The Nest Thermostat is only $90 as part of Google's Black Friday deals

Google's Nest Thermostat is on sale for just $90 for Black Friday, with a tidy $40 discount. That's among the lowest prices we've seen, and close to the lowest it has gone for so far. Like most smart home devices, the Nest Thermostat grants control via smartphone, tablet, laptop or even a smart display like Amazon's Echo Show or Google's Nest Hub (both of which are seeing significant Black Friday deals). Since it's programmable and capable of knowing when you're home, the thermostat can save energy by not overly heating or cooling an empty house. Google designed it to be easy to install, and most people can do it themselves.