Ecobee's Smart Thermostat Premium is brilliant at savings and comfort, allowing you to optimize your energy use through superior intelligence and technology. Included SmartSensor eliminates hot and cold spots and adjusts the temperature in the rooms that matter most. A built-in air quality monitor, smoke alarm detection, and geofencing technology to understand occupancy are just a few of the features that make saving energy just the beginning. Works with Siri*, Amazon Alexa, Google Assistant, Apple HomeKit, SmartThings, and IFTT. ENERGY STAR® certified Save up to 26%* per year on heating and cooling costs. Included SmartSensor ($50 value) adjusts the temperature in the rooms that matter most to reduce hot or cold spots to keep you comfortable. *Compared to a hold of 72°F. Transforming the thermostat for home health. Built-in air quality monitor alerts you to poor air quality, provides tips on how to improve it, and reminds you when it’s time to change your furnace’s air filter. See for yourself what premium feels like. Premium materials and advanced engineering mean a large, vibrant display with a cinematic interface, a timeless design, and next level occupancy sensing. Complete home monitoring hub A complete home monitoring hub that includes built-in smoke alarm detection and alerts to possible break-ins when your system is armed. Siri or Alexa Comes with a smart speaker and your choice of Siri* or Alexa Built-in. *Apple home hub required to enable Siri on Smart Thermostat Premium