The Best Smart Thermostats of 2023

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 Security subscription)

Integrates seamlessly with your preferred smart home system

Your installations went faster and smoother. With automatic system setup, iComfort S30 significantly reduces installation time. Plus with the iComfort Mobile Setup App technicians can adjust settings and run tests all from their phone, eliminating the time consuming trips of walking back and forth between the thermostat and indoor/outdoor unit.

You’ll be aware of issues before they happen. With the proactive monitoring offered by iComfort thermostats, you’ll know something is wrong before the homeowner does.

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. If the problem does require a truck roll, you can proactively schedule a service call with the homeowner.

You’ll always have the right resources for the job. Since you’ll know what’s wrong, you’ll already know what tools, techs and supplies you’ll need to bring along. That translates to faster service calls for you.

For High/Line Voltage Systems — Mysa works with 120-240V electric baseboards and electric fan-forced heaters and requires one neutral or second live wire.

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.

Quick Install — Mysa installs easily in 15 minutes or less with step-by-step online guides and videos.

Adjust your home heating from anywhere on your Android or iOS device.

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 connecting with your utility efficiency program

AUTO HOME AND AWAY MODE. Adjust your thermostat from anywhere with your mobile device, or let your home automatically react to your schedule with geofencing

MULTI-ROOM FOCUS. Add Smart Room Sensors to focus the temperature on multiple rooms for comfort where it matters to you. (Sensors sold separately). Wire Configuration - 4-Wire. Supports Wi-Fi 802.11 B/G/N 2.4 and 5 GHz

COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V)

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 identifies your home’s heating and cooling type, making it easy to do it yourself

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.

Ceramic space heater with adjustable thermostat for cozy warmth; oscillating option for better heat dispersal in multiple directions

1500-watt high setting; 3 output options: Low, High, or Fan Only; power indicator light lets you know when it’s plugged in

For safety: tip-over switch with auto shut-off and overheat protection with auto shut-off; TUV certificated

Carrying handle for easy transport; not for use in bathrooms, laundry areas, or other high-humidity rooms

Choice of Black or Silver color; backed by an Amazon Basics limited 1-year warranty

Works with Alexa for voice control (Alexa device sold separately).

Smart, really smart - intuitively understands when to turn on your heating or cooling equipment based on your home's unique energy profile, the weather outside, and thousands of other data points to make sure you're comfortable at all times

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 money when you're not

Save up to 26% annually on heating and cooling costs (compared to a hold of 72°F)

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 Security subscription)

Integrates seamlessly with your preferred smart home system

Feels Like Setting: Similar to the “Feels Like” temperature in a weather report, this takes into account temperature and humidity, making your home feel exactly like you want

Allergen Defender: Monitors the air quality and pollen levels in your local zip or postal code and automatically turns the system fan on as needed to clean your home’s air.

Perfect Temp: Allows you to set the ideal temperature. The system then automatically adjusts heating and cooling to maintain that setting

Smart Away Mode: Uses the location services in your smartphone to detect when you’re leaving, and automatically changes the temperature to a more energy-efficient setting.

Alexa Integration: The iComfort E30 smart thermostat is an Amazon Alexa-enabled, smart-home-compatible thermostat. It works with Amazon Echo, Echo Dot and Tap devices allowing the homeowner to ask Alexa to adjust the temperature.

The T5 Smart thermostat is fully compatible with Amazon Alexa, Apple HomeKit, Google Assistant, IFTTT, Cortana and other ecosystems

7-Day Flexible Scheduling or Location Based Temperature control (GeoFencing)

Adaptive recovery learns how long it takes to achieve the right temperature at the right time and automatically runs your system to get to your desired temperature when you want it, with auto change from heat to cool

ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use

COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V)

Programmable smart thermostat that learns your schedule and the temperatures you like and programs itself to help you save energy and stay comfortable

Home/Away Assist automatically adjusts itself to an Eco Temperature after you leave so you don't heat or cool an empty home

Remote control lets family members change the temperature from anywhere on a phone laptop, or tablet[1]

With Energy History just check your phone to see how much energy you used and why, or use Quick View on the thermostat's display to reach Energy History, settings, or your schedule

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]

The Nest Learning Thermostat works with the Nest Temperature Sensor (sold separately) to help make sure a certain room is the exact temperature you want it to be

Beautifully designed with polished metal finishes and bright, high resolution display; Farsight shows you the temperature, weather, or time on your thermostat when you walk in the room

It's easy to install your thermostat typically in 30 minutes or less, with everything you need included in the box; compatible with 95% of heating and cooling systems

Please refer to the product description section below for all applicable legal disclaimers denoted by the bracketed numbers in the preceding bullet points (e.g. [1], [2], etc.)

