How do I install and set up the Honeywell T6 Pro Smart Thermostat?

To connect your T6 Pro thermostat to WiFi, make sure your smartphone or tablet is connected to a 2.4 GHz WiFi signal. Download the Resideo App from the App Store or Google Play, then open it and log in to your account (or create one if needed). Tap 'Add Device' and follow the prompts in the app to complete the setup process. The thermostat will then automatically set the time and date and receive over-the-air firmware updates when connected to WiFi.