Nest Learning Thermostat
The Nest wi-fi thermostat is created by Tony Fadell, who worked at Apple on the first 18 generations of the iPod and the first three of the iPhone, and the not surprisingly the design of the thermostat is one of the most striking features. The Nest functions very similarly to the Ecobee wi-fi thermostats, but has some features not seen on Ecobee. The one that stands out the most (may not always be practical) is the activity sensor that works with the Auto-away feature.