Newegg offers the Honeywell Wi-Fi Smart Thermostat, model no. RTH9580WF, for $174.99. Coupon code "EMCEFGF64" drops it to $159.99. With free shipping, that's $6 under our mention from last week and the lowest total price we've seen. (It's also the best deal now by $15.) This thermostat can be controlled via your iPhone, iPad, Android device, or computer.