The Cielo is a cutting-edge smart thermostat with a sleek, modern design. The auto-adjust feature adjusts the temperature based on your preferences when you’re home and away, and the presets allow you to set temperatures for certain times. There’s also a location-based app trigger that adjusts temps based on when you’re on your way home, and it has a vacation mode for when you’re away. It’s compatible with most HVAC systems, comes with a three-year limited warranty, and has 4.5/5 stars on Amazon. It’s easy to install and is on sale for $149.99 right now (reg. $169), though prices can change at any time.