10 Best Smartthings Compatible Thermostat 2026 in the United States

The Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat is a solid choice for anyone looking for a compatible smart thermostat, especially if you're already using SmartThings or other smart home systems like Alexa and Google Home. One of its strong points is the customizable touchscreen display, which not only looks good but also makes it easy to read temperature settings and weather updates. This thermostat offers flexible programming options tailored to your schedule, allowing for energy efficiency and potential savings on utility bills.

The learning capabilities of this thermostat are impressive, as it can adjust based on your habits, and it provides intelligent alerts for maintenance like filter changes and extreme temperature warnings. These features enhance the convenience of managing your home’s climate remotely.

On the downside, while it boasts an Energy Star certification, some users may find the installation process slightly challenging if they aren't familiar with smart devices. Additionally, although it is designed for ease of use, the initial setup may take some time, especially for those who are not tech-savvy. It's also important to note that it requires Wi-Fi for most features, which could be a limitation if your internet connection is unstable. In terms of design, the sleek gray finish will fit well with many home decors, but those looking for a more vibrant color range might be disappointed, as customization is primarily limited to the touchscreen interface. If you're seeking a reliable and feature-rich smart thermostat, the Honeywell Home RTH9585WF1004 is definitely worth considering.

The Google Nest Thermostat stands out in the smart thermostat category with its seamless integration into smart home ecosystems, particularly with SmartThings and Google Assistant. One of its major strengths is the ability to learn your heating and cooling habits, which helps to create an efficient schedule, saving energy and costs in the long run. It offers remote access through the Google Home app, allowing family members to adjust the temperature from anywhere, enhancing convenience and comfort.

Installation is relatively straightforward, as it can operate without a C wire in many homes, but it's important to note that some systems may require it. The design is modern and sleek, making it a nice addition to most home decors. The backlit LCD display is easy to read, and the device is Energy Star certified, indicative of its energy-saving capabilities.

However, the Nest Thermostat does come with some limitations. While it excels in smart home integration, it may not be compatible with all HVAC systems, particularly some heat pumps and controlled zones, which could hinder usability for certain users. Additionally, it lacks a lock feature, possibly raising concerns for those wanting to restrict access to the thermostat settings. Another aspect to consider is the reliance on batteries; while they are included, users may find the need to replace them occasionally inconvenient.

The Google Nest Learning Thermostat (4th gen), paired with the Nest Temperature Sensor (2nd gen), is a smart thermostat designed to make home heating and cooling more energy-efficient and convenient. It works with most heating systems, including gas, electric, and heat pumps, and usually doesn’t require a C wire for installation, which can make setting it up easier in many homes. Its compatibility extends well to popular smart home platforms like Amazon Alexa, Google Assistant, Apple HomeKit, and Android, offering smooth voice and app control from anywhere.

The thermostat’s standout feature is its learning ability—it adapts to your schedule and even factors in outdoor temperature changes to optimize comfort and energy savings. With the included temperature sensor, you can manage different rooms’ temperatures, addressing hot or cold spots effectively. The large, bright, and stylish display with Dynamic Farsight lets you see information clearly from across the room, adding both function and modern design to your wall. Installation is user-friendly, with clear instructions and helpful mounting parts included.

While it covers many 24V systems, some very old or unique HVAC setups might not be compatible. Although it offers energy-saving notifications and estimates, detailed energy reports within the app are not provided. For those seeking a smart thermostat that learns your habits, integrates easily with your smart home, and looks great on the wall, the Nest Learning Thermostat is a strong choice, particularly for reducing energy bills without complicated setup.