What is a wifi smart thermostat?

A wifi smart thermostat is a device that controls a home's temperature remotely via internet connection.

Do wifi smart thermostats save energy?

Yes, wifi smart thermostats can save energy by automating temperature adjustments based on your habits.

Can I control a wifi smart thermostat from my smartphone?

Yes, most wifi smart thermostats can be controlled from a smartphone using a dedicated app.

Do all wifi smart thermostats work with all types of HVAC systems?

Not always, compatibility depends on the specific thermostat and HVAC system.

What features should I look for in a wifi smart thermostat?

Consider features like remote access, energy usage reports, learning abilities, and compatibility with your HVAC system.

Updated: April, 2026

Best wifi smart thermostats

Save up to 50% Off

1

Honeywell Home

9.8

Exceptional

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray

20% Off

Why we love it

Customizable color touchscreen.

Smart learning for efficient heating.

Energy Star certified for savings.

Main highlights

Customizable Color Touchscreen
Personalize your thermostat to fit your décor with a vibrant, easy-to-read screen.

Ideal for Smart Home Integration
Perfect for homes with Wi-Fi connectivity and compatible smart devices.

Praised Smart Learning Feature
Learns heating/cooling times to maintain comfort efficiently.

More info
How do we rank?

Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you

Careful review Our team ensures quality, value, and fit based on real user feedback

Trusted insights AI and human analysis guide your decisions, reflecting real user priorities
Real users impact

Thousands of users trust our site daily

Based on millions of stores and reviews

Shoppers influence our rankings
Analyzing top stores
How do we rank?

Using our advanced technology, we scan thousands of products and stores, analyzing reviews, ratings, and trends to find what matters most to users like you.

Our team then reviews the data and real user feedback, combining AI and human insights to bring you real-time, top-rated recommendations to guide your decisions with clarity and confidence.
2

ecobee

9.5

Excellent

ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant

Main highlights

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

More info
3

Emerson

9.4

Excellent

Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55

35% Off

Why we love it

Easy DIY installation without a C-wire.

Energy savings with flexible scheduling.

Comprehensive smart maintenance alerts.

Main highlights

Energy Saving Feature
ENERGY STAR-certified, saves up to 23% on HVAC energy.

Ideal for Smart Homes
Works seamlessly with Alexa and other smart home systems.

Praised Manual Controls
Customers love the clear screen and intuitive button controls.

More info
4

Honeywell Home

9.2

Excellent

Honeywell Home RTH6580WF Wi-Fi 7-Day Programmable Thermostat, White

50% OffLimited Time Deal

Why we love it

Energy-efficient with smart tracking.

Compatible with most heating and cooling systems.

Remote control via app or voice assistants.

Main highlights

Energy Efficiency and Savings
ENERGY STAR certified, offers energy reports, and personalized tips for reducing energy use.

Remote Climate Control
Ideal for users needing remote access during trips or regular schedules.

Accurate Temperature Control
Customers praise accurate temperature readings and reliable performance.

More info
5

Google

8.9

Very Good

Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Charcoal

20% Off

Why we love it

Energy-efficient scheduling saves money.

Easy remote control via app.

Compatible with smart home systems.

Main highlights

Energy Savings Feature
ENERGY STAR certified thermostat helps save energy and reduce bills.

Ideal for Smart Homes
Perfect for homes using Google Home or other smart platforms.

Ease of Use Praised
Customers love the easy installation and intuitive app control.

More info
6

meross

8.8

Very Good

meross Smart Thermostat for Home, WiFi Thermostat Works with Matter, Alexa, Apple Home, Google Assistant, App & Voice Control, 7x24h Scheduling, Energy Saving, C-Wire Required

36% Off

Why we love it

Compatible with most systems.

Easy DIY installation.

Energy-saving capabilities.

Main highlights

Wide Compatibility with Heating and Cooling Systems
Compatible with 95% of systems, excluding electric baseboard heaters. C wire required; adapter available.

Perfect for Smart Home Integration
Integrates with Apple Home, Alexa, Google Home, and SmartThings via Matter technology.

Highly Praised Smart Scheduling
Offers 7x24h scheduling for effortless temperature management, even offline.

More info
7

Amazon

8.6

Very Good

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

Why we love it

Easy installation with Alexa guidance.

Energy-saving features reduce bills.

Integrates seamlessly with Alexa and Ring.

Main highlights

Energy Savings and Easy Installation
Amazon Smart Thermostat helps reduce energy usage and comes with easy installation via Alexa app.

Ideal for Smart Home Integration
Perfect for homes using Alexa and Ring for seamless temperature control.

Praised for Alexa Integration
Customers love the effortless control with Alexa voice commands.

