Helio Smart Ring Health Tracker vs Spigen Lite Fit Watch Band for Google Pixel Watch: which is safer?

Where these two actually differ

• We flag Polymer band composition and residual monomers and Bacterial growth in sealed band-case junction on the Amazfit and not on the Google.
• We flag Allergen contact dermatitis (nickel, latex, colorant sensitivity), Silicone degradation and microparticle shedding and Bacterial or mold growth in band material on the Google and not on the Amazfit.
• The Amazfit is Titanium alloy case, polymer band where the Google is Silicone watch band, 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 Amazfit grade, at 35% confidence against 72%, because it discloses less.