Microsoft Store offers the Schneider Wiser Air WiFi Thermostat in White, model no. WISERAIR10, for $155 with free shipping. That's $4 below our mention from September and the lowest total price we've seen. (It's also the best deal we could find now by $12, although most merchants charge at least $202.) It features touchscreen control, built-in WiFi, and the ability to monitor and/or adjust your home temperature via your smartphone, tablet, or laptop.

Of note, you can instead add two to your cart for $286.80 with free shipping. That yields a price of $143.40 per unit.