10 Best Wifi Thermostats 2026 in the United States

The Google Nest Learning Thermostat (4th Gen) is a polished and smart choice for anyone looking to upgrade their home's heating and cooling control. It works with most common home HVAC systems without needing a C wire in many cases, which can simplify installation. The setup is mostly DIY-friendly, and the thermostat connects smoothly to Wi-Fi, letting you control it from the Google Home app or by voice through Alexa, Siri, or Google Assistant. One standout is its beautiful, large, and easy-to-read display that adjusts brightness automatically, making it simple to see the temperature info from across the room.

With the included Nest Temperature Sensor, you can manage temperatures in different rooms, helping eliminate hot or cold spots in your home. This model also learns your schedule and how outdoor conditions affect indoor temperature to optimize energy use, potentially saving about 12% on heating and 15% on cooling bills. Its new Adaptive Eco mode smartly keeps your home comfortable while maximizing savings when you're away. The thermostat supports Matter, allowing easy integration with a wide range of smart home devices.

Although it’s compatible with many systems, some very old or unusual HVAC setups might not work perfectly. Additionally, its price is higher than basic thermostats, making it a better fit for users who value smart features and energy savings. This thermostat excels in ease of use, smart automation, and smart home compatibility, making it a solid pick for those wanting a stylish, energy-efficient WiFi thermostat.

The Amazon Smart Thermostat offers a straightforward way to upgrade from a traditional thermostat, especially for those who want to save energy and money. It works with most 24V HVAC systems but requires a C-wire or an additional power adapter, which is important to check before buying. Installation is guided through the Alexa app and is relatively simple, though some tools like a power drill might be needed. The user interface is basic with just three touch buttons on the device itself, but it is complemented by easy remote control via the Alexa app or voice commands through Alexa-enabled devices. This means you can adjust your home's temperature from anywhere, which is convenient.

It integrates well with Amazon's smart home ecosystem and supports temperature sensors from compatible Echo devices to better manage hot and cold spots. Energy-saving features are strong, as it is ENERGY STAR certified and uses Alexa’s smart learning to adjust temperatures automatically based on your routines. However, it doesn't have a built-in microphone, so voice control requires another Alexa device. The display is minimal and focused on simplicity rather than rich visuals.

It connects only to 2.4 GHz WiFi networks, which could be a limitation if your home primarily uses 5 GHz WiFi. If you’re already using Alexa or Ring devices, this thermostat fits nicely into that setup and is an affordable, energy-efficient choice. For those seeking a thermostat with a more advanced screen or broader WiFi compatibility, exploring other options may be worthwhile.

The ecobee New Smart Thermostat Premium stands out in the wifi thermostat category, primarily due to its energy-saving capabilities and smart features. Users can save up to 26% on heating and cooling costs, thanks in part to its SmartSensor that targets temperature adjustments in specific rooms, which is great for maintaining comfort across different areas of the home. The built-in air quality monitor is a significant plus, alerting users to poor air quality and reminding them to change filters to ensure a healthier environment.

Installation is straightforward, with compatibility across most HVAC systems, and the included Power Extender Kit makes it accessible for homes without a C-wire. This means many homeowners can set it up without needing additional help. The large, vibrant display is user-friendly, showcasing a cinematic interface that makes navigation easy even for those not tech-savvy.

The thermostat integrates seamlessly with smart home systems like Apple HomeKit, Google Assistant, and Amazon Alexa, allowing voice control, which enhances convenience. However, to utilize Siri, an Apple home hub is necessary, which could be a limitation for users not already invested in Apple's ecosystem. The thermostat does require a subscription to access some functionalities like advanced security alerts and smart monitoring, which might deter some users due to additional costs. Furthermore, its reliance on Wi-Fi means that any network issues could affect performance.