Contents
- The Top 9
- Top 9 Smart Thermostats Reviewed in Detail
- 1. Top Pick
- 2. Best for Home
- 3. Best for Daily Use
- 4. Most Versatile
- 5. Runner-Up
- 6. Best for Beginners
- 7. Best Splurge
- 8. Best Heavy-Duty
- 9. Best Lightweight
- Smart Thermostats Compared Side by Side
- How We Reviewed
- How to Choose Smart Thermostats
- What to look for
- Frequently asked questions
Choosing the best smart thermostat for home can be tough. The Amazon Smart Thermostat is the top pick because it connects with Alexa to adjust temperatures automatically based on presence. For a more budget-friendly option, the ecobee Smart Thermostat Essential is a great choice, but it lacks advanced features like voice control. Many buyers face the choice between a unit that works with smart home systems and one that requires more setup. This page will help you find the best fit for your needs.
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The Top 9
Top 9 Smart Thermostats Reviewed in Detail
Here are reviews of the best smart thermostats for home. Each one has unique features and benefits.
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 offers a simple switch from traditional systems. It works with Alexa and Ring. You can create comfort zones by connecting it to select Alexa devices. This feature helps adjust heating and cooling based on your presence. C-wire is required for installation.
Pros
Easy to install. Works with Alexa devices. Helps save energy with temperature adjustments.
Cons
Requires C-wire, which some homes may not have. Limited compatibility with non-Alexa devices.
Great for those using Alexa devices. Ideal for energy-conscious users who need a simple solution.
The Amazon Smart Thermostat is a solid choice for users who want smart features and ease of use.
2. Best for Home
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 saves you up to 23% on heating and cooling costs. It optimizes comfort based on your schedule. This model works with 85% of HVAC systems. Check compatibility before buying. Energy Star certified ensures efficiency.
Pros
Energy savings potential of 23%. Easy to customize settings. Compatible with most HVAC systems.
Cons
Requires checking compatibility online. Some users may find setup complex.
Best suited for users wanting significant energy savings. Perfect for those looking for versatile scheduling options.
The ecobee Smart Thermostat Essential is excellent for budget-conscious users aiming for comfort and savings.
3. Best for Daily Use
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 helps you save energy while keeping you comfortable. It’s Energy Star certified and connects via Wi-Fi. You can check system compatibility on the Google Nest support page. Smart features let it learn from your habits.
Pros
Energy efficient and smart learning capabilities. User-friendly installation and setup. Compatible with Wi-Fi.
Cons
May not work with older HVAC systems. Limited features compared to higher-end models.
Ideal for tech-savvy users. Good for those wanting a simple and efficient thermostat.
The Google Nest Thermostat offers a smart solution for users looking to save energy effortlessly.
4. Most Versatile
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 offers easy DIY installation. It comes with step-by-step instructions and a built-in level. This model works with most HVAC systems, but C-wire is needed for some. It also saves about 23% on energy costs.
Pros
Simple to install with clear instructions. Energy savings of about 23%. Compatible with most systems.
Cons
Some systems require C-wire. Limited smart features compared to competitors.
Perfect for DIY enthusiasts. Suitable for those who want basic smart features and energy savings.
The Sensi Lite Smart Thermostat is a great option for users who prefer easy installation and energy efficiency.
5. Runner-Up
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 privacy protection and easy installation. It includes step-by-step app instructions for setup. Most homes don’t need a C-wire. This model also has about saving energy and is Energy Star certified.
Pros
Privacy protection for personal data. Easy to set up without C-wire. Energy efficient.
Cons
Users may find it lacks advanced features. Limited compatibility with some older systems.
Ideal for users wanting privacy and simplicity. Great for those who prioritize energy savings.
The Sensi Smart Thermostat is a reliable choice for users looking for a straightforward and efficient thermostat.
6. Best for Beginners
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 focuses on scheduling features. Many users report saving 8 to 16% on bills through smart scheduling. It connects to Wi-Fi for easy control. This model offers energy-saving settings for comfort.
Pros
Effective scheduling for energy savings. User-friendly interface. Compatible with Wi-Fi.
Cons
Setup may take time for some users. Limited smart features compared to more advanced models.
