I can tell you that the other week I lost our cell phone somewhere in our house, and it was simply misplaced plus not stolen, then but as a result of not being able to find our phone I could not control our smart temperature control; Which in turn this meant I could not control our central heating plus a/c component unless I was to walk over to the smart temperature control plus use it as a proper digital temperature control.
Which this is exactly what I had to do for a whole day plus evening because our phone was lost.
Finally I found it the next afternoon in the most different locale. I left it in the closet somehow when I went to hang up our coat the day before! That was a real mess up on our part. Because I should have been more careful knowing how important our cell phone was because it controlled our central heating plus a/c through the smart temperature control. I will make sure to never do such a thing again. I am going to be way more careful with where I put our cell phone plus make sure I never misplace it again. Because then if I do not have our cell phone, it defeats the whole point of having a smart temperature control! That app on the cell phone is a entirely important thing to get the best out of the smart temperature control without a question of a doubt. I will for sure be way more careful the next time.