I am not one for cell phones. I am older so I only use a cell phone for emergencies. However, recently I got myself a smart thermostat and in order to really utilize the smart thermostat I need to learn how to really use my cell phone. Because with the smart thermostat comes an app which more or less controls it all and makes all the benefits that are worth it for having a smart thermostat. I have my kid helping me on how to use the cell phone as well as the app that came with the smart thermostat. I am not totally sure of everything yet and I have been doing my best to learn, but I am getting there. Smart thermostats are the thermostat of today. Many call them the king thermostat of all thermostats! And this is why I ended up finally buying one for my central heating and air conditioning system unit. The smart thermostat so far has been very beneficial with what I have learned so far with the use of the cell phone as well as the app. Eventually I will get even more benefits out of this smart thermostat once I completely learn how to use the cell phone. I will then be able to turn off the smart thermostat when I am out of the house and then turn it back on when I am on my way home. It will be really wonderful. I am getting there in learning all of this modern heating and air conditioning technology, it is just gonna take me a little while longer to learn it all.