Chrono 42 Quartz Watch vs Smartwatch Withings Steel HR Sport: which is safer?
Swatch Chrono 42 Quartz Watch is the clear pick. Smartwatch Withings Steel HR Sport carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Swatch
Chrono 42 Quartz Watch
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleMineral crystal breakage and laceration
PossibleBattery chemical leakage (internal only)
Withings
Smartwatch Withings Steel HR Sport
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleSkin irritation from gasket or band materials
PossibleVolatile organic compounds from adhesives or coatings
PossibleMicroplastic shedding from band material
Both products run through the same public rubric: 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 smartwatches & fitness trackers: see the full ranking