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Designed to react to people's actual behavior and not algorithms, the Eversense adjusts a home's heating or cooling based on when the last person leaves and the first person comes home.

Updated:Caption:Photo:Colin West McDonald/CNET
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Eversense.

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Eversense.

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Eversense.

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Eversense.

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Eversense works on iOS and Android.

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Asked why someone would choose the Eversense over Nest, Eversense points out that while Nest is meant to adjust to people's regular patterns, life isn't actually all that regular.

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The Eversense is $349.

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The system is designed to turn off heat or air conditioning when the last person in a household has left for the day -- as determined by the last mobile phone leaving -- and so that the first person to come home returns to "an ideal environment."

Updated:Caption:Photo:Colin West McDonald/CNET
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