Best Buy offers the Nest Learning Thermostat E bundled with a Google Home Mini in Chalk for $139 with free shipping. That's a $10 drop from last week and the lowest price we've seen. (It's the best deal today by $31.) The thermostat features a 320x320 1.8" 24-bit color LCD, four sensors (temperature, humidity, proximity, and ambient light), 802.11n wireless, Bluetooth, and compatibility with most 24-volt heating and cooling systems.