Contents
- The Top 8
- Top 8 Smart Thermostats Reviewed in Detail
- 1. Top Pick
- 2. Best for Small Spaces
- 3. Runner-Up
- 4. Best Premium
- 5. Best Value
- 6. Best Compact
- 7. Best Splurge
- 8. Best for Daily Use
- Smart Thermostats Compared Side by Side
- How We Reviewed
- What to look for
- How to Choose Smart Thermostats
- Frequently asked questions
You want to save energy and money on heating and cooling. The smart thermostat comparison shows that the Amazon Smart Thermostat is the top pick. Its ability to connect with Alexa devices helps you create comfort zones based on your needs. For a value option, consider the ecobee Smart Thermostat Essential. You will miss some smart features, but it still saves energy effectively.
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The Top 8
Top 8 Smart Thermostats Reviewed in Detail
Here are reviews of popular smart thermostats to help you decide your best choice.
1. Top Pick
Amazon Smart Thermostat, Save money and energy, Works with Alexa and Ring, C-wire required
- An Alexa thermostat – Amazon Smart Thermostat is an easy way to switch from a traditional thermostats for homes and help reduce energy usage.
- Create comfort zones throughout your home by connecting to select Alexa devices to automatically adjust heating and cooling based on temperature readings or presence detection.
- Save money and energy – After purchase, Amazon will send you an email with details about home thermostat rebates that may be available from energy providers in your area.
- Save energy – According to EPA estimates, ENERGY STAR certified thermostats save an average of $90 on yearly energy bills.
- Programmable thermostat and automatic control – Create your own home, away and sleep schedules, or have Alexa automatically control the temperature with Alexa+ advanced features.
- On-the-go control – Monitor and control temperature when you’re away from home with the Alexa app.
- Do-it-yourself installation – 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.
The Amazon Smart Thermostat is the top pick in this smart thermostat comparison. It connects easily with Alexa devices, allowing you to create personalized comfort zones based on your home’s temperature. This feature makes it different from many other models. Compared to the ecobee Smart Thermostat Essential, it has a straightforward setup process, making it ideal for beginners. However, it requires a C-wire for installation, which may not be available in all homes. This limitation could deter some buyers who do not want to handle wiring issues.
Pros
- Connects smooth with Alexa and Ring devices.
- Helps create comfort zones in your home.
- Energy-saving features reduce heating and cooling costs.
Cons
- Requires C-wire for installation.
- Limited compatibility with some HVAC systems.
Best for: users who want an easy-to-use smart thermostat with Alexa support. Not ideal for: homes without C-wire availability.
The Amazon Smart Thermostat is a user-friendly choice with excellent features for energy savings.
2. Best for Small Spaces
ecobee Smart Thermostat Essential – WiFi Thermostat, Energy Star Certified
- 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
- Check your system’s compatibility on the ecobee support page. ecobee.com/compatibility/thermostat
The ecobee Smart Thermostat Essential is the best option for small spaces in this smart thermostat comparison. It adjusts automatically to your schedule, optimizing comfort while saving energy. This model claims to save up to 23% in heating and cooling costs, which is impressive. Compared to the Amazon Smart Thermostat, the ecobee supports a wider range of HVAC systems, making it more versatile. However, it lacks the Alexa integration that some users may prefer. This could limit functionality for those who want voice control.
Pros
- Energy Star certified, promoting energy efficiency.
- Adjusts based on your set schedule.
- Compatible with 85% of HVAC systems.
Cons
- No Alexa integration for voice control.
- Less user-friendly installation process compared to some competitors.
Best for: those looking for energy savings in small spaces. Not ideal for: users who prefer voice control options.
The ecobee Smart Thermostat Essential is efficient and effective for smaller homes.
3. Runner-Up
Google Nest Thermostat – Smart Thermostat for Home – Programmable Wifi Thermostat – Snow
- ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page.Connectivity Protocol : Wi-Fi.Connectivity Protocol : Wi-Fi
- 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
- Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]
- Savings Finder looks for more ways your thermostat can help you save, and suggests tweaks to your schedule in the app; check with your energy provider to learn more about rebates and more ways to save on a Nest thermostat
- Smart thermostat with HVAC monitoring, which looks out for your heating and cooling systems; sends an alert if something doesn’t seem right, along with helpful reminders to make maintenance easier[2]
- 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.
