The labs feature mentioned in my post immediately above is now available for everyone:
If your needs more closely align with the original request at the top of this thread to monitor an individual device’s health status, then the examples already provided further up in the thread are best suited for you.
But if you are looking for a daily report of the health and/or battery status of all the devices connected to SmartThings, as a few people mentioned later in the thread, then the new Health and Battery Reports linked above would be a good fit for you. 