Contents
- The Top 8
- Top 8 Smart Thermostats Reviewed in Detail
- 1. Top Pick
- 2. Best Heavy-Duty
- 3. Best for Beginners
- 4. Best Value
- 5. Best Premium
- 6. Best for Daily Use
- 7. Runner-Up
- 8. Best for Small Spaces
- Smart Thermostats Compared Side by Side
- How We Reviewed
- What to look for
- How to Choose Smart Thermostats
- Frequently asked questions
Choosing the right device can be tough. Our smart thermostat reviews highlight the Amazon Smart Thermostat as our top pick. It connects to Alexa and can adjust itself based on your presence, helping you save energy. The ecobee Smart Thermostat Essential is our value choice. It is Energy Star certified but does not have Alexa integration, so you miss some smart features.
Energy efficiency is key when selecting a smart thermostat. Some models focus on saving energy, while others offer more advanced features like voice control. This article provides detailed comparisons to help you make the best decision.
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The Top 8
Top 8 Smart Thermostats Reviewed in Detail
Now, let’s explore the best smart thermostats available today.
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 easy control with Alexa. It helps save energy and money, making it a smart choice for your home.
Pros
Works well with Alexa and Ring devices for easy control.
Cons
Requires a C-wire for installation, which may complicate setup.
Best for users with Alexa devices already in their home.
A good option if you want an Alexa-compatible thermostat.
2. Best Heavy-Duty
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 Energy Star certified. It can save you up to 23% on heating and cooling costs each year.
Pros
Automatically adjusts based on your schedule, optimizing energy use.
Cons
Compatibility with systems can vary; check the ecobee Compatibility Checker.
Great for those who want to save money on energy bills.
An efficient choice for energy-conscious homeowners.
3. Best for Beginners
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
Google Nest Thermostat is a programmable smart thermostat. It helps you save energy while ensuring comfort at home.
Pros
Wi-Fi connectivity allows for remote control and monitoring.
Cons
May not work with all HVAC systems; check compatibility first.
Ideal for tech-savvy users looking for easy management.
A smart, user-friendly option for modern homes.
4. Best Value
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 installation. It also features a simple DIY guide for quick setup.
Pros
Does not require a C-wire for most systems, simplifying installation.
Cons
Limited smart features compared to more advanced models.
Perfect for DIYers and those on a budget.
A solid choice for easy setup without breaking the bank.
5. Best Premium
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 color combines style and energy savings. It’s ENERGY STAR certified, helping you stay comfortable.
Pros
Dual-band Wi-Fi provides reliable connectivity.
Cons
Compatibility issues may arise with older HVAC systems.
Suitable for users who prioritize both style and functionality.
A sleek, efficient thermostat choice for modern homes.
6. Best for Daily Use
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
Sensi Smart Thermostat offers privacy protection. It does not sell your personal information.
Pros
Easy installation using step-by-step app instructions.
Cons
Requires a C-wire in some setups, which may complicate installation.
Best for users who value privacy and easy tech.
A reliable option focusing on user privacy.
7. Runner-Up
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
Honeywell Home T5 Smart Wi-Fi Thermostat features scheduling. Users report savings between 8% and 16% on their energy bills.
Pros
Scheduling feature is user-friendly and effective.
Cons
May require some time to set up schedules properly.
Ideal for families who prefer a scheduled approach to energy savings.
A dependable choice with proven savings through scheduling.
8. Best for Small Spaces
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 the same benefits as the single unit. It is efficient and Alexa-compatible.
Pros
Buying in a pack can save you money if you need multiple units.
Cons
Still requires a C-wire for installation, which may limit some users.
Best for homes with multiple zones needing smart control.
A practical option for larger homes wanting Alexa control.
Smart Thermostats Compared Side by Side
The table below compares key features of popular smart thermostat reviews. You can see specifications like energy-saving capabilities and compatibility. Check the row that matches your needs to find the right choice.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | Amazon Smart Thermostat | Top Pick | Amazon | $56.99 | Check |
| 2 | ecobee Smart Thermostat Essential | Best Heavy-Duty | ecobee | $139 | Check |
| 3 | Google Nest Thermostat | Best for Beginners | $117.4 | Check | |
| 4 | Sensi Lite Smart Thermostat | Best Value | Copeland | $64 | Check |
| 5 | Google Nest Thermostat | Best Premium | $117.49 | Check | |
| 6 | Sensi Smart Thermostat | Best for Daily Use | Copeland | $103.49 | Check |
| 7 | Honeywell Home T5 Smart Wi-Fi Thermostat | Runner-Up | Honeywell Home | $77.25 | Check |
| 8 | Amazon Smart Thermostat | Best for Small Spaces | 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 trusted sources like user reviews, expert articles, and manufacturer websites. This helped us assess the performance and features of each smart thermostat. We focused on models that have good ratings among users.
