You have to be very careful to not get any salt water into the battery/card area. The terminals corrode and/or get coated. The terminals that contact the battery and the card are easily bent and cleaning them without breaking them is difficult. All this depends on maintaining the o-rings so nothing leaks in. So the real answer is both cameras work fine but if you use either in salt water you have to be super careful.
PFD's (Life Jackets)
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