way to control your heat and save energy, the Sensi thermostat could be a good choice.

Sensi Lite Smart Thermostat with Wi-Fi & Alexa

Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Easy DIY, Works With Alexa, Energy Star Certified, ST25, Most Systems C-Wire Not...
  • EASY DIY INSTALLATION: Do it yourself fast with a built-in level and simple step-by-step instructions. Works with the HVAC equipment found in most homes
  • COMMON WIRE REQUIREMENTS: Common wire(C-Wire) required for heat pump and heat/cool only systems. C-wire not required on most systems
  • SAVE ABOUT 23% ON HVAC ENERGY*: ENERGY STAR-certified and packed with features that help you save money, including flexible scheduling, geofencing, remote...

Looking for an easy-to-use thermostat? The Sensi Lite Smart Thermostat with Wi-Fi & Alexa could be just what you need. It is simple to install and control from your phone or with voice commands. The thermostat is made for DIYers, with a built-in level and step-by-step instructions. You don’t need to be a tech expert to set it up. Usually, it doesn’t need a C-wire unless you have specific systems like heat/cool or heat pumps.

With Wi-Fi, you can control the thermostat anywhere using an app. You can also ask Alexa or Google Assistant to change the temperature for you. The device has an LCD screen that shows current temperature and settings. It also allows you to create custom schedules so your home is always comfortable when you need it. Plus, it has features like geofencing that help save energy when you’re away. Being Energy Star certified, it can help reduce your energy bill by about 23%. It also comes with a 3-year warranty for peace of mind.

Who is it good for? If you want a budget-friendly, easy-to-install thermostat that can be controlled remotely and with voice commands, this is a great choice.

Pros:

  • Easy to install with a built-in level and step-by-step guides
  • Works with Alexa, Google Assistant, and SmartThings for voice control
  • Offers energy-saving features like schedules and geofencing
  • Energy Star certified, saving energy and money

Cons:

  • Usually needs a C-wire for heat/cool or heat pump systems, which may need extra work
  • The display is simple and may not have advanced features
  • Some users report connection or setup problems that need troubleshooting

If you want a simple, affordable smart thermostat that works with your voice and saves energy, the Sensi Lite is worth considering.

Meross WiFi Smart Thermostat with Voice Control

Best Offer
meross Smart Thermostat for Home, WiFi Thermostat Works with Matter, Alexa, Apple Home, Google Assistant, App & Voice Control, 7x24h Scheduling,...
  • Before You Buy: Meross smart thermostat for home is suitable for 95% of HVAC systems, including heat pump, air conditioner, furnace, boiler, dehumidifier,...
  • Seamless Matter Integration: This wifi thermostat integrates locally with Matter‑certified platforms such as Apple Home, Amazon Alexa, Google Home, Home...
  • Smart Schedule: Set it and forget it! The 24/7 flexible schedule plans allow you to customize your heating and cooling routine, whether you are at home, away,...

The Meross WiFi Smart Thermostat with Voice Control is a smart choice for homeowners. It is easy to use and works well with most HVAC systems. It can control traditional heating, cooling, and heat pumps. But, it does not work with electric baseboard heaters. You will need a C-wire or the Meross adapter if your system does not have one. The thermostat lets you set a schedule for 24 hours a day, 7 days a week. It can adjust itself automatically, even if your Wi-Fi goes offline.

You can also control the thermostat with your voice. It works with Apple, Amazon, Google, and Samsung voice assistants. This is possible thanks to its Matter support, a new standard for smart devices. The mobile app helps you see how much energy you use. This can save you money and help the environment.

Who should get this? If you want a simple, reliable smart thermostat that works with most HVAC systems and voice commands, this is a good option.

Pros:

  • Works with 95% of heating and cooling systems
  • Allows custom schedules, 24/7
  • Supports voice commands from popular platforms

Cons:

  • Does not work with electric baseboard heaters
  • Needs a C-wire or an adapter for systems without one
  • Only supports 2.4GHz Wi-Fi networks

This thermostat makes controlling your home simple. It helps save energy without extra fuss.

Honeywell Wi-Fi Smart Color Thermostat with Touch Screen

Best Offer
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...
  • YOUR SCHEDULE. YOUR WAY. Flexible programming options for your schedule or utility company’s peak rate pricing.

Looking for a smart thermostat that’s easy to personalize and works with many heating systems? The Honeywell Wi-Fi Smart Color Thermostat with Touch Screen could be just what you need. One of its best features is that you can change its color. This helps it match your home’s look, making your smart home feel more connected.

