I'm getting 8mm outer diameter, 4.7mm inner
Oh man, thank you thank you thank you bigtime!!
I know it’s new toy OCD, but does anyone else have a unit with a wobbly button that doesn’t want to sit flush? Not the biggest deal, but seems like my thumb is always brushing against the edge of the button.
Not sure if this will help, your second post about one side being harder to press than the other, that part didn't happen with mine. But just in case, my thumb was always brushing up against the edges of the button and kind of getting "caught" on the sharp edges. So I lightly sanded the circumference of the button and all is good in the world. Sadly, probably not what you're talking about though.
Edit - sorry, didn't even realize I double posted.