Even R1 Smart Ring vs CZ Smart Men's Smartwatch with Leather Strap: which is safer?
Even R1 Smart Ring is the clear pick. Citizen CZ Smart Men's Smartwatch with Leather 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
Citizen
CZ Smart Men's Smartwatch with Leather Strap
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFormaldehyde residue in leather tanning
PossibleCoating degradation and particulate release
PossibleStainless steel nickel content
Where these two actually differ
- We flag Band material variability and Skin sensitization from sweat pooling on the Even Realities and not on the Citizen.
- We flag Formaldehyde residue in leather tanning, Coating degradation and particulate release, Stainless steel nickel content and Unspecified waterproof sealant or adhesive on the Citizen and not on the Even Realities.
- The Even Realities is titanium, stainless steel, sapphire crystal where the Citizen is Stainless steel case, leather strap, 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 Citizen grade, at 45% confidence against 72%, 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 water-resistant smart rings & bands, see the full ranking