Difference between sweat resistant and sweatproof of the AirPods Pro is not clear to me.
In this article https://support.apple.com/en-us/HT210711 a distinction is made between sweat resistance and sweatproof. It is stated that the AirPods Pro are sweat resistant but not sweatproof. From reading the article (including the notes) it is not clear to me what the difference is. Still no idea if it is save to use the AirPods Pro when you sweat heavy during runs of (say) 2 hours. (And I mean very heavy)
as a side note: I have a terrible history with so called “sport” buds. Apple exchanged my Powerbeats 3 maybe 5 times because they continually died on me. Same history with the Bluetooth “sport” buds of Urbanears. I know the Powerbeats 3 don’t have a IPX rating, but the fact that almost every pair died almost directly after 2 or 3 workouts makes me think that I sweat extremely much. (And I do)