Ecobee’s Ecobee3 Lite Wi-Fi smart thermostat integrates with Amazon Alexa, Apple HomeKit, Samsung SmartThings and IFTTT. The device, which features a touchscreen, is hardwired, eliminating reliance upon battery power. Consumers can also pair the device with additional sensors to measure the temperature and occupancy of a specific room and adjust accordingly. So, if the Ecobee3 senses that no one is home, for example, it will adjust the temperature to save energy. The thermostat is currently available at a $169 suggested retail.