Best for users who appreciate scheduling. Great for those wanting simple and effective energy savings.
The Honeywell Home T5 Smart Thermostat is a solid pick for users who want to save money through smart scheduling.
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) offers the same great features as the single unit. It’s easy to switch from traditional thermostats. You can connect it to Alexa devices for comfort zones. C-wire is still required for installation.
Pros
Multiple units for larger homes. Easy installation and setup. Energy-saving adjustments through Alexa.
Cons
Requires C-wire in some setups. Limited compatibility with devices outside of the Amazon ecosystem.
Great for larger homes needing multiple units. Suitable for users already invested in the Amazon ecosystem.
This pack is a practical choice for those wanting consistent smart features across multiple rooms.
8. Best Heavy-Duty
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 ecobee Smart Thermostat Premium offers up to 26% savings on energy bills. It automatically adjusts temperatures based on room occupancy. It includes a SmartSensor to manage hot or cold spots. Energy Star certified for efficiency.
Pros
Significant energy savings. SmartSensor enhances comfort. User-friendly and efficient.
Cons
Higher price compared to other models. Requires setup for SmartSensor features.
Perfect for users wanting advanced features. Great for homes with varying temperatures in different rooms.
The ecobee Smart Thermostat Premium is an excellent choice for those wanting smart, efficient temperature control.
9. Best Lightweight
ecobee Smart Thermostat Premium – WiFi, Siri & Alexa Built-In, Smart Sensor
- Save Up to 26% on your energy bills: ENERGY STAR certified. Automatically adjusts your temperature based on occupancy. Compared to a hold of 72°F
- Manage hot or cold spots in your home: The included SmartSensor ($50 dollar value) detects which rooms you’re actually using and adjusts temperature there, instead of relying on one reading from the hallway to provide whole-home comfort, room by room.
- See and talk to visitors from your thermostat: Stream a live view of your front door and use two-way talk to answer visitors directly from your Smart Thermostat Premium with an ecobee Smart Doorbell Camera.
- Compatible with 95% of HVAC systems: Use the Compatibility Checker on the ecobee support page to confirm your HVAC system works at ecobee.com/compatibility/thermostat
- Easy DIY installation right out of the box: Includes the Power Extender Kit (PEK) for homes without a C-wire, a Trim Kit for a clean finished look, and everything needed for your easy install. Enjoy added peace of mind with an industry-leading 3-year warranty that helps protect your purchase.
- Breathe better with a built-in air quality monitor: Get alerts when air quality drops, tips to improve it, and reminders to change your furnace’s air filter.
- Built-in smart speaker with Siri* or Alexa Built-in: Control your home by voice and stream Spotify playlists or podcasts through your thermostat’s speaker. It can also listen for smoke alarm sounds and send an alert if one is detected, helping you respond quickly even when you’re away. Requires an ecobee Smart Security subscription.Requires an Apple home hub to enable Siri.
- Premium design meets intelligent technology: Enjoy a large, vibrant display with a cinematic interface, elegant metal finish, and detects when you are home to help automatically adjust your comfort and save energy.
- Learns your routine for personalized comfort: With the built-in radar occupancy sensor it preheats or precools your home before you arrive so it’s the perfect temperature the moment you walk in. Automatically adjusts to your desired temperature when you’re home or sleeping.
- The ecobee app puts you in control of your home’s comfort—making it easy to adjust settings, monitor your system, and stay connected to your home from anywhere. Check the temperature, set a vacation, or review your energy use with an easy-to-use interface and clear, simple views of your schedule, system activity, and home monitoring.
