10 Best Digital Thermostats 2025 in the United States

The Amazon Smart Thermostat is a modern digital thermostat designed to help users save money and energy through smart technology. One of its primary strengths is its compatibility with Alexa and the Ring app, allowing users to control the thermostat remotely or via voice commands. This is particularly useful for those who already have an Alexa-enabled ecosystem at home.

Its programmability is robust, offering up to seven configurable time periods per day, which can be managed through the Alexa app, making it easy to tailor to individual schedules and preferences. Smart features like automatic control based on user presence (via Hunches) and temperature sensors help maintain optimal comfort by addressing hot or cold spots in the home. The thermostat also provides energy reports, allowing users to monitor and manage their energy consumption better.

However, the device does require a C-wire for installation, which might pose a challenge for some users whose homes lack this wiring. The installation process is guided through the Alexa app and described as straightforward, but having to potentially use tools like a power drill might be intimidating for some. The display and interface are simple, with basic touch controls on the device, which might be less intuitive compared to more advanced touch-screen models. Despite these minor drawbacks, the Amazon Smart Thermostat is a reliable and cost-effective solution, especially for those integrated into the Amazon smart home ecosystem.

The Google Nest Thermostat in Charcoal is a smart and programmable thermostat designed to help you save energy and stay comfortable. It stands out with its ENERGY STAR certification, ensuring it's energy-efficient. One of its biggest strengths is its versatile compatibility, working with most home systems without needing a C wire, although some specific setups might require one. You can easily check compatibility using Google's online tool before purchasing, which is very user-friendly.

The thermostat is highly programmable via the Google Home app on your smartphone, allowing you to create an energy-efficient schedule that can be adjusted remotely. This is great for families who want to manage their home's temperature from anywhere, whether on a phone, laptop, or tablet. The smart features are notable too; it automatically turns down when you leave to save energy and includes HVAC monitoring to keep an eye on your heating and cooling systems, sending alerts if something seems off. It also works with Google Assistant and other Matter-certified voice assistants, adding convenience with voice control.

The display, while small at 2 inches and using an LCD type, is backlit and provides clear visibility. In terms of installation, it's designed for wall mounting and includes all necessary components like mounting screws and a steel plate. However, some users might find the need for batteries (2 A batteries included) slightly inconvenient. The one-year warranty is standard but not particularly impressive. The Google Nest Thermostat is ideal for tech-savvy homeowners looking for an energy-efficient, smart solution to manage their home's temperature effectively.

The ecobee Smart Thermostat Premium stands out in the digital-thermostats category due to its extensive compatibility and smart features. It works with Siri, Alexa, and Google Assistant, making it highly versatile for varying smart home setups. Its programmability is top-notch, allowing users to save up to 26% annually on heating and cooling costs, which is further supported by its ENERGY STAR certification.

The included SmartSensor automatically adjusts temperatures in different rooms, ensuring comfort throughout the home. The built-in air quality monitor, smoke alarm detection, and alerts for possible break-ins add significant value, transforming this thermostat into a comprehensive home monitoring hub. The vibrant display and intuitive interface enhance user experience, making it easy to navigate and control settings.

Additionally, the thermostat's ability to act as a smart speaker for Siri or Alexa and play music through Spotify is a unique feature that integrates entertainment with utility. Installation is straightforward, especially with the included Power Extender Kit for homes without a C-wire, accommodating most 24VAC HVAC systems effortlessly. However, gaining access to some advanced features like door/window sensors and enhanced security alerts requires a subscription to the ecobee Smart Security plan, which may be an additional cost. Despite these minor drawbacks, the ecobee Smart Thermostat Premium is an excellent choice for those seeking an efficient, multi-functional, and smart home-compatible thermostat.