To be considered smart, an air conditioner needs to have a Wi-Fi radio so it can connect to an app that allows remote control and monitoring. No matter where you are, smart air conditioners let you do things like adjust the target temperature, change the fan speed, and turn them on and off. Many also let you set a cooling schedule, so they will kick on at a designated time. And some support Alexa, Google Assistant, and Siri voice commands.  Advanced models even offer energy usage reports and can use your phone's location services to cool down rooms before you arrive. That way, you’re not wasting energy—and money—cooling an empty room when you aren't there.