I am a Home Inspector that works in the home inspection industry for Real Estate transactions. I am sending a link to ecobee4 t stats with Alexa you can get from Mass Save for $50 each with a qualifying Utility provider. You need to register to get the instant rebate, I just purchased two ecobee4 with Alexa T-stats for $98, normally $249 each. This is the best deal for Smart thermostats I have ever seen.
https://www.energyfederation.org/masssave/thermostats/wireless-enabled.html?mkt_tok=eyJpIjoiWm1FMU16WTBOVEE0TVdJeiIsInQiOiJaZmQzb2tHODkzaVlMWUViMEYrbFFUUG9uQnVcL0MwWEdmNG1jSWtiTU01ZzZmQldyRmpOUVVQOW1CekF5YlJuNWVDVnd6VWIyNEZQdVhEQmlxclBpSDZ1U3Q4TVRtc1lzOHFEUkx6THpjazZHZ0l4SFVieWxjT2JNUEdMM2wyME0ifQ%3D%3D