This Google Product features the Google Seal for Online Marketplace when purchased from a seller other than Amazon.com.

COMFORT COMES IN YOUR COLOR. Personalize your Wi-Fi Smart Color Programmable Thermostat to fit your décor.

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 heat (120-240V).

ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.

SAVE ABOUT 23% ON HVAC ENERGY*: By adjusting the temperature using flexible scheduling, remote access, and geofencing, Sensi customers saved about 23% on HVAC energy usage

MOST INSTALL IN 30 MINUTES OR LESS**: Use the built-in level, illuminated easy-click terminals and step-by-step app instructions for a quick installation. Skip any extra work painting or patching the wall thanks to the standard thermostat size.

SMART HOME COMPATIBLE: Works with Amazon Alexa, Google Assistant, Apple HomeKit, and Samsung SmartThings smart home platforms.

USAGE REPORTS: Monitor current day and historical heating, cooling and fan runtimes right in the app.

CONTROL FROM ANYWHERE: Remotely control your home comfort from your smartphone or tablet using the Sensi mobile app for Android and iOS devices.

SMART ALERTS: Sensi features smart alerts to help detect extreme temperature and humidity levels in your home.

CIRCULATING FAN: Air circulation may improve indoor air quality by helping to regulate temperature and prevent buildup of particles and mold.

SAVE ENERGY AND MONEY: This Alexa-enabled, internet-connected programmable thermostat simply connects to Wi-Fi to control temperature and settings from your smart phone or tablet (fully functional without Wi-Fi as well)

MODERN SLEEK TOUCH SCREEN: The full color, 5-inch display touchscreen allows easy scheduling to provide the most comfortable temperature for your home from anywhere

MULTI-USE COMPATIBILITY: Including heat pump (4 Heat, 2 Cool) or conventional (2 Heat, 2 Cool) systems, any 1-wire internally powered humidifier or dehumidifier, and most 24 VAC HVAC equipment on the market. Not compatible with other Bosch Boiler controls, such as the Logamatic

NEW COMMERCIAL UPDATES: Updates allow control of both evaporation and steam type external humidifier accessories. Plus, hot gas reheat and cool to dehumidify capabilities. Now Dual Fuel system compatible; may work with HVAC systems that use both gas and electric power (more information on updates in product description)

C-WIRE REQUIRED: A C-wire (common wire) is required to power the unit. Two wire systems are not supported. The C-wire is used to provide power to the thermostat and is available on most HVAC systems today that have three or more wires. Third party aftermarket products exist for adding powering options in instances where a C-wire does not exist

ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable

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

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]

It’s easy to install your thermostat, typically in 30 minutes or less, with everything you need included in the box; it’s compatible with 85% of heating and cooling systems

Please refer to the product description section below for all applicable legal disclaimers denoted by the bracketed numbers in the preceding bullet points (e.g., [1], [2], etc.)

The limited warranty for this product applies only if purchased from Amazon.com OR if the product is packaged with a Google Seal for Online Marketplace.

SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR certified Sensi thermostat helps you save on your HVAC energy costs, with features like geofencing, 7-day flexible scheduling, remote access and in-app system usage.

MOST INSTALL IN 30 MINUTES OR LESS**: Use the built-in level and step-by-step app instructions for a quick installation. Skip any extra work painting or patching the wall thanks to the standard thermostat size.

SMART HOME COMPATIBLE: Works with Amazon Alexa, Google Assistant, Apple HomeKit (c-wire required), and Samsung SmartThings smart home platforms.

USAGE REPORTS: Monitor current day and historical heating, cooling and fan runtimes right in the app.

CONTROL FROM ANYWHERE: Remotely control your home comfort from your smartphone or tablet using the Sensi mobile app for Android and iOS devices.

SMART ALERTS: Sensi features smart alerts to help detect extreme temperature and humidity levels in your home.

CIRCULATING FAN: Air circulation may improve indoor air quality by helping to regulate temperature and prevent buildup of particles and mold.

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