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Our Top Choice

Nest Learning Thermostat - 2nd Generation

Pros: State-of-the-art design manufactured by a pioneer company in the industry. Combination of near effortless installation, easy-to-use features, and automatic energy-saving settings place it at the top of our list.

Cons: Though it comes at a high price, its money-saving energy efficient performance make it worth the investment.

Summary: Offers all of the bells and whistles and modern, energy-saving design that make it by far the best smart thermostat available.
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ecobee Smart Si Thermostat 2 Heat-2 Cool

Pros: Has a lot of intelligent features without a high price. Stands out for its Free Cooling function that saves energy in appropriate weather by making use of cooler outdoor air instead of kicking on the air conditioning.

Cons: Not as many state-of-the-art controls as the Nest, but offers a lot of features for an affordable price.

Summary: Gives you a lot of energy-saving comfort without spending a lot of money. The best deal money can buy.
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Honeywell Wi-Fi Smart Thermostat

Pros: Saves you money with its ability to calculate the time it takes to reach desired temperatures and adjust on and off function accordingly.

Cons: Unit doesn't have an on-board battery, which requires the installation of a C-wire for operation.

Summary: A good choice for users who don't need additional bells and whistles, and don't mind a thermostat that requires more manual operation.
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Venstar WIFI ColorTouch High Resolution Thermostat

Pros: Package of features that include auto-night dimmer, user-configurable themes and wallpaper images, and screen-saver mode that can be customized with photos make it as unique as it is reliable.

Cons: Some owners report that the customer support is limited. Its 1-year warranty doesn't provide much protection.

Summary: At only $44 higher cost, the Nest offers higher quality and value.