- Control the temperature with your voice using smart home devices that work with Google Assistant or Alexa[3]
- Nest Renew makes it simple to support clean energy right from home; it works with your Nest Thermostat[5] to help you automatically prioritize your usage[6] to times when energy is cleaner or less expensive
The Google Nest Thermostat is a solid runner-up in this smart thermostat comparison. It offers a sleek design and easy programming, making it appealing to many users. This model automatically adjusts to your habits, promoting energy efficiency. While it lacks some advanced features of higher-end models, it remains user-friendly. Compared to the Sensi Lite Smart Thermostat, it provides better smart features but may require more complex installation. Some users may find the setup challenging depending on their HVAC systems.
Pros
- ENERGY STAR certified for energy savings.
- Automatically adjusts based on your habits.
- Sleek design fits well in modern homes.
Cons
- Setup can be complex for some systems.
- Fewer advanced features than pricier models.
Best for: users wanting a sleek design with smart features. Not ideal for: those needing a straightforward installation process.
The Google Nest Thermostat balances style and function for modern homes.
4. Best Premium
Sensi Lite Smart Thermostat, WiFi, Alexa, DIY, Energy Star Certified, ST25
- 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 access and usage reports
- PRIVACY PROTECTION: Sensi won’t sell your personal information to third parties or leverage your thermostat activity data for targeting or advertising purposes
- CONTROL FROM ANYWHERE: The top-rated mobile app for Android and iOS devices makes it easy to control your comfort from a smartphone or tablet
The Sensi Lite Smart Thermostat is a great premium choice in this smart thermostat comparison. It stands out with easy DIY installation steps and energy-saving features. The built-in level and step-by-step guide make installation straightforward for most users. Compared to the Honeywell Home T5, it offers a more user-friendly setup experience. However, it may not have as many smart features or advanced integrations. Users seeking more automation might look elsewhere for additional capabilities.
Pros
- User-friendly installation with step-by-step instructions.
- Energy Star certified for efficient energy use.
- Compatible with most HVAC systems.
Cons
- Fewer smart features than competing models.
- Limited advanced automation capabilities.
Best for: those wanting an easy installation experience. Not ideal for: users seeking extensive smart home integration.
The Sensi Lite Smart Thermostat is an excellent choice for easy DIY installation.
5. Best Value
Google Nest Thermostat – Smart Thermostat for Home – Programmable Wifi Thermostat – Charcoal
- ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.Connectivity : Wi-Fi – 802.11b/g/n 2.4 GHz, 802.11a/n 5 GHz Wi-Fi., Wireless interconnect : Bluetooth Low Energy Please refer to the product description section below for all applicable legal disclaimers.Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page
- 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
- Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home. Lock feature: No
- Programmable thermostat that lets you create an energy efficient schedule in the Google Home app on your Android or iPhone
- Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]
- Savings Finder looks for more ways your thermostat can help you save, and suggests tweaks to your schedule in the app; check with your energy provider to learn more about rebates and more ways to save on a Nest thermostat
- Smart thermostat with HVAC monitoring, which looks out for your heating and cooling systems; sends an alert if something doesn’t seem right, along with helpful reminders to make maintenance easier[2]
- 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.
- Connectivity : Wi-Fi – 802.11b/g/n 2.4 GHz, 802.11a/n 5 GHz Wi-Fi., Wireless interconnect : Bluetooth Low Energy
- Please refer to the product description section below for all applicable legal disclaimers
The Sensi Smart Thermostat offers great value in this smart thermostat comparison. It has energy-saving features and supports Alexa for easy voice control. The installation process is also beginner-friendly, making it accessible. Compared to the Honeywell Home T5, it offers similar energy savings but at a lower price point. However, it may lack some advanced features and customizations found in higher-end models. Users who want maximum customization might find this model limiting.
Pros
- Energy Star rated for efficiency.
- Compatible with most HVAC systems.
- Supports Alexa for voice control.
Cons
- Limited advanced features compared to others.
- Customization options may be insufficient for some users.
Best for: budget-conscious users wanting essential smart features. Not ideal for: those needing advanced customization options.
The Sensi Smart Thermostat provides solid value with essential features.
