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10 Best Thermostat Controlled By Phone 2025 in the United States

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Our Top Picks

#1

Winner

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

Rating
9.8
Chosen by1,147
Compatibility
Connectivity
User Interface

Most important from
25416 reviews

Compatibility
Controlling the thermostat via voice commands through Alexa or the Alexa app is incredibly convenient, particularly when you're not at home.
Connectivity
Despite the overall positive experience, some users have encountered issues with the thermostat failing to reconnect to the network after a power loss.
User Interface
The user interface is simple and allows for easy scheduling of temperature settings, which can be copied across different days for added convenience.
Energy Reports
Energy-saving features are a great addition, with the app providing detailed energy usage reports and the ability to set up filter replacements automatically.
Installation
The thermostat is easy to install, especially with the detailed guidance provided in the app, but make sure to check if you need a C-wire or a 24-volt transformer for your setup.

The Amazon Smart Thermostat is designed to help users transition from traditional thermostats to a more energy-efficient solution. One of its main strengths is its compatibility with Alexa and Ring, allowing for easy control via voice commands or the Alexa app. It also features temperature sensors that can address hot or cold spots using compatible Echo devices, enhancing comfort throughout your home. Energy savings are a notable highlight, with the potential to reduce bills by about $50 annually due to its ENERGY STAR certification.

Installation is fairly user-friendly, guided by the Alexa app, although it requires a C-wire, which might not be available in every home. If your home lacks this wiring, you’ll need to purchase a power adapter separately. The thermostat has a pleasant ability to learn your habits through 'Hunches,' adjusting temperatures automatically based on your activity and schedules.

There are a few drawbacks. It only supports 2.4 GHz networks and lacks built-in far-field microphones for voice control, meaning you’ll need an Echo device for that feature. Additionally, while it provides a range of app-based features such as energy reports and geofencing, it may not be as intuitive for users unfamiliar with smart home technology. This thermostat is a great fit for tech-savvy homeowners looking to save on energy bills and control their home environment remotely. However, those less comfortable with technology or lacking the necessary wiring might find it more challenging to set up and operate effectively.

Rating
9.8
Chosen by1,147
Compatibility
Connectivity
User Interface

Most important from
25416 reviews

Compatibility
Controlling the thermostat via voice commands through Alexa or the Alexa app is incredibly convenient, particularly when you're not at home.
Connectivity
Despite the overall positive experience, some users have encountered issues with the thermostat failing to reconnect to the network after a power loss.
User Interface
The user interface is simple and allows for easy scheduling of temperature settings, which can be copied across different days for added convenience.
Energy Reports
Energy-saving features are a great addition, with the app providing detailed energy usage reports and the ability to set up filter replacements automatically.
Installation
The thermostat is easy to install, especially with the detailed guidance provided in the app, but make sure to check if you need a C-wire or a 24-volt transformer for your setup.
#2

Google Nest Learning Thermostat - 3rd Gen (2015) - Programmable Smart Thermostat for Home - Works with Alexa - Stainless Steel

Rating
9.6
Compatibility
Connectivity
Learning Capabilities

Most important from
39117 reviews

Compatibility
Nest's compatibility checker made it easy to ensure it would work with my existing system.
Connectivity
The app makes it incredibly convenient to adjust the temperature remotely, especially when I'm not at home.
Learning Capabilities
The thermostat learns quickly and adjusts to my habits, making programming effortless.
Installation
Installation was the easiest of any thermostat I've ever performed, and it already knew my system once installed.

The Google Nest Learning Thermostat (3rd Gen) is a smart thermostat that truly shines in the realm of home automation. One of its standout features is its ability to learn from your habits. With Auto-Schedule, it automatically adjusts to your schedule, eliminating the need for manual programming. This makes it user-friendly, especially for those who may not be tech-savvy. Its compatibility with both Google Assistant and Amazon Alexa means you can control it using voice commands, adding an extra layer of convenience.

Connectivity options are robust, supporting both 2.4GHz and 5GHz Wi-Fi, which helps ensure a stable connection for remote control via the Nest app. The Home/Away Assist feature is a big plus, as it prevents energy waste by adjusting the temperature when you leave home. Energy reports provide valuable insights into usage patterns, helping you save money in the long run.

However, there are some considerations to keep in mind. Installation can be somewhat tricky for those who are not comfortable with DIY projects, though it is manageable with the right guidance. Additionally, while the learning capabilities are impressive, they may take some time to adapt to specific schedules, meaning that initially, it might not perform at its best. In terms of design, the stainless steel finish gives a modern look, but it may not blend well with all home decors. The requirement for a compatible heating and cooling system is also a limitation, so it's important to check compatibility before purchasing.

For anyone looking for an energy-efficient solution that can be managed from anywhere, the Google Nest Learning Thermostat is a solid choice. Just be prepared for a bit of a learning curve during installation and initial setup.

