10 Best Thermostats 2025 in the United States

The Google Nest Learning Thermostat (4th Gen, 2024) is a smart, energy-saving device that can bring both convenience and efficiency to your home. One of its top strengths is compatibility; it works with most 24V systems common in households, including gas, electric, and heat pump systems, and generally doesn't require complex wiring. This makes it accessible for many users. Installation is relatively straightforward, typically taking around 40 minutes, which is a plus for those who prefer DIY projects. The included Nest Temperature Sensor helps manage hot and cold spots, ensuring that every room can be comfortable, and it integrates well with the Google Home app for easy control and monitoring.

Its smart features are impressive; the device can learn your preferred temperatures and schedules, suggesting energy-saving adjustments you can approve through the app. It also works with Amazon Alexa, allowing for voice control, adding a layer of convenience. Energy savings are another big advantage, with an estimated reduction of 12% on heating and 15% on cooling bills. This makes it a particularly good choice for budget-conscious and eco-friendly users. The user interface is sleek and modern, featuring a polished obsidian finish and a large, easy-to-read display that adjusts brightness automatically or can be manually controlled.

However, there are a few drawbacks. The initial cost might be high for some, and while installation is generally easy, those with less common heating and cooling systems might find it more challenging. Additionally, the reliance on a stable Wi-Fi connection for smart features could be a limitation in areas with poor internet connectivity. In summary, the Google Nest Learning Thermostat (4th Gen) is ideal for those looking for an advanced, user-friendly smart thermostat that offers significant energy savings and broad compatibility.

The 2025 ecobee Smart Thermostat Essential is a robust choice for anyone looking to modernize their home heating and cooling systems. One of its standout features is the potential to save up to 23% on energy costs annually, which can translate to approximately $250 in savings each year, making it a cost-effective option. Its compatibility is impressive, working with 85% of HVAC systems, and it integrates seamlessly with major smart home ecosystems like Apple HomeKit, Google Assistant, and Amazon Alexa. This makes it a versatile choice for various home setups.

The thermostat is easy to control via its color touchscreen or the highly-rated ecobee app, which also provides software updates to keep the device running optimally over time. Its auto-scheduling and auto-away modes help in optimizing energy use by adjusting temperatures based on your presence. For homes without a common wire (C-Wire), the installation is simplified with the optional Power Extender Kit, although this is an additional purchase.

The inclusion of smart features such as indoor humidity detection and energy use optimization during off-peak hours adds to the device's appeal. Additionally, the ability to add SmartSensors for monitoring different rooms can further enhance comfort and energy savings. However, some users might find the need for purchasing additional components like the Power Extender Kit and SmartSensors an extra cost and effort. The device's minimalist design and the clear LCD display make it user-friendly, although users should ensure their system's compatibility using the ecobee Compatibility Checker before purchase.

The Google Nest Learning Thermostat - 3rd Gen (2015) is a smart thermostat that offers a range of impressive features. It is highly compatible with various systems and works with popular smart assistants like Alexa and Google Assistant. This makes it easy to integrate into existing smart home setups. The thermostat learns your schedule and preferences with its Auto-Schedule feature, eliminating the need for manual programming. This can be particularly useful for those who prefer a hands-off approach to managing their home's temperature settings.

Additionally, the Home/Away Assist feature ensures that energy isn't wasted when no one is home, which can lead to significant energy savings over time. The remote control capability via the Nest app allows you to adjust the settings from anywhere, adding an extra layer of convenience. The user interface is simple and intuitive, with a clear digital display and an easy-to-navigate app. However, some users might find the initial setup and installation a bit tricky, although the product does come with comprehensive guides and tools to help with this process.

The thermostat's design is sleek and modern, with a stainless steel finish that adds a touch of sophistication to any home decor. Given that it's a model from 2015, some of its features may not be as advanced as those found in newer models. Battery life is generally good, but occasional maintenance may be required. Despite these minor drawbacks, the Google Nest Learning Thermostat - 3rd Gen remains a strong choice for those looking to enhance their home's energy efficiency and convenience.