The Nest Thermostat learns what temperature you like and builds a schedule around yours. Also, it will send you an alert when the temperatures are threatening to ruin your belongings and appliances.

Norm connects to the Wink app on your mobile device, and allows you to monitor or control the temperature from there.

Honeywell's Wi-Fi smart thermostat offers smart features, a customizable touchscreen, and simple setup, plus Wi-Fi remote access.

Zen Thermostat is compatible with leading connected home platforms so you can easily expand without needing to run a separate home automation system.