It works well with most forced air systems, hot water, steam, and heat pumps that have electric backup. Just check if your system has a C-wire to make sure it runs smoothly. You can set a 7-day schedule, which makes heating easy to plan. The bright touchscreen makes adjusting things simple. Plus, it’s compatible with Alexa, so you can control it with your voice.

It’s also ENERGY STAR certified. This means it helps you save energy and lower your bills. It’s a smart choice for anyone who wants a colorful, easy-to-use, and energy-saving thermostat that connects well with voice assistants.

Best for: Homeowners who want a fun, customizable, and energy-friendly thermostat that works with many heating setups and works with voice control.

Pros:

  • You can pick different colors to match your home.
  • Works with many types of heating systems, like hot water, steam, and heat pumps.
  • Has a clear touchscreen and a 7-day schedule for easy setup and adjustments.

Cons:

  • Needs a C-wire in your system to work properly.
  • Doesn’t work with electric baseboard heaters.
  • Might need some extra setup for demand response programs or rebates.

This thermostat is a simple, friendly way to keep your home comfortable, save energy, and add a splash of color to your wall.

ecobee Smart Thermostat with Voice Assistant Compatibility

ecobee 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 Automatically adjusts the temperature when you’re away to never heat or cool an empty home. Compared to a...
  • Compatible with 90% of systems so check your system’s compatibility with our Compatibility Checker on the ecobee support page. The Power Extender Kit (PEK)...
  • Built-in radar occupancy preheats or precools your home before you arrive so it’s the perfect temperature the moment you walk in. Automatically adjusts to...

The ecobee Smart Thermostat with Voice Assistant Compatibility is a great choice if you want a smart, energy-saving device. It helps you save up to 26% on heating and cooling costs each year. It does this by automatically adjusting the temperature before you get home or leave, so your house stays comfortable without wasting energy. The thermostat keeps the temperature just right when people are in the house and also controls humidity.

You can control the ecobee using voice commands with Siri, Alexa, Google Assistant, and other voice helpers. If you are away, you can also change the temperature from your phone using the ecobee app. It is easy to install because of the Power Extender Kit, and it works with most heating and cooling systems that run on 24 volts.

This thermostat is good for anyone who wants a simple way to save energy and control their home’s temperature with their voice or phone.

Pros:

  • Saves up to 26% on energy costs each year.
  • Works with popular voice commands like Siri, Alexa, and Google Assistant.
  • Easy to install with the included Power Extender Kit.
  • Fits most HVAC systems that run on 24 volts.

Cons:

  • You might want to add SmartSensors for better room comfort, which can cost more.
  • Some users find the app or advanced options hard to learn at first.
  • It only works with HVAC devices that support 24 volts, so older systems may not be compatible.

Factors to Consider When Choosing Smart Thermostats for Energy Savings

When choosing a smart thermostat, you’ll want to take into account how well it matches your HVAC system—some models are more versatile than others, and troubleshooting can get tricky. Don’t forget to look for energy-saving features like adaptive scheduling and humidity control, which can cut your bills without sacrificing comfort. Plus, intuitive controls and voice assistant compatibility make daily adjustments easier, while straightforward installation means you’re not trying to wrestle with wires all night.

Compatibility With HVAC Systems

Getting your smart thermostat to work with your HVAC system means checking if they match. First, see if the thermostat’s voltage and type match your system. For example, some systems are forced air, heat pumps, or boilers. Using the wrong type can cause trouble.

Some thermostats need a wire called a C-wire for power. Others can work without it using special options. Check your setup first before buying. You can use online tools or talk to the manual to see if the thermostat works with your system.

Make sure the thermostat can control all parts of your HVAC system. This includes extra heaters or multi-stage systems. These add more parts but can save energy.

Also, look at how your wires are set up. Some systems use standard wiring, while others have special wiring. Knowing this helps you avoid surprises when installing.

Making sure your thermostat is compatible is simple but important. It sets your smart home up for smooth and trouble-free use.

Energy Saving Features

Saving energy at home is easier now with smart thermostats. These thermostats have features that help cut your energy bills. They can learn your routines and turn temperatures down when no one is around or when you’re sleeping. This way, less energy gets wasted. Features like auto-away, adaptive schedules, and geofencing make heating and cooling smarter. They help save energy while keeping your home comfortable. Look for thermostats with the ENERGY STAR label. They meet strict rules for efficiency and save you money. Smart sensors can measure room conditions. They adjust the temperature in different areas of your home to avoid unnecessary heating or cooling. Some thermostats also replace air filters automatically or manage humidity. These tools work together to save energy easily. They help you keep your home comfortable and lower your bills without extra work.

