What is the best smart thermostat for cold winters?

Best overall for cold winters: Ecobee Smart Thermostat Premium. It’s the safest pick for most cold-climate homes because it supports remote room sensors, works well for balancing uneven temperatures, and is a strong fit if you have a conventional furnace, heat pump, or multi-stage HVAC system—provided your wiring is compatible.

If your home uses a heat pump in a cold climate, also consider Google Nest Learning Thermostat because its adaptive scheduling and HVAC control features are popular, but verify auxiliary/emergency heat compatibility before buying. If you want the simplest budget-friendly option, Amazon Smart Thermostat is good value, but it’s less feature-rich and not the pick I’d choose for complex cold-weather setups.

Before buying any smart thermostat for winter use, confirm: your HVAC type, whether you have a C-wire, whether you use auxiliary/emergency heat, and whether you need room sensors for cold bedrooms or uneven floors.