Ecobee Smart Thermostat Premium vs Nest Learning Thermostat (4th gen)

The Ecobee Smart Thermostat Premium wins overall, with a lower price, a higher owner rating, a three-year warranty, more sensors and alerts, and built-in voice and speaker. The Nest Learning Thermostat (4th gen) leads on self-learning scheduling, Matter and a System Health Monitor.

Air-quality sensing and voice versus learning and diagnostics. The Ecobee Smart Thermostat Premium adds TVOC/CO2 sensing, more alerts and built-in voice, while the Nest Learning Thermostat (4th gen) adds automatic learning, Matter and a System Health Monitor.

The Ecobee Smart Thermostat Premium. It includes TVOC and CO2 sensing and air-quality alerts, which the Nest Learning Thermostat (4th gen) does not offer. Both include a bundled temperature sensor for room balancing.

It builds its own schedule by learning your routine, supports the Matter standard, and adds a System Health Monitor that can flag HVAC issues early, none of which the Ecobee Smart Thermostat Premium lists.

Buyers who want the more affordable premium unit with the deepest sensing (including air quality), the widest alert set, built-in voice and speaker, and a three-year warranty.

Buyers who prioritize a genuinely self-learning schedule, a bright animated display, Matter support and HVAC health monitoring, and who are settled in the Google ecosystem.