USB-C to USB-C Cable 2-Pack vs Marine Waterproof Case for iPhone XS/X: which is safer?

Where these two actually differ

• We flag Copper conductor corrosion and oxidation, Thermal degradation of PVC jacket and Microplastic shedding from jacket wear on the Anker and not on the Pelican.
• We flag Polycarbonate degradation under UV and heat on the Pelican and not on the Anker.
• The Anker is PVC outer jacket, copper conductors, standard connectors where the Pelican is Polycarbonate/polypropylene, which is most of the difference in these two grades.
• These two are level, close enough that price and fit should decide it rather than our grade.
• We are less certain about the Pelican grade, at 45% confidence against 78%, because it discloses less.