Buy Ecobee3 -

lacks this built-in sensor, though it can still use occupancy data if you pair it with external SmartSensors.

: Both versions integrate seamlessly with Apple HomeKit , Amazon Alexa , and Google Assistant. Model Comparison & Pricing Ecobee3 Smart Thermostat Go to product viewer dialog for this item. Ecobee ecobee3 Lite Smart Thermostat Go to product viewer dialog for this item. Price (Approx.) Discontinued (used only) Price (Approx.) $140.99 - $164.99 Accessory Support Yes (Humidifiers, etc.) Accessory Support Built-in Occupancy Built-in Occupancy Remote Sensors Included (1) Remote Sensors Sold separately Features Walkthrough and Tour the ecobee3 Smart Thermostat

: Both models support these, allowing the thermostat to manage hot or cold spots in rooms other than where the unit is mounted. : The original

: This software feature intelligently adjusts your home’s temperature during times when electricity is cheaper and offers "Smart Home & Away" to save energy when you're out.