The 8 Best Smart Thermostats of 2024

Tired of high energy costs? A smart thermostat can optimize your heating and cooling system to run more efficiently, so you’ll save money on your energy bills. Like other smart devices, you can adjust your thermostat from your phone or tablet or even with a voice-controlled digital assistant like Alexa. Even better? You can program a smart thermostat to cool or heat your home on your preferred schedule. In fact, the smartest thermostats will even “learn” your preferences to program themselves.

“Most smart thermostats are able to recognize when people are home or away, switching to an energy-saving mode when the house is empty and maintaining a comfortable climate when people are home,” says Audrey Monell, president of Forrest Anderson Plumbing and Air Conditioning.

Moreover, a well-programmed smart thermostat can help extend the lifespan of your rather expensive HVAC (heating, ventilation, and air conditioning) system. “With an optimized HVAC unit, homeowners are also able to reduce their carbon footprint and become more energy efficient,” says Monell.

After extensive research, we have gathered the best smart thermostat for every budget and preference—evaluating their programmability, motion-sensing abilities, smart home compatibility, and more. Regardless of your needs, we’ve got you covered. In addition to Monell, we also consulted Anthony Perera, founder and chief growth officer at Air Pros USA.

One thing to note—before you purchase our pick or any other smart thermostat on our list, you’ll need to ensure your current HVAC setup is ready. A common wire is often required to keep a continuous flow of power from your heating and cooling unit to your thermostat; stay safe and check with a professional electrician before fiddling with any wiring in your home.

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