Ecobee Unveils HomeKit-Enabled Smart Thermostat Essential for $130 Smart home accessory maker Ecobee has announced the Smart Thermostat Essential, a more affordable alternative to the Smart Thermostat Premium and Enhanced models in its lineup. Priced at $129.99, the Smart Thermostat Essential includes a full-colour touchscreen, and features Ecobee’s standard scheduling and comfort settings that adapt to househ…