6. Best Compact
Sensi Smart Thermostat, Wi-Fi, DIY, Alexa, Energy Star Certified, 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
- 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
- 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
The Honeywell Home T5 Smart Wi-Fi Thermostat is a compact and effective choice in this smart thermostat comparison. It offers advanced scheduling features, allowing users to save on energy bills. Many customers report savings between 8% and 16% through effective use of these features. Compared to the ecobee Smart Thermostat Essential, it provides sturdy scheduling but may lack some smart capabilities. Users wanting advanced smart features may prefer other models, as this one focuses more on traditional thermostat functionalities.
Pros
- Advanced scheduling features for energy savings.
- Compact design fits in various spaces.
- Wi-Fi connectivity for remote control.
Cons
- Limited smart features compared to competitors.
- Less intuitive compared to other models.
Best for: users who value scheduling in their thermostat. Not ideal for: individuals wanting advanced smart features.
The Honeywell Home T5 offers a compact design with good scheduling capabilities.
7. Best Splurge
Honeywell Home T5 Smart Wi-Fi Thermostat
- High use of the scheduling feature of the T5 thermostat saved customers between 8 and 16% on heating and cooling bills. Dollar savings range based on nationwide average annual single-family detached home’s heat and cooling bills; actual savings varies based on consumption.
- Save Energy and Get Rewarded. Check with your energy provider about available energy savings rebates to save on your purchase. 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.
- 7-Day Flexible Scheduling or Location Based Temperature Control. It’s your choice. 7-day scheduling programs your thermostat. Geofence technology helps make you comfortable by using your smartphone’s location to know when you’re away and when you return.
- Auto Home and Away Mode. Enjoy ideal temperatures at home, then save when away.
- ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.
- C-WIRE POWER ADAPTER REQUIRED: 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.
- The T5 thermostat is ENERGY STAR certified and you can program it based on your schedule, or let it adapt to your life as plans change
The Amazon Smart Thermostat (Pack of 2) is an excellent splurge option in this smart thermostat comparison. It allows for control over multiple rooms, maximizing comfort throughout your home. The dual-pack feature makes it convenient for larger spaces or homes. Compared to the single-pack version, it provides better value for those needing coverage in different areas of the house. However, the requirement for C-wire may limit its appeal to users with older systems that lack this wiring.
Pros
- Convenient dual-pack option for multiple rooms.
- Alexa integration for easy voice control.
- Energy-saving features help reduce costs.
Cons
- Requires C-wire for installation in many cases.
- Might be overkill for smaller homes.
Best for: larger homes needing multiple thermostats. Not ideal for: users with older systems lacking C-wire.
The Amazon Smart Thermostat (Pack of 2) is perfect for larger homes looking for comfort.
8. Best for Daily Use
Amazon Smart Thermostat – Save money and energy – Works with Alexa and Ring – C-wire required (Pack of 2)
- The information below is per-pack only
- An Alexa thermostat – Amazon Smart Thermostat is an easy way to switch from a traditional thermostats for homes and help reduce energy usage.
- Create comfort zones throughout your home by connecting to select Alexa devices to automatically adjust heating and cooling based on temperature readings or presence detection.
- Save money and energy – After purchase, Amazon will send you an email with details about home thermostat rebates that may be available from energy providers in your area.
- Save energy – According to EPA estimates, ENERGY STAR certified thermostats save an average of $50 on yearly energy bills.
- Programmable thermostat and automatic control – Create your own home, away and sleep schedules, or have Alexa automatically control the temperature with Alexa+ advanced features.
- On-the-go control – Monitor and control temperature when you’re away from home with the Alexa app.
- Do-it-yourself installation – 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.
The Google Nest Thermostat (Charcoal) is a reliable choice for daily use in this smart thermostat comparison. Its energy-saving capabilities help maintain comfort while lowering costs. The design suits various home styles, and it’s easy to use. Compared to the Google Nest Thermostat (Snow), this model offers the same features but in a darker color. Users seeking a more modern appearance may prefer the charcoal finish. However, its setup may prove challenging for some users without prior experience.
Pros
- ENERGY STAR certified for savings.
- User-friendly interface for easy control.
- Sleek design fits well in different decors.
Cons
- Setup can be difficult for first-time users.
- Less advanced features than some premium options.
Best for: users wanting a stylish, effective thermostat for daily use. Not ideal for: those needing advanced automation features.
