Even R1 Smart Ring vs Ring 4 Size Smart Ring: which is safer?
Even R1 Smart Ring is our pick, better on PFAS and on the overall hazard picture.
Our pick
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
Oura
Ring 4 Size Smart Ring
PFAS grade
Excellent 85/100
Overall grade
Good 59/100
Verdict
Buy
Hazard flags
⚑ 5
Material
Titanium, stainless steel core
Confidence
35%
PossibleSeal degradation and water ingress
PossibleNickel leaching from stainless steel
ReportedBacterial colonization in band crevices
Where these two actually differ
- We flag Band material variability and Skin sensitization from sweat pooling on the Even Realities and not on the Oura.
- We flag Seal degradation and water ingress, Nickel leaching from stainless steel, Bacterial colonization in band crevices and Skin allergen from metal sensitivity on the Oura and not on the Even Realities.
- The Even Realities is titanium, stainless steel, sapphire crystal where the Oura is Titanium, stainless steel core, which is most of the difference in these two grades.
- These two are level, close enough that price and fit should decide it rather than our grade.
- We are less certain about the Oura grade, at 35% 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