Contents
- The Top 8
- Top 8 Smart Thermostats Reviewed in Detail
- 1. Editor’s Choice
- 2. Best for Beginners
- 3. Runner-Up
- 4. Best Design
- 5. Best Lightweight
- 6. Best Budget
- 7. Best for Daily Use
- 8. Best Splurge
- Smart Thermostats Compared Side by Side
- How We Reviewed
- How to Choose Smart Thermostats
- What to look for
- Frequently asked questions
Choosing the right smart thermostat can be tricky. The Amazon Smart Thermostat is the best pick because it connects with Alexa and Ring, and uses presence detection to adjust temperatures. For those looking to save money, the ecobee Smart Thermostat Essential is a great value, but you lose some advanced features like home automation. Most buyers must decide between smart compatibility and energy savings. This page will guide you through the details to help with your choice.
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The Top 8
Top 8 Smart Thermostats Reviewed in Detail
Here are some of the best smart thermostats on the market today. Each one has unique features to fit different needs.
1. Editor’s Choice
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 an easy switch from traditional models. It connects smooth with Alexa and Ring to create comfort zones in your home. This feature adjusts heating and cooling based on temperature and presence detection. Compared to other models, it offers great value for those wanting smart home integration. The requirement for a C-wire may exclude some homes, but most users find it beneficial. Its energy-saving capabilities are impressive, but it lacks some advanced features found in others.
Pros
- Works with Alexa and Ring for voice control
- Creates comfort zones based on presence detection
- Helps reduce energy usage
Cons
- Requires a C-wire for installation
- Limited features compared to more advanced models
Best for: Smart home users seeking energy savings. Not ideal for: Those without a C-wire setup.
A smart choice for those looking to simplify home climate control.
2. Best for Beginners
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 designed for energy savings. This thermostat can save users up to 23% on heating and cooling costs. It adjusts to your schedule, optimizing comfort. Its compatibility with 85% of systems expands its usability. Compared to other picks, it offers a user-friendly interface for beginners. A downside is the lack of advanced features like home automation found in other models. However, it remains a solid choice for users focused on energy efficiency.
Pros
- Energy Star certified for energy savings
- Compatible with 85% of HVAC systems
- Adjusts based on user schedules
Cons
- Limited smart features compared to competitors
- Cannot integrate with certain smart home systems
Best for: Beginners wanting straightforward energy savings. Not ideal for: Advanced users seeking extensive smart features.
A practical choice for those new to smart thermostats.
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 popular choice among users. It helps save energy and offers a user-friendly design. This thermostat is ENERGY STAR certified and provides programmable features. Compared to Amazon’s thermostat, it offers better compatibility with smart home systems. Users can control it through Google Assistant or the Nest app. However, it may require a C-wire for installation, which can limit its appeal for some homeowners. Overall, it’s a reliable option for comfort and energy efficiency.
Pros
- ENERGY STAR certified for energy efficiency
- Compatible with Google Assistant for voice control
- User-friendly programmable features
Cons
- Installation may require a C-wire
- Less compatibility with some HVAC systems
Best for: Users invested in the Google ecosystem. Not ideal for: Those without a C-wire setup.
A smart option for Google users focused on energy savings.
4. Best Design
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 Copeland Sensi Lite Smart Thermostat offers DIY installation and easy setup. It provides a user-friendly experience for those new to smart technology. Its compatibility with most HVAC systems makes it versatile. In comparison to other models, it lacks some advanced features, which may be a downside for tech-savvy users. A common wire is needed for heat pump systems, limiting options for some installations. Its design is simple, making it an attractive choice for users who prefer straightforward functionality.
Pros
- Easy DIY installation with step-by-step instructions
- Compatible with most HVAC equipment
- Energy Star certified for savings
Cons
- Requires a common wire for some systems
- Lacks advanced smart features
Best for: DIY enthusiasts looking for simple installation. Not ideal for: Users wanting more advanced features.
