When I moved into my new home, it had the Honeywell system already installed, so I didn’t shop around too much; I was pleasantly surprised it had both Alexa and HomePod integrations.
Early on, I had to replace one of them; I got another one just the same.
The one issue I have is that I can't have them turn off or on via the integrations. There is no problem turning them on or off from the Alexa or HomePod apps, the system can't be scheduled to turn off even for when everyone is out.
I am so happy I purchased the Honeywell T6 WiFi thermostat. Using the app and setting up the Geofence feature is a wonderful feature allowing automatic energy savings.
I had the thermostat installed in my vacation home so that I could adjust the temperature before I arrive. Unfortunately the app went black before I could use it for the first time 🙁. Now I have an IT problem when I go back to my vacation home.
Once you download the Resideo app to your phone, you can alter the 4 time periods per day to fit your schedule for your heating or AC needs. The app is very easy to use and if you have Wifi, you can change the settings from anywhere. If your power company has on and off-peak hours, you can adjust and use the away time slot to reduce your usage during on-peak hours.