Smart thermostats are programmable thermostats taken to the next level of connectivity and comfort. You can control these thermostats from your computer, tablet or phone which means you can adjust your home’s temperature remotely. Though they are the most expensive, these thermostats have the best comfort features and also save you money every month on your utility bills. Features include: Touch screen displays Work with Amazon’s Alexa or Google. Dirty air filter alerts Multiple programmable schedules (weekday, weekend, vacation, etc.) Schedule “learning” capabilities