Even R1 Smart Ring vs Nylon Sport Band for WHOOP 5.0 & MG: which is safer?

Even R1 Smart Ring is the clear pick. Nylon Sport Band for WHOOP 5.0 & MG carries a failing PFAS grade, and we never recommend buying a failing product.

Our pick

Even R1 Smart Ring

Even Realities

Even R1 Smart Ring

PFAS grade

Excellent 85/100

Overall grade

Excellent 77/100

Verdict

Buy

Hazard flags

⚑ 2

Material

titanium, stainless steel, sapphire crystal

Confidence

72%

PossibleBand material variability

PossibleSkin sensitization from sweat pooling

Nylon Sport Band for WHOOP 5.0 & MG

Whoop

Nylon Sport Band for WHOOP 5.0 & MG

PFAS grade

Poor 40/100

Overall grade

Bad 24/100

Verdict

Skip

Hazard flags

⚑ 4

Material

Nylon with water-repellent coating treatment

Confidence

45%

PossiblePFAS in water-repellent coating finish

PossibleMicrofiber shedding

PossibleBacterial growth and skin irritation

Where these two actually differ

  • We flag Band material variability and Skin sensitization from sweat pooling on the Even Realities and not on the Whoop.
  • We flag PFAS in DWR finish, Microfiber shedding, Bacterial growth and skin irritation and Coating adhesion and degradation on the Whoop and not on the Even Realities.
  • The Even Realities is titanium, stainless steel, sapphire crystal where the Whoop is Nylon with DWR treatment, 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 Whoop grade, at 45% 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