Maybe you will need to wear gloves when you are lifting weights to try and keep the damage to the ring at a minimum. Of course then you will be "that guy" looking like a gym bro wearing gloves. I think my biggest fear with something like this is that I wouldn't be able to get it off when it is time to charge it. There are certain times of day or when the weather is a certain way that I'm not able to get my wedding ring off. Which why would I take it off anyway, but you know what I mean.
I hae fit it slightly larger than my wedding ring, as it has to come off more often, plus I have big knuckles. It doesn't have to be super tight and the testing kit was good to wear a couple sized for several hours each to see which was better. You could wear for a couple days and test.
That is cool. It sounds like they thought of all the things I would be worried about.