Coros averages 70 out of 100 on PFAS Authority's PFAS and toxin screen across the 6 Coros products graded as of October 2026, and 4 of them reach its 70 point pass mark.
Free to quote with attribution to PFAS Authority and a link to pfasauthority.com/brands/coros.
Coros grades Good on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
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Coros averages 70 out of 100 on PFAS Authority's PFAS and toxin screen across the 6 Coros products graded as of October 2026, and 4 of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
Is Coros non-toxic?
Coros Apex Silicone Breathable Pin & Tuck is the highest-graded Coros product we have scored, at 85/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
Which Coros products are lower concern for PFAS?
The highest-graded Coros products we have scored are Coros Apex Silicone Breathable Pin & Tuck, Coros FKM Rubber Watch Band, COROS Silicone Watch Band - Unisex Replacement Strap For Smartwatch teal-blue / 22mm. That is our model-based estimate from materials and public disclosure, not a lab test.
Which Coros products should I avoid?
The lowest-graded Coros products we have scored are COROS Smartwatch Bands Nylon Quick Release Waterproof Strap, COROS Nylon Sailcloth Watch Bands Quick Release Strap Waterproof Sport. Each one links to the evidence behind its grade.
