I did quite a bit of research on these and decided on the Ecobee. I chose it because for the p 1rice it did everything the Nost did. | went with the one at Costco lmulders the Ecohen 3 Lite, a room sensor and a window sensor. | did not think I needed the Ecobee 4,which has Alexa built in. | have Google Nest minis and the Ecobeer is compatible with Google Home and smart speakers.