User-Friendly Controls

Having controls that are easy to use is very important when choosing a smart thermostat. Touchscreens and buttons help you change settings quickly and accurately. This saves you time and stops you from getting frustrated. A simple menu and clear labels make it easy to find what you need, even if you’re not tech-savvy. The digital display shows the temperature, humidity, and schedule at a quick glance. This means you can check things without guesswork or searching. Some thermostats also work with voice commands. This allows you to control your thermostat with your voice, which is helpful if you’re busy or in a hurry. Easy installation and helpful app controls make it simple to get started without a lot of hassle. When controls are simple, using your thermostat feels almost effortless.

Voice Assistant Integration

When choosing a smart thermostat, think about if it works with voice assistants like Alexa, Google Assistant, or Siri. If it does, you can control it just by talking. No need to find an app or press buttons. Some models can understand natural speech, so you can say, “Set the temperature to 72,” and it gets it right. This makes controlling your heat and cool quickly and easily.

Voice control can do more than just turn the thermostat up or down. You can set routines. For example, say ‘Goodnight’ to lower the heat or arrive home, and the thermostat will adjust itself. This helps save energy without effort.

But, not all thermostats work with every voice assistant. Check before you buy to see if it supports your preferred platform. Adding voice control is a simple step that can make managing your home more convenient and save energy.

Installation Simplification

Choosing a thermostat that’s easy to set up can save you time and frustration. Look for models with a built-in level and clear instructions. These make installation simple and quick. Make sure the thermostat works with your HVAC system. Pick one that doesn’t need extra wires or big electrical work. Many thermostats come with easy mounting options and hardware. Some models fit common wire setups, so you don’t need extra parts. Choose a thermostat with simple buttons or a clear screen. This helps you install and use it faster. The easier it is to install, the sooner you can enjoy a smarter, more comfortable home.

Privacy and Security Measures

While it’s good to think about saving energy with a smart thermostat, you also need to protect your privacy and keep your info safe. First, check if the device has a clear privacy policy. It should say it doesn’t sell your data or keep your activity information for marketing. Look for security features like encryption, secure Wi-Fi, and regular updates. These make it harder for hackers to get into your device. Also, see if you can control what data you share. It helps to choose a thermostat that follows rules like GDPR or CCPA because they protect your data. Finally, read reviews from users and experts. They can tell you if the system really stays secure. Remember, a good thermostat is not just smart, but also keeps your info safe.

Cost and Rebate Options

When you look for a smart thermostat, costs and rebates matter. Many utility companies offer discounts for buying ENERGY STAR models. These rebates can lower the price you pay at the start. The amount of rebate and who can get it change by location. So, it’s a good idea to check your local programs before buying. Some programs ask for proof of installation or registration within a set time. Usually, smart thermostats cost between $50 and $250. The rebate can cover a big part of that. Check if the rebate is only for certain brands or features. That way, your new thermostat can save you even more money.

FAQs

How Do Smart Thermostats Influence Long-Term Energy Bills?

Smart thermostats reduce your long-term energy bills by optimizing heating and cooling schedules, learning your routines, and adjusting settings automatically, so you use less energy without sacrificing comfort, ultimately saving you money over time.

Are Smart Thermostats Compatible With All HVAC Systems?

Not all smart thermostats connect with every HVAC system. You should check your system’s compatibility, especially with older models, and make certain the thermostat’s features align to get the best energy savings and performance benefits.

Can Smart Thermostats Be Controlled Remotely Without Internet?

You can’t control smart thermostats remotely without internet because they rely on Wi-Fi for remote access. Without internet, you’ll need to manually adjust the thermostat directly on the device, losing the convenience of remote control.

What Security Measures Protect Smart Thermostat User Data?

You’re protected because smart thermostats use encryption, secure authentication, and regular firmware updates. These security measures guard your user data from unauthorized access and cyber threats, keeping your personal information safe and maintaining your privacy.

Do Smart Thermostats Require Professional Installation?

Most smart thermostats don’t require professional installation; however, depending on your home’s wiring and compatibility, you might need expert help for a quick, safe setup. Check the device instructions or consult a professional if unsure.

Last update on 2026-01-22 / Affiliate links / Images from Amazon Product Advertising API.   Some of the links on this website are affiliate links, which means that at no additional cost to you, I earn a commission if you click through and make a purchase. I only recommend products and services that I believe will add value to my readers. Thank you for your support!

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