10 Best Thermostat Controlled By Phone 2025 in the United States

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.

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.

The Honeywell Home RTH9600WF Smart Color Thermostat offers a range of features that make it a strong contender in the thermostat-controlled-by-phone category. It is ENERGY STAR certified, which helps save energy and track usage with personalized tips. The thermostat can be controlled from anywhere via an app, and it supports smart home integration with Amazon Alexa, Google Assistant, and Microsoft Cortana, among others. This makes it very convenient for those who prefer to manage their home’s climate remotely or through voice commands.

The customizable color touchscreen is a nice touch, allowing you to match the display to your home decor. Plus, the on-screen comfort information provides real-time indoor and outdoor temperatures and humidity levels, along with daily weather forecasts, adding to its utility. Installation may be a bit tricky since a C-wire is required, and it's not compatible with line voltage heating systems or heating-only oil furnace systems unless a C-wire is present. If your current system doesn't include a C-wire, you’ll need an adapter, which can be an additional expense and complication.

It's compatible with a variety of heating and cooling systems, but make sure to check compatibility with your setup before purchasing. The flexible programming options are great for those who want to set it and forget it while still reaping energy savings. Lastly, participating in local utility demand response programs can provide additional savings and rewards, making this thermostat not only smart but also economical.