10 Best Wifi Thermostats 2025 in the United States

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 Smart Thermostat Essential is a well-rounded choice for those looking to upgrade to a smart heating and cooling solution. Its standout feature is its broad compatibility with major smart home platforms like Siri, Alexa, and Google Assistant, making it a versatile option for users with various smart devices at home.

Installation should be straightforward thanks to the included components like screws, drywall plugs, and wire labels, although some basic DIY skills could be helpful. The thermostat’s minimalist design and round shape give it a sleek look, while the LCD display ensures readability. It also supports a range of control methods, including touchpad and smartphone apps on both iOS and Android, making remote access convenient.

In terms of energy-saving features, the Auto-Scheduling and Auto-Away Mode are designed to optimize energy use, potentially lowering utility bills. The device is battery-powered, which can be a plus for ease of placement but may require regular battery changes. Display quality is standard with an LCD screen, which might not match the clarity of newer technologies like OLED. This makes it a solid option for homeowners looking for a smart thermostat that integrates well with existing smart home systems and offers helpful energy-saving features.

The Google Nest Learning Thermostat (4th Gen, 2024) is designed to be an energy-efficient and user-friendly device, ideal for those wanting to manage their home heating and cooling with minimal effort. A significant strength is its broad compatibility with most 24V systems, including gas, electric, and radiant, meaning it should work in many homes without requiring additional wiring, making installation straightforward and typically under 40 minutes.

The inclusion of the Nest Temperature Sensor helps address hot and cold spots, ensuring more precise temperature control across different rooms. The thermostat’s smart scheduling and Adaptive Eco feature further enhance energy savings, with the potential to reduce heating and cooling bills by up to 15%. Smart home integration is seamless, as it works with both Alexa and Google Home, allowing easy voice control and app management.

The user interface is intuitive, with a large, borderless display and Dynamic Farsight providing clear visibility of the information from afar. However, while it offers numerous benefits, the price might be a consideration for budget-conscious users. Additionally, its reliance on a CR2 battery, though included, may be seen as a minor inconvenience for those preferring battery-free devices. Nonetheless, for those seeking an advanced, stylish, and energy-efficient thermostat that integrates well with smart home systems, this product is an excellent choice.