Galaxy Watch9 vs Omega X Swatch Mission To Moon Quartz: which is safer?

Where these two actually differ

• We flag Polymer strap degradation and allergen release, Nickel or metal ion release from stainless steel, Glass display edge trauma and coating degradation and Bacterial growth in strap crevices and seals on the Samsung and not on the Swatch.
• We flag Resin band VOC off-gassing, Resin band degradation over time and Nickel leaching from stainless steel case on the Swatch and not on the Samsung.
• The Samsung is Stainless steel case, glass display, polymer straps, waterproof sealing compounds where the Swatch is Quartz crystal, stainless steel case, resin 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 Samsung grade, at 45% confidence against 78%, because it discloses less.