With stock varying by ZIP code, Home Depot offers the Ecobee Ecobee3 Lite 7-Day Programmable Smart Touchscreen Thermostat for $158.50. Plus, you can get the Ecobee Remote Sensor 2-Pack for free. (You'll need to add both items to cart.) Choose in-store pickup to avoid the express local delivery fee, which can add up to $79 for some locations. That's $76 under the lowest price we could find for these items sold separately elsewhere. It tracks occupancy (via the sensors), local weather, and your schedule to better control your home heating and cooling. It works with various home-automation systems or can be controlled via a smartphone.