The ecobee3, from ecobee, is the first thermostat that supports Apple HomeKit, is now available at retail. The thermostat is available at all Apple Stores, at an MSRP of $249.
"We’re excited for Apple customers to get their hands on the first smart thermostat that supports HomeKit,” Stuart Lombard, president and CEO of ecobee, said as part of the announcement. . “The new ecobee3 plays an integral role in the connected and energy-efficient home by allowing users to remotely control temperature in the rooms that matter most with simple commands using Siri."
See the ecobee page for more.