Even R1 Smart Ring vs Smart Ring 4: which is safer?
These two grade almost identically. Pick on price and preference; neither has a PFAS edge.
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
Smart Ring 4
PFAS grade
Excellent 85/100
Overall grade
Excellent 77/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Titanium body
Confidence
35%
PossibleBattery or electronics leaching (cadmium, lithium)
PossibleDegradation of sensor coatings or optical window
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 Battery or electronics leaching (cadmium, lithium) and Degradation of sensor coatings or optical window on the Oura and not on the Even Realities.
- The Even Realities is titanium, stainless steel, sapphire crystal where the Oura is Titanium body, 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 →
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