Samsung offers the second-generation Samsung SmartThings Hub for $49.99 with free shipping. (Amazon charges the same.) That's tied with our mention from a month ago as the lowest price we've seen and the best deal we could find today by $20. The hub allows you to connect all of your smart locks, lights, outlets, and thermostats and control them with your smartphone via the free SmartThings app. It's compatible with iOS, Android, and Windows Phone.