Hey, even those of us who don't own a home we can put nails in still want to make sure everything's going OK. Enter the Canary. Like many devices, it captures live video of your home from its wide-angle lens. But unlike most others, there are no wall-damaging sensors to install. You simply place the 6-inch by 3-inch cylinder in a central spot and connect it to Wi-fi. The app lets you place the Canary in “privacy mode” (cameras off) when you get home, and choose a trusted backup to receive alerts when you're not reachable.