10 Best Smart Thermostats 2025 in the United States

The Amazon Smart Thermostat is a solid choice for anyone looking to upgrade from a traditional thermostat to a smart option that helps save money and energy. One of its key strengths is its compatibility with Alexa and Ring, which allows for easy voice control and integration into your smart home ecosystem. The thermostat’s learning capabilities are impressive; it can adapt to your schedule and preferences over time, optimizing temperature settings automatically based on your presence at home. The energy-saving features, including potential rebates from energy providers, make it appealing for those looking to lower utility bills.

Installation is designed to be user-friendly, with guidance available through the Alexa app, making it accessible even for those who might not be particularly handy. The ability to monitor energy usage and receive automatic reminders for air filter replacements adds another layer of convenience.

There are some limitations to consider. The requirement for a C-wire for installation might be a hurdle for some users, particularly in older homes where this wiring isn’t always standard. It's also worth noting that while it works with 2.4 GHz networks, it does not support 5GHz connections, which may limit compatibility with some modern routers. Additionally, while the thermostat can work with temperature sensors through compatible Echo devices, it does not include a built-in microphone, meaning you will need to rely on an Alexa-enabled device for voice commands. The reliance on the Alexa app for many features may also deter those who prefer a more standalone experience.

The Google Nest Thermostat is a smart thermostat designed to help you save energy and stay comfortable. It is ENERGY STAR certified, which means it meets energy efficiency guidelines. One of its main strengths is its compatibility with various heating and cooling systems, although some systems may require a C wire or another compatible power accessory for installation. The thermostat's learning capabilities allow it to turn itself down when you leave, preventing energy waste.

Additionally, you can program an energy-efficient schedule through the Google Home app, available on both Android and iPhone devices. Remote access is another advantage, enabling you and your family members to control the temperature from anywhere using a phone, laptop, or tablet. The Nest Thermostat also features HVAC monitoring, which alerts you if something is wrong with your heating or cooling systems and provides maintenance reminders. Integration with smart home systems is seamless, as it works with Google Assistant, Alexa, and other Matter-certified voice assistants. You can even control the temperature with your voice using compatible smart devices.

Geofencing is another useful feature, ensuring the thermostat adjusts based on your location. Installation is relatively easy, and the product includes mounting screws, a steel plate, and a documentation bundle to assist you. However, it is important to check compatibility before purchasing. The Google Nest Thermostat is a well-rounded product with a sleek design and user-friendly features, making it a great choice for those looking to optimize their home's energy efficiency.

The ecobee New Smart Thermostat Premium is a versatile option for anyone looking to upgrade their home climate control system. Its standout feature is the SmartSensor, which optimizes the temperature in key rooms and helps eliminate hot or cold spots. Additionally, the built-in air quality monitor is a nice touch, providing alerts and tips to maintain a healthy living environment. Compatibility is broad, supporting most 24VAC HVAC systems, and the included Power Extender Kit makes it easier to install in homes without a C-wire.

Integration with Siri, Alexa, and Google Assistant ensures seamless control via voice commands, and the option to use it as a smart speaker adds value. The ability to save up to 26% on heating and cooling costs is particularly appealing for those focused on energy efficiency. However, some features, like advanced security notifications and geofencing, require subscriptions to ecobee's Smart Security plan. Also, while the Siri functionality is handy, it does require an Apple home hub.

The design is visually appealing with a vibrant display and modern look, but the installation might be a bit daunting for those not familiar with electrical work. Despite these caveats, the ecobee New Smart Thermostat Premium offers a robust set of features that should satisfy most smart home enthusiasts.