20 Best Smart Thermostat [2024]

Are you looking for the best smart thermostat? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling smart thermostat.

We Recommended:

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1 Amazon Smart Thermostat – ENERGY STAR certified, DIY install, Works with Alexa – C-wire required Amazon Smart Thermostat – ENERGY STAR certified, DIY install, Works with Alexa – C-wire required
2 Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow
3 Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy... Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy...
4 Google Nest Learning Thermostat - Programmable Smart Thermostat for Home - 3rd Generation Nest... Google Nest Learning Thermostat - Programmable Smart Thermostat for Home - 3rd Generation Nest...
5 Ecobee3 Lite SmartThermostat, Black Ecobee3 Lite SmartThermostat, Black
6 Emerson Sensi Wi-Fi Smart Thermostat for Smart Home, DIY, Works With Alexa, Energy Star Certified,... Emerson Sensi Wi-Fi Smart Thermostat for Smart Home, DIY, Works With Alexa, Energy Star...
7 Wyze Programmable Smart WiFi Thermostat for Home with App Control, Energy Saving, Easy Installation,... Wyze Programmable Smart WiFi Thermostat for Home with App Control, Energy Saving, Easy...
8 ecobee3 Smarter Wi-Fi Thermostat with Remote Sensor, 2nd Generation ecobee3 Smarter Wi-Fi Thermostat with Remote Sensor, 2nd Generation
9 Smart Thermostat Smart Thermostat
10 Lennox 12U67 iComfort S30 Ultra Smart Programmable Thermostat, Geo-Fencing, Remote Access, Wi-Fi and... Lennox 12U67 iComfort S30 Ultra Smart Programmable Thermostat, Geo-Fencing, Remote Access, Wi-Fi...
11 ecobee SmartThermostat with Voice Control , Black ecobee SmartThermostat with Voice Control , Black
12 Honeywell Home T9 WiFi Smart Thermostat with 1 Smart Room Sensor, Touchscreen Display, Alexa and... Honeywell Home T9 WiFi Smart Thermostat with 1 Smart Room Sensor, Touchscreen Display, Alexa and...
13 Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and... Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and...
14 Mysa Smart Thermostat for Electric Baseboard and in-Wall Heaters V2 | Connects with Smart Devices,... Mysa Smart Thermostat for Electric Baseboard and in-Wall Heaters V2 | Connects with Smart...
15 ecobee4 Smart Thermostat with Built-in Alexa, Room Sensor Included ecobee4 Smart Thermostat with Built-in Alexa, Room Sensor Included
16 Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy... Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa,...
17 Smart Thermostat Installation Smart Thermostat Installation
18 Honeywell Home Honeywell THX321WFS2001W T10 Pro Smart Thermostat with RedLINK, White Honeywell Home Honeywell THX321WFS2001W T10 Pro Smart Thermostat with RedLINK, White
19 Sensi Touch Smart Thermostat by Emerson with Touchscreen Color Display, Programmable, Wi-Fi, Mobile... Sensi Touch Smart Thermostat by Emerson with Touchscreen Color Display, Programmable, Wi-Fi,...
20 Mysa Smart Thermostat for Electric in-Floor Heating Mysa Smart Thermostat for Electric in-Floor Heating
Bestseller No. 1
Amazon Smart Thermostat – ENERGY STAR certified, DIY install, Works with Alexa – C-wire required
  • Smart upgrade - Amazon Smart Thermostat is an easy way to switch from a traditional thermostat and help reduce energy usage.
  • Save money - After purchase, Amazon will send you an email with details about 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.
  • Automatic comfort - Alexa can do the programming for you, updating the temperature to keep you comfortable.
  • On-the-go control - Let Alexa set the temperature, or set it yourself from anywhere with the Alexa app.
SaleBestseller No. 2
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...
  • 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,...
  • 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...
  • 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...
SaleBestseller No. 3
Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy...
  • COMFORT COMES IN YOUR COLOR. Personalize your Wi-Fi Smart Color Programmable Thermostat to fit your décor.
  • SAVE ENERGY AND GET REWARDED by checking with your energy provider about available energy savings rebates to save on your purchase (use rebate finder...
  • YOUR SCHEDULE. YOUR WAY. Flexible programming options for your schedule or utility company’s peak rate pricing.
  • EASY OPERATION AND INTUITIVE. Bright, easy-to-read touchscreen makes for simple operation.
  • COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard...
SaleBestseller No. 4
Google Nest Learning Thermostat - Programmable Smart Thermostat for Home - 3rd Generation Nest...
  • No more programming: With Auto-Schedule, the Google Nest Learning Thermostat learns from you and programs itself.
  • Home/Away Assist: don't heat or cool an empty home. Home/Away Assist adjusts the temperature after you leave.
  • Remote control: Control your thermostat from anywhere using the Nest app.
  • Know more, save more Check your Energy History to see how much energy you use and why.
  • Look for the Leaf: The Nest Leaf appears when you choose a temperature that saves energy.
SaleBestseller No. 5
Ecobee3 Lite SmartThermostat, Black
  • Save up to 23% annually on heating and cooling costs (compared to a hold of 72°F)
  • Control from anywhere using your Android or iOS device
  • Add SmartSensor to manage hot or cold spots and deliver enhanced comfort to the rooms that matter most
  • Automatically pauses your heating or cooling when a door or window is left open (requires ecobee SmartSensor for doors and windows and a Smart...
  • PLAYS WELL WITH OTHERS: ecobee3 lite works with your favorite smart home setups, including Apple HomeKit, Amazon Alexa, Google Assistant, Microsoft...
Bestseller No. 6
Emerson Sensi Wi-Fi Smart Thermostat for Smart Home, DIY, Works With Alexa, Energy Star Certified,...
  • PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties
  • SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling,...
  • 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...
  • SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your...
  • 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...
SaleBestseller No. 7
Wyze Programmable Smart WiFi Thermostat for Home with App Control, Energy Saving, Easy Installation,...
  • Easy DIY installation: Step-by-step guided installation in the Wyze app (less than 30 min). Work with 90% home systems, C-wire adapter included for...
  • Control from the app: You can control the temperature from your phone no matter where you are, or turn it off when you are away; Keep pets comfortable...
  • Works with voice assistants: Adjust the thermostat with your voice by asking Alexa or Google assistant.
  • 7-Day scheduling: Create schedules for Home, Sleep, and Away for every day so you don’t have to keep going back and forth to your thermostat.
  • Usage tracking with insights: Like an energy-saving gnome inside your phone, the Wyze app will recommend actionable insights based on your usage to...
SaleBestseller No. 8
ecobee3 Smarter Wi-Fi Thermostat with Remote Sensor, 2nd Generation
