what size of phillips screwdriver for garmin heart rate belt

Have to change the battery on my HRM and the mini tools i have for glasses are still too big for the tiny screws. would a #00 phillips do or is it a #000…or am i better just taking it to the jewellers and getting them to do it? 😀

Yours must be very very different to both my Garmins (08 and ’10 straps). Both are undone with a 20p or preferable a 50p piece? Whats your model?

Are you asking this seriously ?
Perhaps visit a local hardware shop and try to find one that fits.

^ what he said, using common sense and STW doesn’t seem to mix does it?