Does anyone know if the keycard "normally" survives diving.
I know the keycard "normally" survives water. I doubt it tolerates much bending. However, I don't know how it reacts to pressure.
Personally, when kayaking (White Water, Surfing, Rolling Practice), I wear the ring, carry a key card with me, have pin to drive set, and leave the phone in the car either off, or locked with Bluetooth off. I don't protect either the ring or the card from the water. However, I have not taken the ring or a keycard diving yet.