10 Best Smart Thermostats 2025 in the United States

The Google Nest Learning Thermostat (4th Gen, 2024) stands out with its enhanced learning capabilities and broad compatibility. It supports a wide range of heating and cooling systems without needing a C wire for most installations, which simplifies the setup process for many users.

The learning feature is particularly notable as it allows the thermostat to adapt to your schedule and preferences, potentially offering significant savings on energy bills. Moreover, the inclusion of the Nest Temperature Sensor helps manage temperature variations in different rooms effectively, ensuring a more comfortable home environment.

Integration with smart home systems is seamless, especially with support for both Alexa and Google Home, making remote access and control straightforward via the Google Home app or voice commands. The polished obsidian design, larger display, and Dynamic Farsight feature add to its aesthetic appeal, making it not just functional but also a visually pleasing addition to your home. Despite minor drawbacks like the reliance on a battery and a slightly steep initial learning curve, the Google Nest Learning Thermostat (4th Gen) is a strong contender for enhancing home energy efficiency and comfort with advanced smart home technology.

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.