iRobot Roomba i4 EVO (4150) Wi-Fi Connected Robot Vacuum ($200, originally $383)
Whether you're home or away, this robot vacuum is equipped to get the job done. With convenient app control, you can start it up remotely or simply use your voice through its built-in Alexa capabilities. It sucks up dirt, dust, and even pollen with ease, leaving your floors spotless. And you can rest easy knowing that it has a cliff-detection feature to keep it from falling down the stairs.