There’s now a slew of waterproof cases for smartphones, which have reached an Einstein-grade smartness, meaning they need serious protecting when in the hands of anglers, especially those of a boat fishing persuasion, who tend to be constantly on the edge of wetness throughout virtually an entire fishing session.

Many waterproof cases have lanyards to protect against accidental droppage into the aqueous elements; or to allow for lowering a phone overboard to record a fish as it’s brought to…