More info
8

Honeywell Home

8.4

Good

New! Honeywell Home Smart Thermostat, Conventional/Heat Pump Compatibility, WiFi Thermostat for Home, X2S, Gray

12% Off

Why we love it

Seamless smart home integration.

Energy-saving scheduled programming.

Customizable display and alerts.

Main highlights

Smart Connectivity and Control
Connect via WiFi and control with First Alert app, Alexa, Google Assistant, or Apple Home Kit.

Ideal for Energy-Conscious Homes
Energy Star certified with scheduling and auto-away features to reduce power consumption.

Praised Smart Home Compatibility
Matter Certified for reliable integration with top smart home platforms.

More info
9

Emerson

8.3

Good

Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Easy DIY, Works With Alexa, Energy Star Certified, ST25, Most Systems C-Wire Not Required, Except On Heat/Cool Only and Heat Pump System

Why we love it

Easy DIY installation with built-in level.

Remote control via mobile app.

Energy-efficient, saves on HVAC costs.

Main highlights

Easy Installation and Compatibility
Simple DIY setup with built-in level; works with most home HVAC systems.

Ideal for Energy Savings
Perfect for households wanting to reduce HVAC energy costs with flexible scheduling.

Highly Rated Mobile App Control
Customers praise the convenience of controlling the thermostat remotely via smartphone.

More info
10

Honeywell Home

8.1

Good

Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Energy Star, C-Wire Required

10% Off

Why we love it

Significant energy savings potential.

Compatible with major smart home systems.

Simple installation process.

Main highlights

Energy Efficiency Savings
Save between 8% and 16% on heating and cooling bills with the T5 thermostat's scheduling feature.

Smart Home Integration
Ideal for users wanting remote control via Alexa, Apple HomeKit, or Google Assistant.

Easy Installation and Use
Customers praise the straightforward installation and effective remote temperature control.

More info

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Frequently Asked Questions

What is a wifi smart thermostat?
A wifi smart thermostat is a device that controls a home's temperature remotely via internet connection.

Do wifi smart thermostats save energy?
Yes, wifi smart thermostats can save energy by automating temperature adjustments based on your habits.

Can I control a wifi smart thermostat from my smartphone?
Yes, most wifi smart thermostats can be controlled from a smartphone using a dedicated app.

Do all wifi smart thermostats work with all types of HVAC systems?
Not always, compatibility depends on the specific thermostat and HVAC system.

What features should I look for in a wifi smart thermostat?
Consider features like remote access, energy usage reports, learning abilities, and compatibility with your HVAC system.

Our top pick

1
20% Off

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray
The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is a versatile and efficient solution for modern home climate control. Its customizable color touchscreen allows users to personalize the display to match their home décor, while the Smart Response Technology ensures optimal comfort by learning the time it takes to heat or cool your home. This thermostat is ideal for smart homes, easily integrating with Wi-Fi and compatible with Amazon Alexa, Google Assistant, and IFTTT for convenient voice and app control. Energy Star certification highlights its energy-saving capabilities, making it a cost-effective choice. Despite some minor installation challenges and limited app features, it remains a popular choice for its reliability and smart learning capabilities. With flexible programming options and compatibility with various heating and cooling systems, the Honeywell RTH9585WF stands out as a top choice for those seeking a balance of style, functionality, and energy efficiency.

You can help us improve our product reviews by providing us with your feedback. Please share your thoughts in the section below.

Best wifi smart thermostats

9.8

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray

Why we love it

Main highlights

How do we rank?

How do we rank?

Analyzing top stores

How do we rank?

9.5

ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant

Main highlights

9.4

Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55

Why we love it

Main highlights

9.2

Honeywell Home RTH6580WF Wi-Fi 7-Day Programmable Thermostat, White

Why we love it

Main highlights

8.9

Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Charcoal

Why we love it

Main highlights

8.8

meross Smart Thermostat for Home, WiFi Thermostat Works with Matter, Alexa, Apple Home, Google Assistant, App & Voice Control, 7x24h Scheduling, Energy Saving, C-Wire Required

Why we love it

Main highlights

8.6

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

Why we love it

Main highlights

8.4

New! Honeywell Home Smart Thermostat, Conventional/Heat Pump Compatibility, WiFi Thermostat for Home, X2S, Gray

Why we love it

Main highlights

8.3

Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Easy DIY, Works With Alexa, Energy Star Certified, ST25, Most Systems C-Wire Not Required, Except On Heat/Cool Only and Heat Pump System

Why we love it

Main highlights

8.1

Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Energy Star, C-Wire Required

Why we love it

Main highlights

Frequently Asked Questions

Our top pick

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray

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