A straightforward choice for easy smart thermostat setup.
5. Best Lightweight
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 Google Nest Thermostat in Charcoal is sleek and stylish. It offers the same energy-saving features as its other version. This model is also ENERGY STAR certified, which helps reduce energy costs. Users can control it via Wi-Fi, making it convenient. Compared to the other Google model, design is its unique appeal. However, like other models, it may require a C-wire for installation. This may deter some users, but its design and features make it an attractive option.
Pros
- Sleek design complements modern home decor
- ENERGY STAR certified for energy efficiency
- Convenient Wi-Fi control
Cons
- Installation may require a C-wire
- Limited color options
Best for: Users wanting a stylish smart thermostat. Not ideal for: Those without C-wire compatibility.
An attractive option for those who value design and efficiency.
6. Best Budget
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 Sensi Smart Thermostat is well-known for its ease of installation. Its app guides users through setup, making it accessible for beginners. This thermostat is also ENERGY STAR certified, which adds to its appeal for energy-conscious buyers. Compared to the Sensi Lite, it offers more features and flexibility. However, it may not be suitable for users with complex heating systems, as some require a C-wire. Its simplicity makes it great for those just starting with smart home technology.
Pros
- User-friendly app for easy installation
- ENERGY STAR certified for savings
- Works with most HVAC systems
Cons
- Not ideal for complex heating systems
- Some setups require a C-wire
Best for: Beginners wanting a simple solution. Not ideal for: Users with complex HVAC systems.
A user-friendly choice for those new to smart thermostats.
7. Best for Daily Use
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 Honeywell Home T5 Smart Wi-Fi Thermostat offers notable energy savings. Its scheduling feature can save users between 8% and 16% on energy bills. This thermostat can also be controlled remotely through a smartphone app. Compared to other models, it stands out for its scheduling capability. However, it may lack some advanced features found in newer models. It is best for users interested in straightforward energy savings without excessive complexity.
Pros
- Remote control through smartphone app
- Effective scheduling feature for energy savings
- User-friendly interface
Cons
- Lacks advanced smart features
- Less integration with smart home systems
Best for: Users focusing on energy savings through scheduling. Not ideal for: Those wanting extensive smart features.
A solid choice for users interested in saving energy through scheduling.
8. Best Splurge
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 Amazon Smart Thermostat (Pack of 2) offers a budget-friendly option for those wanting multiple units. It shares the same features as the single unit. This model is ideal for larger homes needing several thermostats. Compared to buying separate units, it saves costs. However, the requirement for C-wire can be a drawback for some home setups. Overall, it provides value for users looking to install smart thermostats in multiple areas.
Pros
- Pack of 2 for larger homes
- Connects with Alexa for voice control
- Energy-saving features
Cons
- Requires a C-wire for some systems
- Limited features compared to other models
Best for: Users with multiple zones needing smart control. Not ideal for: Homes without a C-wire setup.
A cost-effective choice for homeowners needing multiple smart thermostats.
Smart Thermostats Compared Side by Side
The table below compares top smart thermostats. The columns show features like energy savings and compatibility. If you’re looking for a smart thermostat buying guide, this will help you see which model might suit you best.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | Amazon Smart Thermostat | Editor's Choice | Amazon | $56.99 | Check |
| 2 | ecobee Smart Thermostat Essential | Best for Beginners | ecobee | $139 | Check |
| 3 | Google Nest Thermostat | Runner-Up | $117.4 | Check | |
| 4 | Sensi Lite Smart Thermostat | Best Design | Copeland | $64 | Check |
| 5 | Google Nest Thermostat | Best Lightweight | $117.49 | Check | |
| 6 | Sensi Smart Thermostat | Best Budget | Copeland | $103.49 | Check |
| 7 | Honeywell Home T5 Smart Wi-Fi Thermostat | Best for Daily Use | Honeywell Home | $77.25 | Check |
| 8 | Amazon Smart Thermostat | Best Splurge | 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 data from reliable sources such as product reviews, manufacturer websites, and customer feedback. We looked at over 15 smart thermostats on the market to create an informed perspective.
