Smart thermostats: Typically packed with features like Wi-Fi capability, geo-fencing, zoning, occupancy detectors, remote sensors and more, smart thermostat units range in cost from $100 to $200.

If you're building up your smart home setup, introducing door sensors can be great for security, but they can bring a lot more utility around the house, too.

Smart thermostats look pretty, but that's far from all they do. If you're thinking about switching to a smart thermostat that includes an app and other tech, you deserve to know what the big ...

Remote Sensors - Remote sensors are great for controlling temps when you have specific hot and cold spots in an apartment or a lot of rooms in a home.

The best smart thermostats we've tested can control your home's heating and cooling with your phone or voice—and might help you save on energy costs.

Smart thermostats may cost more upfront—they’re the most advanced thermostat you can buy and typically also the most expensive—but the capabilities they offer generally save energy and money ...

Extras: While all smart thermostats have wireless controls and some sort of display, the best of them include extra features like remote sensors or built-in speakers.

Both also monitor your HVAC system for problems. The Nest Learning Thermostat is compatible with Nest’s remote temperature sensors, which can help even out the temperature in a large home.

Nest’s new flagship thermostat has a sleek new look and promises to help you save money on heating and cooling by adapting to outdoor temperatures and air quality.

A smart thermostat is a great way to save money on your energy bill. Our tech and home editors put a bunch of models to the test to find these best thermostats.

The best smart thermostats we've tested can control your home's heating and cooling with your phone or voice—and might help you save on energy costs.