Just found something out: the Ecobee display temperature is an average temperature of both the Ecobee main thermostat and the Ecobee remote sensor (when installed).
Ecobee displays temp on screen: 22C
Actual temps were:
Main stat: 24C
Remote stat: 20C
This was really confusing while I have been doing testing as I thought the display was the actual temperature there. You can turn off the average temp by going in sensor setting and going to the remote stat and turning off the participation settings (this is at least how I did it). Also in the sensor settings is where you can see the "actual" readings of each stat (not flair devices of course)
Also, FYI you can make a "temperature correction" to adjust the reading temp up or down to a "more accurate temperature". Settings, Installation Settings (advanced options), Thresholds, Temperature Correction.