10 Best Thermostats 2025 in the United States

The Google Nest Learning Thermostat (4th Gen) is a smart thermostat designed to help you save energy and keep your home comfortable with minimal effort. It works with most 24V heating and cooling systems, including gas, electric, and heat pumps, often without needing a C wire, which makes installation easier for many homes. You can control it easily from your phone using the Google Home app, or by voice commands through Alexa, Siri, or Google Assistant, making it convenient to adjust the temperature even when you’re away.

One of its standout features is the learning algorithm that adapts to your schedule and preferences, helping reduce energy use without you having to constantly change settings. The included Nest Temperature Sensor lets you manage temperatures in different rooms, which is great for balancing hot and cold spots in your home. The display is larger and clearer than previous versions, with adjustable brightness and the ability to show useful info like the weather. Energy-saving functions like Adaptive Eco mode and natural heating and cooling adjustments help optimize your system based on outside temperature and sunlight, potentially lowering your heating bills by around 12% and cooling bills by 15%. Installation is fairly straightforward for those comfortable with basic DIY, and it integrates smoothly into modern smart home setups thanks to Matter compatibility.

Some users might find installation challenging without prior experience or professional help. Also, the polished gold finish is stylish but may not suit all home decors. The thermostat requires a CR2 battery, which is included but will need occasional replacement. While many users appreciate the learning features, a few might prefer more manual control options. This thermostat is a great choice for homeowners looking to upgrade to a smart, energy-efficient system with strong compatibility and helpful automation, especially if you value remote control and smart home integration.

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 Google Nest Thermostat is a popular smart thermostat designed for most homes, working with about 85% of heating and cooling systems. It’s ENERGY STAR certified, helping you save energy by automatically adjusting the temperature when you leave your house and allowing you to create custom schedules through the Google Home app. You can control it remotely from your phone or tablet, and it works with voice assistants like Google Assistant and Alexa, making it convenient to adjust the temperature hands-free. One helpful feature is HVAC monitoring, which alerts you if your heating or cooling system needs maintenance.

Installation is designed to be straightforward, usually taking around 30 minutes with all necessary parts included, though some systems may require a C wire or additional power accessory. The thermostat supports programmable schedules and can also prioritize cleaner or cheaper energy usage through Nest Renew if available in your area. On the downside, it requires Wi-Fi for full smart functionality, and voice control needs a compatible smart device. While it’s easy to use, some users might find setting up schedules or connecting to smart home platforms a bit challenging initially.

The device runs on two AAA batteries included in the box and is compact and stylish with a clear display. This makes the Nest Thermostat a great choice for those seeking a smart, energy-efficient thermostat that’s fairly easy to install and offers helpful features for saving energy, especially if you are already using or plan to use Google’s smart home ecosystem.