Woot! has the Ecobee4 WiFi Smart Thermostat w/ Sensor & Built-In Alexa for a low $179.99. Free Shipping for Amazon Prime members, otherwise $6 Shipping. This normally retails for $249, so you save about 28% off. Plus your local energy utility may offer rebates to drop the cost further on a smart thermostat.
We own the Ecobee ourselves and highly recommend it. What sets the Ecobee apart from other smart thermostats is the included wireless remote sensor. The Ecobee is able to track and adjust the temperature based on one or more rooms, which is useful for rooms like a nursery, bedrooms, hot attics and more.
Over 1,600 reviews on Amazon witha 4/5 star rating
Includes 1 wireless remote sensor (expandable to 32)
Control your thermostat using your voice with built-in Alexa
Occupancy sensor, temperature scheduling, and smartphone app
Works with Amazon Alexa Voice Control, Apple HomeKit, Google Assistant