Ecobee’s Smart Thermostat Premium refines the core idea of home climate control. It moves beyond simple temperature scheduling to actively manage your home’s environment. The built-in air quality monitor and included SmartSensor 2-pack are the key differentiators, shifting the focus from just your hallway’s temperature to the actual comfort and health of your living spaces.

The thermostat itself learns your schedule and can save up to 26% on energy bills. Its real intelligence comes from the sensors. You place the compact SmartSensors in your most-used rooms, like the bedroom or home office. The system then prioritizes comfort in those occupied spaces, eliminating hot or cold spots instead of just reacting to the thermostat’s location. The air quality monitor provides a clear, at-a-glance readout for humidity, volatile organic compounds, and particulate matter, giving you data to act on.

Voice control is handled directly through the built-in speaker and mic with Siri or Alexa, so you don’t need a separate smart speaker in the room. It’s a cohesive system. The upfront cost is higher than a basic smart thermostat, but you’re paying for a comprehensive environmental dashboard that does more than just adjust the furnace.