10 Best Amazon Smart Thermostats 2025 in the United States

The Amazon Smart Thermostat is a modern and energy-efficient device designed to replace traditional thermostats. It's compatible with most 24V HVAC systems but requires a C-wire for operation, which might necessitate additional setup for some users. Installation is simplified with guided steps via the Alexa app, though it may require basic tools like a drill and level.

The thermostat integrates well with Alexa, allowing for voice control and automatic temperature adjustments based on your routines and preferences. However, it does not support 5GHz wifi networks, which could limit connectivity options for some homes. The device uses Honeywell technology, ensuring reliability backed by 130 years of experience.

It also supports temperature sensors through compatible Echo devices, helping to manage hot and cold spots effectively throughout your home. Users can control the thermostat remotely via the Alexa app, and it provides detailed energy reports, contributing to potential savings on energy bills. Its minimalist design includes three touch buttons for easy on-device control. The requirement for a C-wire and compatibility limitations should be considered before purchase. Additionally, while it offers a one-year warranty, some users might prefer longer warranty periods for greater peace of mind.

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 Learning Thermostat - 3rd Gen (2015) is a smart, programmable thermostat designed to optimize your home's temperature and save energy. One of its standout features is its ability to learn your schedule and preferences, automatically adjusting settings to ensure comfort and efficiency. This device is compatible with 95% of heating and cooling systems, making it highly versatile. Installation is also straightforward, as it typically takes 30 minutes or less with all necessary components included in the box.

Additionally, it offers remote access through your phone, laptop, or tablet, so you can control your home's temperature from anywhere. The Home/Away Assist feature is particularly useful, automatically switching to an Eco Temperature when you leave to avoid heating or cooling an empty home. Users can track their energy usage with the Energy History feature, accessible via phone or the thermostat's display, and receive alerts and reminders for HVAC maintenance.

The design is sleek and modern, with polished metal finishes and a high-resolution display that shows useful information like temperature, weather, or time when you walk into the room. The thermostat integrates seamlessly with various smart home systems, including Google Assistant and Amazon Alexa, providing extensive control options. While it performs well in many areas, the reliance on a steady Wi-Fi connection may be a drawback in homes with unstable internet. This thermostat is an excellent choice for those looking to balance comfort, convenience, and energy savings in their smart home setup.