Ecobee Smart Thermostat Premium vs Sensi Touch smart thermostat

The Ecobee Smart Thermostat Premium is the stronger overall choice, with a lower price, more sensors and alerts, dual-band Wi-Fi, air-quality monitoring and a built-in speaker. The Sensi Touch smart thermostat is a well-rated, DIY-friendly touchscreen alternative with Apple Home support.

Sensor and alert depth. The Ecobee Smart Thermostat Premium adds TVOC/CO2 sensing, air-quality/fire/intrusion alerts, a speaker and a bundled sensor, while the Sensi Touch smart thermostat is a simpler, cheaper touchscreen with temperature and humidity sensing only.

The Ecobee Smart Thermostat Premium, which adds TVOC and CO2 sensing with air-quality alerts. The Sensi Touch smart thermostat includes temperature and humidity sensing but no air-quality monitoring.

It is the more affordable option and a highly rated, easy DIY install, and it supports Apple Home along with Google Home and Alexa. But the Sensi Touch smart thermostat lacks the extra sensors, alerts, dual-band Wi-Fi and speaker of the Ecobee Smart Thermostat Premium.

Buyers who want the most complete unit: air-quality and CO2 sensing, a full alert suite, built-in voice and speaker, an included sensor and trim plate, and dual-band Wi-Fi.

Budget-conscious buyers who want a highly rated, easy-to-install 4.3-inch touchscreen with Apple Home and voice control, and who do not need air-quality sensing or the broader alert suite.