Amazon.com: Benks - Cell Phone Cases & Covers: Cell Phones & Accessories vs Flaxstic Compostable Phone Case: which is safer?
Flaxstic Compostable Phone Case is our pick, better on PFAS and on the overall hazard picture.
Benks
Amazon.com: Benks - Cell Phone Cases & Covers: Cell Phones & Accessories
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleHeavy metals in pigments (colorants)
PossiblePhthalates or other plasticizers (in plastic shell variant)
PossibleVolatile organic compound (VOC) off-gassing
Our pick
Pela
Flaxstic Compostable Phone Case
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleCoating degradation and durability over time
PossibleAllergic contact dermatitis from plant fiber or resin
Where these two actually differ
- We flag Heavy metals in pigments (colorants), Phthalates or other plasticizers (in plastic shell variant), Volatile organic compound (VOC) off-gassing and Thermal degradation and additive migration at high temperature on the Benks and not on the Pela.
- We flag Coating degradation and durability over time and Allergic contact dermatitis from plant fiber or resin on the Pela and not on the Benks.
- The Benks is TPU, silicone, or plastic shell (unspecified by brand) where the Pela is Flax fiber and plant-based resin blend, compostable, which is most of the difference in these two grades.
- The gap is 25 points, wide enough that this is not a close call, and the Pela is the one to buy.
- We are less certain about the Benks grade, at 35% confidence against 92%, 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 phone cases, see the full ranking