  • Smart, really smart - intuitively understands when to turn on your heating or cooling equipment based on your home's unique energy profile, the...
  • Knows you have a life - senses whether anyone's home and which rooms are occupied, delivering comfort when you're at home and saving you energy and...
  • Lowers your energy bills - ecobee saves homeowners an average of 23% annually, paying for itself in energy savings
Bestseller No. 10
Lennox 12U67 iComfort S30 Ultra Smart Programmable Thermostat, Geo-Fencing, Remote Access, Wi-Fi and...
  • Your installations went faster and smoother. With automatic system setup, iComfort S30 significantly reduces installation time. Plus with the iComfort...
  • You’ll be aware of issues before they happen. With the proactive monitoring offered by iComfort thermostats, you’ll know something is wrong before...
  • You can address problems remotely. With the iComfort S30 thermostat, you won’t just identify the problem, you may even be able to fix it remotely....
SaleBestseller No. 11
ecobee SmartThermostat with Voice Control , Black
  • Save up to 26% annually on heating and cooling costs (compared to a hold of 72°F).INSTALLATION: Easily install it yourself in 45 minutes or less with...
  • Included SmartSensor extends comfort to your most important rooms
  • Comes with Siri and Alexa Built-in for calls, music, and added control (Apple HomePod mini required to enable Siri)
  • Automatically pauses your heating or cooling when a door or window is left open (requires ecobee SmartSensor for doors and windows and a Smart...
  • Integrates seamlessly with your preferred smart home system. Compatibility: Gas, Oil, Electric, Dual-fuel, Conventional (2H/2C), Heat Pump (4H/2C),...
SaleBestseller No. 12
Honeywell Home T9 WiFi Smart Thermostat with 1 Smart Room Sensor, Touchscreen Display, Alexa and...
  • SAVE MONEY AND ENERGY. Adjust your ENERGY STAR certified thermostat from anywhere with your mobile device, or let your home automatically react to...
  • LIVE AND SLEEP SMARTER. Choose the temperature in a specific room, like the bedroom, to be exactly what you want it to be, to help get a better...
  • AMAZING SENSOR RANGE. The battery powered Smart Room Sensors utilize unique Honeywell Home technology to deliver an efficient signal up to 200 ft...
  • MULTI-ROOM FOCUS. Don’t be forced to choose one room over another, the T9 Smart Thermostat can handle multiple rooms to focus on (requires sensors).
  • CONTROL IT YOUR WAY. Control the T9 using the Resideo app or through Amazon Alexa, Apple HomeKit, Google Assistant, and more.
SaleBestseller No. 13
Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and...
  • ENERGY STAR CERTIFIED. See your energy use in the Monthly Energy Report, and help save even more with a schedule that adapts to your lifestyle, and by...
  • AUTO HOME AND AWAY MODE. Adjust your thermostat from anywhere with your mobile device, or let your home automatically react to your schedule with...
  • MULTI-ROOM FOCUS. Add Smart Room Sensors to focus the temperature on multiple rooms for comfort where it matters to you. (Sensors sold separately)....
  • COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard...
  • SMARTER, SIMPLER SETUP. Everything you need comes in the box, including a power adapter so that the T9 works in most homes. The T9 intuitively...
Bestseller No. 14
Mysa Smart Thermostat for Electric Baseboard and in-Wall Heaters V2 | Connects with Smart Devices,...
  • For High/Line Voltage Systems — Mysa works with 120-240V electric baseboards and electric fan-forced heaters and requires one neutral or second live...
  • 40% Smaller + New Features, Including Adaptive Display Technology.
  • Adaptive Brightness Technology - Use Sleep and Wake on Approach to Set Your Preferred Display Brightness
  • Smart Integrations — Mysa works with Alexa, Google Assistant, and Apple HomeKit. Stay cozy and connected with Mysa.
  • Use the app to set a schedule for your thermostat in less than a minute.
Bestseller No. 15
ecobee4 Smart Thermostat with Built-in Alexa, Room Sensor Included
  • Room sensor manages hot or cold spots
  • Detects room occupancy for optimal comfort
  • Built-in Amazon Alexa Voice Service 
  • Far-field voice recognition across the room
  • Free ecobee Android and iOS mobile app
SaleBestseller No. 16
Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy...
  • PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties
  • EASY DIY INSTALLATION: Use the built-in level, illuminated easy-click terminals and step-by-step app instructions for a quick installation; Works with...
  • SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling,...
  • SLEEK, MODERN DESIGN: The large color display features easy-to-read temperatures and intuitive menus. Available in black, white and silver to...
  • CONTROL FROM ANYWHERE: Remotely control your home comfort from your smartphone or tablet using the Sensi mobile app for Android and iOS devices
Bestseller No. 17
Smart Thermostat Installation
  • Disconnect your current thermostat
  • Wire one thermostat to power and your HVAC system. C-Wire required
  • Configure your device to work with SmartApp and Alexa integration (Alexa device sold separately). Accounts must be created by Customer. Setup of Alexa...
  • Testing new device for proper function. Clean up area. Packaging to be disposed of by Customer
  • Please have all areas where the installation is occurring fully accessible and clear of obstructions for the technician
Bestseller No. 18
Honeywell Home Honeywell THX321WFS2001W T10 Pro Smart Thermostat with RedLINK, White
  • Country of Origin: UNITED STATES
  • The Package Length of the product is 7.11 inches
  • The Package Width of the product is 14.22 inches
  • The Package Height of the product is 15.49 inches
SaleBestseller No. 19
Sensi Touch Smart Thermostat by Emerson with Touchscreen Color Display, Programmable, Wi-Fi, Mobile...
  • PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties
  • EASY DIY INSTALLATION: Use the built-in level, illuminated easy-click terminals and step-by-step app instructions for a quick installation. Works with...
  • SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling,...
  • SLEEK, MODERN DESIGN: The large color display features easy-to-read temperatures and intuitive menus. Available in black, white and silver to...
  • CONTROL FROM ANYWHERE: Remotely control your home comfort from your smartphone or tablet using the Sensi mobile app for Android and iOS devices
Bestseller No. 20
Mysa Smart Thermostat for Electric in-Floor Heating
  • For High/Line Voltage Systems — Mysa is designed for electric underfloor heating and retrofits with most existing brands. Mysa does not work with...
  • Class A GFCI Protector — Mysa is safe to enjoy worry-free and comfortably in your kitchen or bathroom. Mysa does not work with Class B GFCI...
  • Smart Integrations — Mysa works with Alexa, Google Assistant, and Apple HomeKit. Stay cozy and connected.
  • Sleek, Minimalist Design — Mysa’s premium look subtly enhances your home’s style. Goodbye, boring beige!
  • Quick Install — Mysa installs easily in 20 minutes or less with step-by-step online guides and videos.

