A610 Universal Waterproof Float Case vs 4ft USB-A to Lightning Data Cable: which is safer?

Where these two actually differ

• We flag TPE material degradation, Microplastic shedding and PFAS in waterproofing coatings on the Spigen and not on the Tech21.
• We flag Microplastic shedding from TPR jacket degradation and Copper leaching from exposed core on the Tech21 and not on the Spigen.
• The Spigen is TPE (thermoplastic elastomer) with waterproof sealing where the Tech21 is Thermoplastic rubber (TPR) overmold, copper core, 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 Spigen grade, at 42% confidence against 72%, because it discloses less.