Omega X Swatch Mission To Moon Quartz vs Multi-Sport Cardio GPS Watch: which is safer?

Where these two actually differ

• 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 TomTom.
• We flag Elastomer band degradation and skin contact, Polymer case brittleness under UV and thermal stress and Sweat and salt corrosion of internal components on the TomTom and not on the Swatch.
• The Swatch is Quartz crystal, stainless steel case, resin band where the TomTom is Polymer case, elastomer 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 TomTom grade, at 45% confidence against 78%, because it discloses less.