10 Best Honeywell Smart Thermostats 2026 in the United States

The Honeywell Home RTH9600WF Smart Thermostat is a solid choice for users looking to enhance their home's heating and cooling efficiency. Its ENERGY STAR certification signifies that it helps reduce energy consumption, and it offers useful features like energy reports and personalized energy-saving tips. One of its major strengths is the ability to control the thermostat remotely via a smartphone app or compatible smart home devices like Amazon Alexa and Google Assistant, making it highly convenient for tech-savvy homeowners.

The customizable color touchscreen adds a touch of personalization, allowing users to match it with their home decor. Additionally, the on-screen display provides indoor and outdoor temperature readings, humidity levels, and daily weather forecasts, which many users find beneficial for maintaining comfort.

However, potential buyers should be aware of a few limitations. The thermostat requires a C-wire for installation, which might necessitate an additional power adapter if your home isn’t already set up for it. This could be a drawback for those with older heating systems or those who don't have a C-wire readily available. Moreover, while the compatibility covers various heating setups, it notably excludes electric baseboard heating systems, which can restrict its usability in some households.

The Honeywell Home X8S Premium Smart Thermostat stands out with its vibrant 5-inch customizable touchscreen that’s easy to read and stylish enough to blend with your home décor. It offers good compatibility, working with many heating and cooling systems (except electric baseboard heat), and links seamlessly to popular smart home platforms like Alexa, Google Assistant, and Apple HomeKit, making control from your phone or voice simple. The connectivity supports both 2.4 and 5 GHz Wi-Fi bands, which helps maintain a steady connection. A unique feature is the integration with select video doorbells, allowing you to see and talk to visitors right from the thermostat, which adds convenience beyond basic temperature control.

Its advanced sensors detect when you're home or away, adjusting settings automatically to improve comfort and save energy — plus, it includes a wireless room sensor to focus temperature control where it matters most. Humidity and ventilation controls also help enhance indoor air quality, though these may require extra equipment. While the thermostat supports energy-saving features and qualifies for ENERGY STAR rebates, it relies on a wired connection (C-wire), which might need additional installation if your system lacks one.

The app is user-friendly, though some users might find the setup process a bit involved due to the advanced features. The Honeywell X8S is a solid pick for those seeking a feature-rich smart thermostat that offers smart learning, good home integration, and extra perks like doorbell video access, but it may be less suitable if you need a completely wireless solution or simpler setup.

The Honeywell Home RTH9585WF1004 is a solid choice in the smart thermostat market, particularly for those looking for a programmable and user-friendly device. One of its standout features is its compatibility with various smart home ecosystems like Alexa, Google Home, and SmartThings, making it a versatile option for connected homes. The customizable color touchscreen is intuitive and displays easy-to-read information, including local weather updates and humidity levels, enhancing the user experience.

Users will appreciate the energy-saving capabilities, as this thermostat is Energy Star certified and offers flexible scheduling that can adapt to utility peak pricing. The intelligent alerts for maintenance, like air filter changes, are also a helpful addition, promoting efficient home management.

However, while it boasts many strengths, there are a few drawbacks to consider. Some users might find the initial setup process a bit challenging, especially if they are not familiar with smart devices. Additionally, the Wi-Fi connectivity is limited to 2.4GHz, which may not provide the same speed found in newer 5GHz networks, potentially affecting real-time updates. The warranty period is just one year, which is shorter compared to other brands that may offer extended warranties. Also, while the interface is generally user-friendly, there are indications that the touchscreen may not always be responsive, which can be frustrating.