10 Best Amazon Smart Thermostats 2025 in the United States

The Google Nest Learning Thermostat (4th Gen) is a smart thermostat designed to 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, and usually doesn’t need extra wiring, making installation simpler for most homes. If you enjoy controlling things from your phone or by voice, this thermostat works well with Alexa, Apple HomeKit, and Google Assistant, plus it’s compatible with the latest smart home standards for easy integration.

One of its standout features is the learning ability—it studies your habits and even takes outside weather into account to adjust your home’s temperature naturally. This can help reduce energy bills, with potential savings of around 12% for heating and 15% for cooling. The included Nest Temperature Sensor lets you manage different rooms more precisely, so you can avoid hot or cold spots.

The design is sleek and modern, with a large, bright touchscreen display that adjusts automatically based on the lighting and can show useful info like the time or weather. The thermostat also notifies you before making energy-saving schedule changes, giving you control over adjustments. Installation is generally straightforward, though some older or unusual HVAC systems might need professional help or additional wiring. Since it relies on Wi-Fi, remote controls depend on a stable internet connection. While setup and features might seem a bit complex initially for those new to smart home tech, they are manageable with the Google Home app. This thermostat suits anyone looking to upgrade to a smart, energy-efficient system that blends well with popular smart home ecosystems and offers hands-off comfort management with some manual control when needed.

The Google Nest Thermostat is a smart, programmable WiFi thermostat designed to help you save energy while ensuring home comfort. It's ENERGY STAR certified, indicating energy efficiency. Compatibility-wise, it works with most homes without a C wire but may require one for specific systems. Installation is relatively simple, with included mounting screws and a steel plate, though some systems might need additional accessories.

The thermostat learns your schedule through the Google Home app, allowing it to create an energy-efficient heating or cooling plan. Remote access is robust, letting you control the temperature from anywhere using a phone, laptop, or tablet. It also integrates well with smart home systems, particularly Google Assistant and Matter-certified voice assistants, enabling voice control. Additionally, it provides energy reports and suggestions for further savings via the Savings Finder feature. Its HVAC monitoring offers maintenance alerts, adding another layer of convenience.

The design is sleek and modern, with a charcoal finish and an LCD display that offers clear visibility. However, it requires two AA batteries, which some might find inconvenient. The lack of a lock feature might be a drawback for those needing extra security. The screen size is limited to 2 inches, which might be small for some users. In summary, the Google Nest Thermostat is a strong contender for those seeking a smart thermostat with good integration and remote control capabilities, though minor inconveniences like battery requirements and screen size may not appeal to everyone.

The Honeywell Home RTH9600WF Smart Color Thermostat is a feature-rich, ENERGY STAR-certified device designed to help you save energy while offering customizable and convenient control over your home's heating and cooling. It is compatible with forced air, hot water, steam, and heat pump systems, but it's not suited for electric baseboard heat and requires a C-wire for proper installation. If your home lacks a C-wire, you might need a power adapter, which could complicate the setup process for some users.

With its intuitive touchscreen display, users can easily customize the screen color and access on-screen comfort information, including indoor and outdoor temperatures and humidity levels. The thermostat also provides daily weather forecasts, enhancing its utility. Its smart features include compatibility with major smart home systems like Amazon Alexa, Google Assistant, and Microsoft Cortana, allowing you to control the thermostat remotely via the mobile app or voice commands.

This remote access, combined with flexible programming options, makes managing your home's climate convenient. Moreover, the thermostat offers energy reports and personalized tips to help you track and reduce your energy usage, potentially saving you money over time. For those interested in further savings, it supports utility demand response programs. It is important to check compatibility with your home system beforehand, especially regarding the C-wire requirement.