A610 Universal Waterproof Float Case vs 2.1A USB Charge Cord Car And Wall Charger Set. Cord 6.5 Ft Long: 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 Plastic insulation degradation under heat and Connector corrosion and oxidation on the Tech21 and not on the Spigen.
• The Spigen is TPE (thermoplastic elastomer) with waterproof sealing where the Tech21 is Plastic (USB connector and housing), copper wire (internal conductors), 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.