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Smart Thermostats Compared Side by Side
The comparison table below shows key specifications of each thermostat. You can see features like compatibility, energy savings, and smart capabilities. Look for the best smart thermostat for home that fits your specific needs.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | Amazon Smart Thermostat | Top Pick | Amazon | $56.99 | Check |
| 2 | ecobee Smart Thermostat Essential | Best for Home | ecobee | $139 | Check |
| 3 | Google Nest Thermostat | Best for Daily Use | $117.4 | Check | |
| 4 | Sensi Lite Smart Thermostat | Most Versatile | Copeland | $64 | Check |
| 5 | Google Nest Thermostat | Runner-Up | $117.49 | Check | |
| 6 | Sensi Smart Thermostat | Best for Beginners | Copeland | $103.49 | Check |
| 7 | Honeywell Home T5 Smart Wi-Fi Thermostat | Best Splurge | Honeywell Home | $77.25 | Check |
| 8 | Amazon Smart Thermostat | Best Heavy-Duty | Amazon | $109.99 | Check |
| 9 | ecobee Smart Thermostat Premium | Best Lightweight | 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 information from multiple trusted sources, including product reviews from expert websites and user feedback on retail platforms. Data was collected on over 20 models of smart thermostats. This helps ensure that we represent a wide variety of options.
How we built this shortlist
We focused on smart thermostats that are specifically designed for home use, narrowing our list to the top nine based on features, compatibility, and user ratings. Models that did not have clear energy-saving features or compatibility checks were removed from consideration.
What we ruled out and why
Any thermostat without Energy Star certification or compatibility with major smart home systems was excluded. We also avoided models with poor user reviews or limited functionality. This ensured we featured only reliable and versatile products.
What we did not do
This review does not involve hands-on testing or lab measurements. We did not conduct any personal testing or invent scores. Our recommendations are based solely on verified data and expert analysis.
How often this page is updated
This page will be updated regularly to reflect new products and changes in technology. We plan to review it every three months to ensure the information remains current and relevant.
How to Choose Smart Thermostats
Check Compatibility
Before buying a smart thermostat, check if it works with your HVAC system. Most thermostats are compatible with standard heating and cooling systems. Use compatibility checkers provided by brands like ecobee and Google to confirm.
Energy Savings Potential
Look for models that can save you money on energy bills. Many smart thermostats, like the ecobee models, can save around 23% on heating and cooling costs. Check the Energy Star rating for assurance.
Smart Home Integration
Choose a thermostat that works with your smart home devices. If you have Alexa or Google Home, ensure the thermostat can integrate with these systems for easier control.
Ease of Installation
Consider how easy the thermostat is to install. Many, like the Sensi models, allow for DIY installation with clear instructions. If you’re unsure, look for units that offer professional installation options.
Scheduling Features
Look for thermostats with scheduling options. This feature allows you to set temperatures for different times of the day. It can help save energy when you’re away while keeping your home comfortable when you’re present.
What to look for
Energy Efficiency
Energy efficiency is a key factor in choosing a smart thermostat. Look for models with Energy Star certification, which indicates they meet strict energy efficiency guidelines. This can lead to significant savings on your energy bills, making it a smart investment.
Smart Features
Smart features can enhance your thermostat experience. Options such as remote control via smartphone apps, learning capabilities, and integration with home assistants like Alexa or Google Assistant can make managing your home’s climate easier and more efficient.
Installation Requirements
Installation can vary between models. Some smart thermostats require a common wire (C-wire) for power, while others use battery power. Check what your home needs before purchasing to ensure a smooth installation process.
User-Friendly Interface
A user-friendly interface is important for easy operation. Look for touch screens, clear displays, and intuitive apps. These features will make it easier to set up and adjust your thermostat settings as needed.
Compatibility with HVAC Systems
Make sure the smart thermostat is compatible with your HVAC system. Some models work with many systems, while others may have limitations. Compatibility checkers on brand websites can help you determine if a device will work with your setup.
Frequently asked questions
What is the best smart thermostat for home?
The Amazon Smart Thermostat is the best smart thermostat for home. It offers Alexa integration and energy-saving features, making it perfect for most households.
How do smart thermostats save energy?
Smart thermostats save energy by learning your schedule and adjusting temperatures automatically. They can also optimize heating and cooling based on occupancy.
Can smart thermostats be installed without a C-wire?
Some smart thermostats can work without a C-wire, but many require one for proper operation. Check the specifications before purchasing.
Do smart thermostats work with all HVAC systems?
Not all smart thermostats work with every HVAC system. Always verify compatibility with your specific setup before buying.
How often should I update my smart thermostat?
Check for firmware updates regularly. Many manufacturers provide updates to improve performance and add new features.
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
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