If you need to upgrade or replace an older Ecobee3 Lite, the best direct replacement is the current flagship Ecobee Smart Thermostat Premium, which adds a gorgeous metal body, built-in air quality monitoring, and an included SmartSensor. Alternatively, the Ecobee Smart Thermostat Enhanced or the budget-friendly Ecobee Smart Thermostat Essential serve as fantastic direct swaps that utilize the same backing wall mount layout for easy installation.
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