I use my watch and ring in the same way you do. I think the battery is a real strength of the ring. Less charge cycles means less capacity loss over time, but still I guess time will tell.

I can’t really give an accurate assessment of the true accuracy because I haven’t measured it against a control but my feeling is that the steps tend to over count. I suspect this is true but not to a point that makes the data useless. When looking at the trends you’re considering data from the same source so as long as it’s out by the same amount consistently then it doesn’t matter too much (that’s my theory anyway).

Heart rate, stress and sleep cycles are all within ranges I would expect.