Even R1 Smart Ring vs Nylon Sailcloth Watch Bands Quick Release Strap Waterproof Sport: which is safer?
Even R1 Smart Ring is the clear pick. COROS Nylon Sailcloth Watch Bands Quick Release Strap Waterproof Sport carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Even Realities
Even R1 Smart Ring
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleBand material variability
PossibleSkin sensitization from sweat pooling
Coros
Nylon Sailcloth Watch Bands Quick Release Strap Waterproof Sport
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
Likelywater-repellent coating (water-repellent coating) / Waterproof Coating Chemistry
PossibleFormaldehyde Resins in Nylon Textiles
PossibleCoating Degradation and Microparticle Release
Where these two actually differ
- We flag Band material variability and Skin sensitization from sweat pooling on the Even Realities and not on the Coros.
- We flag Durable Water Repellent (DWR) / Waterproof Coating Chemistry, Formaldehyde Resins in Nylon Textiles, Coating Degradation and Microparticle Release and Allergic Contact Dermatitis from Undisclosed Additives on the Coros and not on the Even Realities.
- The Even Realities is titanium, stainless steel, sapphire crystal where the Coros is Nylon with unspecified waterproof coating, which is most of the difference in these two grades.
- The gap is 45 points, wide enough that this is not a close call, and the Even Realities is the one to buy.
- We are less certain about the Coros grade, at 35% confidence against 72%, because it discloses less.
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 water-resistant smart rings & bands: see the full ranking