Home Slickdeals ecobee4 Wi-Fi Thermostat with Room Sensor and Built-In Alexa Voice Service $164.99 Slickdeals ecobee4 Wi-Fi Thermostat with Room Sensor and Built-In Alexa Voice Service $164.99 By ARCOM - 22 December 2018 154 0 SHARE Facebook Twitter Go to the deal page: ecobee4 Wi-Fi Thermostat with Room Sensor and Built-In Alexa Voice Service $164.99