Smart plugs are also great for outdoor use, and the Cync Outdoor Smart Plug ($19) is made for the outdoors and has two plugs built into it. While you're at it, be sure to check out our other smart-home buying guides, including Best Smart Bulbs, Best Security Cameras, Best Smart Speakers, and Best Smart Displays. A smart plug is a great fit for a device that has a simple on-and-off switch you can leave on, and let the smart plug take over the on-and-off part. Works with Apple Home, Amazon Alexa, Google Assistant, and Matter Courtesy of Cync Cync Outdoor Smart Plug $19 Home Depot If you need a smart plug made to withstand the elements, we like this one from Cync. Alexa Smart Plug for $25: Look, any Matter-compatible plug (like the one we recommend above) is just as easy to add to your Alexa as Amazon’s own Smart Plug.