Versa 4 Fitness Smartwatch vs Chrono 42 Quartz Watch: which is safer?
Swatch Chrono 42 Quartz Watch is the clear pick. Fitbit Versa 4 Fitness Smartwatch carries a failing PFAS grade, and we never recommend buying a failing product.
Fitbit
Versa 4 Fitness Smartwatch
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleResin band degradation and monomer leaching
ReportedUndisclosed water-resistant coating composition
PossibleAluminum case corrosion under salt or chlorine exposure
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)
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