The 3rd Generation Nest Learning Thermostat features a thinner, sleeker design and a bigger, sharper display. The Nest Learning Thermostats is more beautiful than ever, and independent studies have proven that the Nest saved consumers an average of 10-12% on heating bills and 15% on cooling bills. That means it can pay for itself in less than two years. Customized compatibility System Match activates features that work with your specific heating and cooling systems, and connects to most 24-volt forced-air, heat pump with AUX, dual fuel and radiant systems. Connects to your existing home network Convenient Wi-Fi capabilities offer a secure and reliable connection. Control the temperature from anywhere Download the free app from iTunes or GooglePlay and adjust your thermostat from your smartphone, tablet or laptop, even when you're miles away. Stay apprised of the temperature or the time Farsight illuminates the thermostat's display when it spots you across the room. Alerts and reminders provide peace of mind Monitors your equipment, sends service reminders and tells you if anything is not working correctly. You can also be alerted if your home's temperature gets dangerously hot or cold. Accommodates your schedule and temperature preferences Within a week the Nest thermostat starts programming itself to the temperatures you like. Away mode automatically switches to an energy-efficient temperature when you're not home. Dynamic sensor capabilities Different features follow your activity, manage humidity, and keep an eye on the weather to provide a custom climate for your home. Review your energy history and report Track how much energy you've used and follow tips that will help you conserve. Make an energy-saving temperature adjustment and the Nest Leaf will notify you immediately.