Save up to 23 annually on heating and cooling costs compared to a hold of 72F. Control from anywhere using your Android or iOS device. Add SmartSensor to manage hot or cold spots and deliver enhanced comfort to the rooms that matter most. Automatically pauses your heating or cooling when a door or window is left open requires ecobee SmartSensor for doors and windows and a Smart Security subscription. Integrates seamlessly with your preferred smart home system.