Omega X Swatch Mission To Moon Quartz vs Smart Band 9 Pro Smartwatch: which is safer?
Xiaomi Smart Band 9 Pro Smartwatch is our pick, better on PFAS and on the overall hazard picture.
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
Our pick
Xiaomi
Smart Band 9 Pro Smartwatch
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleElastomer strap degradation and skin contact
PossibleAluminum alloy corrosion in saltwater or high-chlorine environments
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 Xiaomi.
- We flag Elastomer strap degradation and skin contact and Aluminum alloy corrosion in saltwater or high-chlorine environments on the Xiaomi and not on the Swatch.
- The Swatch is Quartz crystal, stainless steel case, resin band where the Xiaomi is Aluminum alloy case, elastomer strap, 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 Xiaomi 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