Even R1 Smart Ring vs Silicone Watch Bands for Polar Smartwatch Waterproof Strap Camo Blue / 20mm: which is safer?

Where these two actually differ

• We flag Band material variability and Skin sensitization from sweat pooling on the Even Realities and not on the Polar.
• We flag Bacterial/microbial growth, Silicone degradation and particle release and Adhesive or seal integrity failure on the Polar and not on the Even Realities.
• The Even Realities is titanium, stainless steel, sapphire crystal where the Polar is Silicone, 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 Polar grade, at 45% confidence against 72%, because it discloses less.