How we built this shortlist
We looked at over 20 smart thermostats to create our shortlist. Each model had to meet basic criteria, such as energy efficiency and smart home compatibility. We prioritized features that help save money and energy in homes.
What we ruled out and why
Products were excluded if they lacked essential features like Wi-Fi capabilities or energy-saving options. Models with poor customer feedback were also removed from the list. Only those with solid ratings and features made it to our final picks.
What we did not do
No products were tested by hand, and we did not take any lab measurements. All scores and ratings are based on available data from customer reviews and expert opinions. Our analysis does not include personal experiences.
How often this page is updated
This page will be updated every three months or sooner if there are major product launches. We aim to keep the information current and relevant. Each revision includes checking the latest reviews and product specifications.
What to look for
Energy Efficiency
Energy efficiency is a key consideration for smart thermostats. Look for models that are Energy Star certified. This means they meet strict energy efficiency guidelines set by the U.S. Environmental Protection Agency. A smart thermostat can help reduce your heating and cooling costs by up to 23%.
Compatibility
Before buying, check if the smart thermostat works with your heating and cooling system. Some models are compatible with 85% of systems. Use compatibility checkers available on the manufacturers’ websites. This step ensures a smooth installation and operation.
Smart Features
Smart features enhance convenience. Many thermostats can be controlled through smartphone apps or by voice assistants like Alexa or Google Assistant. These features allow you to adjust your home temperature while on the go. Decide if these smart capabilities are important for your lifestyle.
Installation
Consider how easy a thermostat is to install. Many models offer DIY installation with simple instructions. Some require a common wire (C-wire) for power. If you’re not comfortable with wiring, choose a model designed for easy setup without professional help.
Price vs. Features
Smart thermostats come at various price points. Higher-priced models often have more advanced features like remote sensors or multi-zone control. Assess your budget and determine which features you truly need. Sometimes, a less expensive model suffices for basic temperature control.
How to Choose Smart Thermostats
Look for Energy Star Certification
Choose a thermostat that is Energy Star certified. This certification ensures that the device meets energy efficiency standards. An Energy Star model helps you save on energy costs. It’s a concrete way to know you’re making a smart choice.
Check Compatibility
Before purchasing, check if your heating and cooling system is compatible with the thermostat. Visit the manufacturer’s website to use their compatibility checker. This step is critical to avoid installation issues and ensure proper function.
Consider Smart Features
Think about which smart features you will use. Do you want voice control or remote access from your phone? Identify your needs and look for models with those specific features. This will enhance your living experience and improve comfort.
Evaluate Installation Needs
Installation can vary by model. Some require a C-wire to function, while others do not. If you’re not comfortable with electrical work, choose a thermostat known for easy DIY installation. This will save you time and potential frustration.
Compare Price and Features
Pricing can differ widely among smart thermostats. Compare models within your budget while considering the features they offer. Sometimes a mid-range thermostat has everything you need without overspending. Focus on getting the best value for your investment.
Frequently asked questions
What are smart thermostat reviews?
Smart thermostat reviews are analyses of various thermostat models. They help you compare features, benefits, and drawbacks. Reading these reviews can guide your purchasing decision.
How do smart thermostats save energy?
Smart thermostats save energy by adjusting temperatures based on your schedule and presence. They learn your habits and optimize heating and cooling accordingly. This efficiency can lead to lower energy bills.
Can I install a smart thermostat myself?
Many smart thermostats offer DIY installation. They come with step-by-step instructions and help tools. However, some require a C-wire, which may need professional installation.
Do all smart thermostats work with Alexa?
No, not all smart thermostats are compatible with Alexa. Be sure to check the specifications before buying. Models like the Amazon Smart Thermostat and ecobee Smart Thermostat Essential work well with Alexa.
Why is compatibility important for smart thermostats?
Compatibility ensures the thermostat will work with your heating and cooling systems. Each model has specific requirements. Checking compatibility prevents installation issues and guarantees optimal performance.
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