USB-C to USB-C Cable 2-Pack vs Fre Series Waterproof MagSafe Case for iPhone 17: which is safer?
Anker USB-C to USB-C Cable 2-Pack is our pick, better on PFAS and on the overall hazard picture.
Our pick
Anker
USB-C to USB-C Cable 2-Pack
PFAS grade
Excellent 85/100
Overall grade
Good 73/100
Verdict
Buy
Hazard flags
⚑ 3
Material
PVC outer jacket, copper conductors, standard connectors
Confidence
78%
PossibleCopper conductor corrosion and oxidation
PossibleThermal degradation of PVC jacket
PossibleMicroplastic shedding from jacket wear
OtterBox
Fre Series Waterproof MagSafe Case for iPhone 17
PFAS grade
Excellent 85/100
Overall grade
Good 67/100
Verdict
Buy with care
Hazard flags
⚑ 1
Material
Polycarbonate and elastomer
Confidence
42%
LikelyElastomer degradation and seal failure
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 OtterBox.
- We flag Elastomer degradation and seal failure on the OtterBox and not on the Anker.
- The Anker is PVC outer jacket, copper conductors, standard connectors where the OtterBox is Polycarbonate and elastomer, 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 OtterBox grade, at 42% confidence against 78%, because it discloses less.
Both products run through the same public rubric, which covers materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More waterproof personal electronics cases, see the full ranking