Question 1

Which is better, Ecobee Smart Thermostat Premium (Multi-Zone) or Honeywell Home T9 Smart Thermostat?

Accepted Answer

Based on our testing, the Ecobee Smart Thermostat Premium (Multi-Zone) scores higher overall at 9/10. The Ecobee Smart Thermostat Premium (Multi-Zone) scored 9/10 and the Honeywell Home T9 Smart Thermostat scored 8.8/10 in our Best Thermostats for Multi-Zone Systems 2026 evaluation.

Question 2

Is the Ecobee Smart Thermostat Premium (Multi-Zone) worth it over the Honeywell Home T9 Smart Thermostat?

Accepted Answer

The Ecobee Smart Thermostat Premium (Multi-Zone) scores 9/10 while the Honeywell Home T9 Smart Thermostat scores 8.8/10. The Ecobee Smart Thermostat Premium (Multi-Zone) is our "Best Overall" pick in the Best Thermostats for Multi-Zone Systems 2026 category.

Ecobee Smart Thermostat Premium (Multi-Zone) vs Honeywell Home T9 Smart Thermostat: Which to Buy?