We designed and tested the rings to take a lot of ESD beating, it's likely your skin will be damaged prior to the ring.
I lost my actual test results for this but it was basically a case of using one of those static generators and zapping it at different voltages.
The electronics of the ring are never exposed to titanium and our absorber layer acts as an insulator.
Basically you should be fine from ESD.
I'd be happy if someone wants to run some tests to see what environments of ESD the ring can tolerate, 5 free visual fail rings to whoever gets the best/most enlightening/well documented results :P
Do wool socks and carpet count as a proper test environment? ;)