Our 10 Best Smart Thermostat for 2026 [US]
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10 Best Smart Thermostat of 2026
Tested and Reviewed: Top 10 Smart Thermostat deals with expert ratings from 8.1 to a perfect 10
September 2026 Edition
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1
Editor's Choice9.7
Amazon
Amazon Smart Thermostat, Save money and energy, Works with Alexa and Ring, C-wire required
Editor's bottom line:
“This smart thermostat is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”
Main Highlights
- 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.
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Picked by 397 people today
2
9.5
Sensi
Sensi Lite Smart Thermostat, WiFi, Alexa, DIY, Energy Star Certified, ST25
Main Highlights
- 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 wont 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
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3
9.5
ecobee
ecobee Smart Thermostat Essential - WiFi Thermostat, Energy Star Certified
Main Highlights
- Save up to 23% every year on heating and cooling costs, adjusts to your set schedule to save energy when youre gone and optimize comfort when youre home. Compared to a hold of 72
- Compatible with 85% of systems, check your systems 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 youre gone and optimize comfort when youre 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 systems 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 systems compatibility on the ecobee support page. ecobee.com/compatibility/thermostat
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4
9.2
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Charcoal
Main Highlights
- 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 systems 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, youll need a C wire or other compatible power accessory
- Nest Thermostat turns itself down when you leave, so you dont 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 doesnt 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
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5
9.0
Save 23%
Honeywell Home
Honeywell Home X7S Smart Wi-Fi Programmable Thermostat, Black
23% Off
Main Highlights
- Customizable Display: A sleek 4.3 display delivers enhanced visibility with the option to choose the color and style to match your home
- Advanced Occupancy & Presence Detection: Smart thermostat senses and adjusts settings to maximize comfort when home and save energy when youre away (Requires enablement of Auto Away feature)
- Precision Comfort & Air Quality: Comfort is more than just the perfect temperature, maintain optimal indoor air quality (IAQ) with humidity monitoring to keep air fresh (additional HVAC equipment or accessories may be required)
- Control Remotely: Control from anywhere using the First Alert app - Matter certified for ease of interoperability and also compatible with Amazon Alexa, Google Assistant, Apple Home
- Save Energy: ENERGY STAR certified, the X7S helps reduce energy use and is for energy program participation and rebate opportunities
- System Compatibility: Works with up to 3 heat/2 cool heat pump with electric backup or 2 heat/2 cool conventional systems, hot water heat, forced air (gas, oil, or electric) [does not work with electric baseboard heat (120-240V)]
- Connectivity Requirements: 2.4 or 5.0 GHz WiFi, 802.11ax/ac/a/b/g/n wireless router; C-wire required: If your system does not already have one, a voucher to receive a Honeywell Home C-Wire Adapter by mail at no cost is included in package
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6
Best Value8.8
Save 33%
Honeywell Home
Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, C-Wire Required, Not Compatible with Line Volt Heating Gray
33% Off
Main Highlights
- 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 rebates. 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.
- YOUR SCHEDULE. YOUR WAY. Flexible programming options for your schedule or utility companys 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). C-Wire required.
- ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.
- 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. Our Air products and services work with you and for you, supporting and creating more comfortable surroundings
- Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.
- Fan Control Options include On: Fan is always on; Automatic: Fan runs only when the heating or cooling system is on; and Circulate: Fan runs randomly about 35% of the time.
- The WiFi Smart Color Thermostat works seamlessly with Amazon Alexa and Google Home, as well as our mobile app, so you can control the temperature from anywhere
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7
8.6
Save 20%
Sensi
Sensi Smart Thermostat, Wi-Fi, DIY, Alexa, Energy Star Certified, ST55
20% Off
Main Highlights
- PRIVACY PROTECTION*: Sensi wont 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 dont 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
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8
8.3
Save 15%
Amazon
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required (Pack of 2)
15% Off
Main Highlights
- 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.
Show Price
9
8.1
Save 32%
Honeywell Home
Honeywell Home T5 Smart Wi-Fi Thermostat
32% Off
Main Highlights
- 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. Its your choice. 7-day scheduling programs your thermostat. Geofence technology helps make you comfortable by using your smartphones location to know when youre 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
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