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

Excellent 75/100

Overall grade

Good 59/100

Verdict

Buy with care

Hazard flags

⚑ 4

Material

TPU, silicone, or plastic shell (unspecified by brand)

Confidence

35%

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

Excellent 100/100

Overall grade

Excellent 92/100

Verdict

Buy

Hazard flags

⚑ 2

Material

Flax fiber and plant-based resin blend, compostable

Confidence

92%

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