Rating
9.6
Compatibility
Connectivity
Learning Capabilities

Most important from
39117 reviews

Compatibility
Nest's compatibility checker made it easy to ensure it would work with my existing system.
Connectivity
The app makes it incredibly convenient to adjust the temperature remotely, especially when I'm not at home.
Learning Capabilities
The thermostat learns quickly and adjusts to my habits, making programming effortless.
Installation
Installation was the easiest of any thermostat I've ever performed, and it already knew my system once installed.
#3

New 2025 ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant

Rating
9.4
Compatibility
User Interface
Installation

Most important from
165 reviews

Compatibility
Compatibility with various HVAC systems is excellent, making it a versatile choice.
User Interface
Aesthetically pleasing with a nice interface, it fits well into any home decor.
Installation
It's easy to install and operate, both on the device and through the phone app.

The ecobee Smart Thermostat Essential is a versatile and energy-efficient choice for those looking to manage their home climate using their phone. It's compatible with 85% of HVAC systems and supports popular smart home ecosystems like Apple HomeKit, Google Assistant, and Amazon Alexa. This integration makes it convenient to control the temperature using voice commands or the ecobee app, which is highly rated by users. The thermostat also features a color touchscreen for easy on-device adjustments and regularly receives free software updates to enhance functionality over time.

Energy savings are a significant highlight, with the potential to reduce heating and cooling costs by up to 23% annually, translating to about $250 in savings each year. This means the investment in the device can pay off within six months. Additionally, the thermostat includes automatic scheduling and energy usage reports, which can help users optimize their comfort and efficiency. Installation is straightforward, even for homes without a C-Wire, thanks to the optional Power Extender Kit.

However, some accessories like the SmartSensor and trim kit are sold separately, which may add to the overall cost. The compact and minimalist design ensures it blends well with most home decors. On the downside, the initial cost might be a consideration for budget-conscious buyers, and while it doesn't require batteries, reliance on Wi-Fi connectivity means that its smart features are dependent on a stable internet connection. In conclusion, the ecobee Smart Thermostat Essential is ideal for those who want a user-friendly, phone-controlled thermostat that offers significant energy savings and seamless integration with various smart home platforms.

Rating
9.4
Compatibility
User Interface
Installation

Most important from
165 reviews

Compatibility
Compatibility with various HVAC systems is excellent, making it a versatile choice.
User Interface
Aesthetically pleasing with a nice interface, it fits well into any home decor.
Installation
It's easy to install and operate, both on the device and through the phone app.

Buying Guide for the Best Thermostat Controlled By Phone

Choosing a thermostat controlled by your phone can greatly enhance your comfort and energy efficiency at home. These smart thermostats allow you to adjust the temperature remotely, set schedules, and even learn your preferences over time. To find the best thermostat for your needs, consider the following key specifications and how they align with your lifestyle and home setup.
CompatibilityCompatibility refers to whether the thermostat will work with your existing heating and cooling system. This is crucial because not all thermostats are compatible with all HVAC systems. To navigate this, check the specifications of your current system (e.g., gas, electric, oil, heat pump) and ensure the thermostat supports it. If you have a more complex system, like multi-stage heating or cooling, make sure the thermostat can handle that as well. Choose a thermostat that matches your system to avoid installation issues and ensure optimal performance.
ConnectivityConnectivity refers to how the thermostat connects to your phone and other smart devices. This is important because it determines how easily you can control the thermostat remotely. Most smart thermostats use Wi-Fi, but some may also support Bluetooth or other wireless protocols. Look for a thermostat with strong and reliable Wi-Fi connectivity to ensure you can control it from anywhere. If you have a smart home ecosystem (like Google Home, Amazon Alexa, or Apple HomeKit), make sure the thermostat is compatible with it for seamless integration.
User InterfaceThe user interface is how you interact with the thermostat, both on the device itself and through the app on your phone. A good user interface is important for ease of use and convenience. Thermostats with touchscreens and intuitive apps are generally easier to navigate. Consider how tech-savvy you are and whether you prefer a simple, straightforward interface or one with more advanced features and customization options. Choose a thermostat with a user interface that you find easy to use and understand.
Learning CapabilitiesLearning capabilities refer to the thermostat's ability to learn your schedule and preferences over time and adjust the temperature automatically. This feature is important for maximizing comfort and energy savings without constant manual adjustments. Some thermostats can learn your habits within a week and start making adjustments on their own. If you have a predictable routine, a learning thermostat can be very convenient. If your schedule is more irregular, you might prefer a thermostat with more manual control options.
Energy ReportsEnergy reports provide insights into your energy usage and can help you identify ways to save on your utility bills. This feature is important for those who are conscious about energy consumption and want to optimize their heating and cooling. Look for thermostats that offer detailed energy reports and tips for improving efficiency. If you are keen on monitoring and reducing your energy usage, choose a thermostat that provides comprehensive and easy-to-understand energy reports.
GeofencingGeofencing uses your phone's location to determine when you are home or away and adjusts the temperature accordingly. This feature is important for ensuring your home is comfortable when you arrive and saving energy when you are away. Thermostats with geofencing can automatically switch to energy-saving modes when you leave and start heating or cooling before you return. If you have a consistent routine and often forget to adjust the thermostat, geofencing can be very useful. If you prefer more manual control, this feature might be less important.
InstallationInstallation refers to how easy it is to set up the thermostat in your home. This is important because a complicated installation process can be frustrating and may require professional help. Some thermostats are designed for easy DIY installation with clear instructions and online support, while others might be more complex. Consider your comfort level with DIY projects and whether you are willing to hire a professional if needed. Choose a thermostat with an installation process that matches your skills and preferences.

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