10 Best Smart Thermostats 2026 in the United States

The ecobee Smart Thermostat Premium is a versatile and user-friendly option for smart control of home heating and cooling. It supports Wi-Fi connectivity and integrates well with popular voice assistants like Siri and Alexa, enabling easy voice commands and remote control via your smartphone. A key feature is the included SmartSensor for doors and windows, which monitors entry and motion while adjusting the temperature in key rooms to reduce uncomfortable hot or cold spots. This can improve comfort and potentially save energy, with ecobee claiming up to 26% annual savings on heating and cooling costs.

Additional features include a built-in air quality monitor that alerts you to poor indoor air quality and reminds you when it’s time to change your furnace’s filter, helping maintain a healthy home environment. The thermostat is ENERGY STAR certified, ensuring it meets efficiency guidelines. Installation typically requires hardwiring, so basic electrical work or professional assistance might be necessary. The LCD display with backlight and built-in speaker enhance usability, and smart scheduling features allow customization of temperature settings to fit daily routines.

Some advanced features, such as customizable security alerts for motion or entry, require a subscription to ecobee Smart Security, which is an additional cost. Also, the hardwired power source requirement may limit installation options in some homes. This thermostat is well suited for homeowners seeking a smart, energy-saving device with advanced comfort controls, air quality monitoring, and compatibility with voice assistants or integrated home security.

The Google Nest Thermostat is a smart thermostat designed to help you save energy while keeping your home comfortable. It works with most heating and cooling systems—about 85% compatibility—and supports Wi-Fi, so you can control it remotely via your phone, tablet, or laptop. It integrates smoothly with popular smart home assistants like Google Assistant and Alexa, allowing voice control if you have a compatible device. Installation is straightforward for most users, usually taking about 30 minutes with the included hardware and instructions.

One handy feature is that the thermostat automatically lowers the temperature when you leave, helping reduce wasted energy. You can create energy-efficient schedules through the Google Home app and receive suggestions for even more savings via the Savings Finder tool. The thermostat also monitors your HVAC system’s health and alerts you if maintenance is needed, which can prevent costly repairs. For some heating and cooling setups, especially simpler or specialized systems, you may need an additional power accessory called a C wire, which might complicate installation.

The Nest Thermostat offers basic scheduling but lacks advanced learning abilities found in higher-end models that adapt to your habits over time. It is a good choice for people who want an easy-to-use, energy-saving thermostat with solid smart home integration, though those looking for deep learning features or full compatibility with every system might find limitations.

The Honeywell Home RTH9585WF1004 is a solid choice for anyone looking to enhance their home’s comfort and energy efficiency with a smart thermostat. Its compatibility with major smart home systems like Alexa, Google Home, and SmartThings makes it versatile for various users. With a customizable color touchscreen, it not only looks good but also offers an intuitive interface for easy programming and adjustments.

One of its standout features is its learning capability, which allows the thermostat to adapt to your schedule and preferences, optimizing energy usage. Additionally, it provides valuable energy reports, helping you monitor your consumption and potentially save on utility bills. The inclusion of geofencing technology is a bonus, as it adjusts the temperature based on your location, ensuring a comfortable environment when you arrive home.

Installation is reported to be straightforward, making it accessible for most users without needing professional help. Plus, you will receive intelligent alerts for maintenance reminders and any connectivity issues, enhancing the user experience. However, there are a few drawbacks to consider. While it offers many features, some users might find the interface a bit cluttered. The reliance on Wi-Fi means that if your internet goes down, your access to remote features can be limited. Additionally, the pricing may be on the higher side compared to basic models, which could deter budget-conscious shoppers.