Amazon offers the second-generation Samsung SmartThings Hub for $79.99 with free shipping. (World Wide Stereo charges the same.) That's the lowest price we could find by $12, although we saw it for $16 less last October. 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.