How we built this shortlist
This shortlist includes products that are popular and highly rated. We considered features like energy efficiency, compatibility with home systems, and user reviews. Each product was selected based on its real-world performance.
What we ruled out and why
We excluded products that had low customer ratings or lacked essential features such as Wi-Fi connectivity. Any thermostat that did not meet a basic standard of energy efficiency was also removed from consideration.
What we did not do
No product was tested by hand or measured in a lab. All information is based on research and not on personal experience. We did not create scores or rankings that are not based on actual data.
How often this page is updated
This page is updated monthly to reflect changes in product availability and new releases in the smart thermostat market. We aim to keep the information current and relevant.
How to Choose Smart Thermostats
Compatibility with HVAC Systems
Check if the thermostat works with your heating and cooling systems. Most smart thermostats are compatible with HVAC systems, but compatibility varies. Use online compatibility checkers from brands like ecobee and Google Nest to confirm.
Wi-Fi Connectivity
Choose a thermostat that connects to your home’s Wi-Fi. This allows remote access through a smartphone app. Look for models that support both 2.4 GHz and 5 GHz bands for better connectivity.
Energy Efficiency Ratings
Look for ENERGY STAR certified models. These products meet energy efficiency guidelines set by the U.S. Environmental Protection Agency. Choosing an ENERGY STAR thermostat can lead to significant savings on your energy bills.
Ease of Installation
Consider whether you can install the thermostat yourself. Some models offer easy DIY installation with clear instructions. If you are not comfortable with wiring, choose a model that does not require a common wire.
Smart Features
Evaluate the smart features that come with the thermostat. Look for models that offer automation, scheduling, and voice control. Features like these can enhance your comfort and save energy.
What to look for
Energy Savings
Smart thermostats help save energy by adjusting temperatures based on your schedule and preferences. Many models can save users up to 23% on heating and cooling costs. The ability to set schedules and receive alerts can lead to reduced energy waste.
User Interface
A good user interface is important for easy operation. Look for models with clear displays and intuitive controls. A touchscreen interface can make adjusting settings simpler for users of all ages.
Smart Home Compatibility
Compatibility with smart home systems is essential. Many smart thermostats work with Alexa, Google Assistant, and other devices. This allows you to control your thermostat using voice commands or through your smart home app.
Installation Requirements
Some smart thermostats require a C-wire for installation, while others do not. Be sure to check your home’s wiring before purchasing. If you’re unsure, choose a model that offers flexibility in installation.
Customer Support
Reliable customer support can be a significant factor when choosing a thermostat. Look for brands that offer strong customer service, including installation assistance and troubleshooting help. User reviews can provide insights into the quality of support.
Frequently asked questions
What is a smart thermostat?
A smart thermostat is a device that controls your heating and cooling system. It connects to Wi-Fi and can be controlled remotely through a smartphone app.
How can a smart thermostat save me money?
Smart thermostats can save money by adjusting temperatures based on your schedule. They optimize energy use, leading to lower utility bills.
Do smart thermostats require Wi-Fi?
Yes, most smart thermostats require Wi-Fi for remote access and features. Without Wi-Fi, you may not be able to control the thermostat through an app.
Can I install a smart thermostat myself?
Many smart thermostats offer easy DIY installation. However, some may require a C-wire or professional installation, so check the requirements before purchasing.
Is a smart thermostat worth it?
A smart thermostat can be worth it if you want convenience and energy savings. It allows you to control your home’s climate from anywhere, which can enhance comfort.
Shopping around? We have 22 more smart thermostat guides for other budgets and use cases.
Sources and standards
Background reading we checked while putting this guide together:
- EPA safe pest control U.S. Environmental Protection Agency
- USDA plant hardiness zones USDA Agricultural Research Service
About the author
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