The Google Nest Thermostat (Charcoal) combines style and energy savings for everyday use.
Smart Thermostats Compared Side by Side
The table below shows a smart thermostat comparison. You can compare key features, pros, and cons of each model. Look at the columns that matter most to you based on your home and needs.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | Amazon Smart Thermostat | Top Pick | Amazon | $56.99 | Check |
| 2 | ecobee Smart Thermostat Essential | Best for Small Spaces | ecobee | $139 | Check |
| 3 | Google Nest Thermostat | Runner-Up | $117.4 | Check | |
| 4 | Sensi Lite Smart Thermostat | Best Premium | Copeland | $64 | Check |
| 5 | Google Nest Thermostat | Best Value | $117.49 | Check | |
| 6 | Sensi Smart Thermostat | Best Compact | Copeland | $103.49 | Check |
| 7 | Honeywell Home T5 Smart Wi-Fi Thermostat | Best Splurge | Honeywell Home | $77.25 | Check |
| 8 | Amazon Smart Thermostat | Best for Daily Use | Amazon | $109.99 | Check |
| 9 | ecobee Smart Thermostat Premium | — | ecobee | $259.99 | Check |
Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.
How We Reviewed
Where our data comes from
We gathered product data from manufacturer websites, user reviews, and trusted tech review sites. This gave us a wide view of what each thermostat offers.
How we built this shortlist
We looked at over 20 different smart thermostats and filtered them based on energy-saving features, compatibility, and ease of use. Only the best products made the final list.
What we ruled out and why
Some models were dropped due to poor user ratings or lack of essential features like Wi-Fi connectivity. We focused on thermostats with proven energy savings.
What we did not do
No products were tested by hand or in labs. We did not assign scores. All information is based on available data, not personal use.
How often this page is updated
This page will be updated every 3 months or whenever new products are released. Check back for the latest information.
What to look for
Energy Savings
Look for a smart thermostat that can save you energy costs. Models like the ecobee Smart Thermostat Essential claim savings of up to 23%. The right choice can help lower your bills significantly.
Compatibility
Ensure your thermostat is compatible with your heating and cooling system. Many devices, like the Amazon Smart Thermostat, require a C-Wire. Check compatibility before purchasing.
Smart Features
Smart features like voice control or scheduling can enhance your experience. Look for models supporting Alexa or Google Assistant for easy control from anywhere.
User-Friendly Design
Choose a thermostat that is easy to install and use. Some, like the Sensi Lite Smart Thermostat, come with DIY instructions and built-in levels for quick setup.
Size and Aesthetics
Consider the size and design of the thermostat. It should fit well in your home and match your decor. Select a model that fits your style while offering the features you need.
How to Choose Smart Thermostats
Check Compatibility
Before purchasing a smart thermostat, always check compatibility with your HVAC system. Use tools like the ecobee Compatibility Checker to ensure it can work with your setup.
Evaluate Energy Savings
Look for thermostats claiming energy savings of at least 20%. This is a good benchmark to ensure you choose one that helps lower your bills significantly over time.
Review Smart Features
Make a list of smart features you want, such as voice control or scheduling. Some models, like Google Nest, offer more advanced features, enhancing your convenience.
Consider Ease of Installation
Choose a model that offers easy installation. Some devices come with step-by-step instructions, like the Sensi Lite Smart Thermostat, making it easy for DIYers.
Look for Energy Star Certification
Select thermostats that are ENERGY STAR certified. This certification means they meet strict energy efficiency guidelines, helping you save money and use less energy.
Frequently asked questions
What is a smart thermostat?
A smart thermostat is a device that controls your home’s heating and cooling systems. It can be programmed or controlled remotely, often via a smartphone app.
How do I install a smart thermostat?
Installation varies by model, but many come with DIY instructions. Common wire (C-wire) may be needed for some systems. Always follow the manual.
Can I use a smart thermostat without Wi-Fi?
Most smart thermostats require a Wi-Fi connection for full features. Some basic functions may work without Wi-Fi, but remote control won’t be available.
Do smart thermostats save money?
Yes, many smart thermostats help save on energy bills. Models like the ecobee Smart Thermostat show potential savings of up to 23% annually.
How do I choose the best smart thermostat?
Check compatibility, energy-saving claims, and desired smart features. Look for user-friendly designs and consider installation ease.
About the author
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