Fre Case for iPhone 11 Pro vs FlexQuartz MagSafe Case for iPhone 17 Pro: which is safer?
These two grade almost identically. Pick on price and preference; neither has a PFAS edge.
LifeProof
Fre Case for iPhone 11 Pro
PFAS grade
Excellent 85/100
Overall grade
Excellent 77/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Polycarbonate and synthetic rubber
Confidence
45%
PossiblePolycarbonate degradation under UV and heat stress
PossibleSynthetic rubber gasket degradation or leaching
Tech21
FlexQuartz MagSafe Case for iPhone 17 Pro
PFAS grade
Excellent 85/100
Overall grade
Excellent 77/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Thermoplastic polyurethane (TPU) blend
Confidence
35%
PossiblePhthalates in TPU blends
PossibleAllergen sensitivity to TPU or additives
Where these two actually differ
- We flag Polycarbonate degradation under UV and heat stress and Synthetic rubber gasket degradation or leaching on the LifeProof and not on the Tech21.
- We flag Phthalates in TPU blends and Allergen sensitivity to TPU or additives on the Tech21 and not on the LifeProof.
- The LifeProof is Polycarbonate and synthetic rubber where the Tech21 is Thermoplastic polyurethane (TPU) blend, 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.
Both products run through the same public rubric: 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 phone cases: see the full ranking