For 2026, the best smart thermostat for most people is the , praised for its multi-room comfort, built-in air quality monitoring, and extensive smart home compatibility. If you prefer a "set it and forget it" approach, the Google Nest Learning Thermostat (4th Gen) remains the leader in AI-powered automated scheduling. Top Recommendations for 2026 The Best Smart Thermostats We've Tested for 2026 | PCMag