Having trouble finding a great smart thermostat?

This problem is well understood by us because we have gone through the entire smart thermostat research process ourselves, which is why we have put together a comprehensive list of the best smart thermostats available in the market today.

After hours of searching and using all the models on the market, we have found the best smart thermostat for 2023. See our ranking below!

How Do You Buy The Best Smart Thermostat?

Do you get stressed out thinking about shopping for a great smart thermostat? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching smart thermostat, which is why we have assembled a comprehensive list of the greatest smart thermostat available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for smart thermostat that you consider buying. Your questions might include the following:

  • Is it worth buying an smart thermostat?
  • What benefits are there with buying an smart thermostat?
  • What factors deserve consideration when shopping for an effective smart thermostat?
  • Why is it crucial to invest in any smart thermostat, much less the best one?
  • Which smart thermostat are good in the current market?
  • Where can you find information like this about smart thermostat?

We’re convinced that you likely have far more questions than just these regarding smart thermostat, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for smart thermostat, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible smart thermostat. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an smart thermostat buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available smart thermostat currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of smart thermostat has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an smart thermostat?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your smart thermostat.
  5. Customer Ratings: Number ratings grade smart thermostat objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their smart thermostat.
  7. Product Quality: You don’t always get what you pay for with an smart thermostat, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an smart thermostat is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining smart thermostat information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding smart thermostat is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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