Omega X Swatch Mission To Moon Quartz vs Scanwatch HWA09 Hybrid Smartwatch: which is safer?
Omega X Swatch Mission To Moon Quartz is our pick, better on PFAS and on the overall hazard picture.
Our pick
Swatch
Omega X Swatch Mission To Moon Quartz
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleResin band VOC off-gassing
PossibleResin band degradation over time
PossibleNickel leaching from stainless steel case
Withings
Scanwatch HWA09 Hybrid Smartwatch
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleElastomer band degradation and additive leaching
PossibleBacterial and fungal growth on band
LikelyWaterproofing chemistry (PFAS surrogate)
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 Withings.
- We flag Elastomer band degradation and additive leaching, Bacterial and fungal growth on band, Waterproofing chemistry (PFAS surrogate) and Stainless steel nickel content and skin sensitivity on the Withings and not on the Swatch.
- The Swatch is Quartz crystal, stainless steel case, resin band where the Withings is stainless steel, sapphire crystal, 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 Withings grade, at 45% confidence against 78%, 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 →
More waterproof smartphone cases, see the full ranking