Even R1 Smart Ring vs Smartwatch Bands Nylon Quick Release Waterproof Strap: which is safer?
Even R1 Smart Ring is the clear pick. COROS Smartwatch Bands Nylon Quick Release Waterproof Strap 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
Smartwatch Bands Nylon Quick Release Waterproof Strap
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossiblePFAS in waterproof coating (fluorochemical treatment)
PossibleCoating degradation and microparticle shedding
PossibleSkin sensitization from unknown additives in coating or dyes
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 PFAS in waterproof coating (fluorochemical treatment), Coating degradation and microparticle shedding and Skin sensitization from unknown additives in coating or dyes on the Coros and not on the Even Realities.
- The Even Realities is titanium, stainless steel, sapphire crystal where the Coros is Nylon with waterproof treatment, coating unspecified, 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