The Revolv Home Automation Hub ($299) allows you to control all of your smart devices from a single app. This includes thermostats, sensors, switches, speakers, lights, locks and much more. So if you’re away from home you can lock your doors or turn on the lights. Got a hot date, set the mood with a couple pushes of a button. The Revolv works on Wifi so it can be placed anywhere in your home and can be set to trigger devices; manually, based on time, by location or when a sensor is triggered.