Izzy, I figure about the best we can expect from a button compass is to get a general sense of direction.

Wow, clearwater, I'd expect a button compass to last longer than a few months, looks like I have some gear testing to do asap

ireckon, are those compasses like the ones in the PSP? they sure look like it, although they also look like a lot of the ones I bought on the cheap in bulk and had shipped here from China, I'm sure the ones I bought imitated the look of these better compasses on purpose