Check out the LG Dual Inverter air conditioner if you’re looking for a quiet and efficient window unit. But its smartphone app needs work. One of the benefits of a smart thermostat is that you can control it remotely and connect it with other smart home devices, such as Alexa and Google Home. But what if you don’t have a central air system but instead have to use window air conditioners to keep your place cool? LG’s SmartThinQ Dual Inverter air conditioner ($469) has built-in Wi-Fi, so you can control it from your phone and with Alexa and Google Assistant. It’s also more efficient and quieter than other air conditioners, but it’s not as smart as it should be. LG’s dual-inverter window air conditioner is a much sleeker-looking unit than most window AC units. Rather than having a bunch of slats in the front, the face of the unit is a solid white piece of plastic. (It sucks in air from underneath.) I tested LG’s smallest version of this model, but it still weighed in at a good 98 pounds. Lifting this thing into the window is definitely a two-person job. In all, it took about an hour to get it in my window. The directions are straightforward...