Smart home gadgets let you do things such as turn your lights on using your smartphone, stream music to a speaker using Alexa, lock your doors remotely, clean your house, and much more. But smart home gadgets are about more than just convenience. These devices can also help you save on heating and energy costs, let you know if someone's trying to break in, or if there's some other emergency. While still in its infancy, the number of smart home products—from Amazon to Xiaomi—is rapidly growing. We've tested dozens of smart home devices, from cameras to lightbulbs to thermostats—even robot vacuums —to find the best of each for your new smart home. Here are some of our favorites \cite{prospero2019}: