TPU Guide Waterproof Case vs Omega X Swatch Mission To Moon Quartz: which is safer?
Sea to Summit TPU Guide Waterproof Case is our pick, better on PFAS and on the overall hazard picture.
Our pick
Sea to Summit
TPU Guide Waterproof Case
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleTPU material degradation and plasticizer leaching
PossibleSeal contamination and bacterial growth
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
Where these two actually differ
- We flag TPU material degradation and plasticizer leaching and Seal contamination and bacterial growth on the Sea to Summit and not on the Swatch.
- 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 Sea to Summit.
- The Sea to Summit is TPU (thermoplastic polyurethane) where the Swatch is Quartz crystal, stainless steel case, resin 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 Sea to Summit 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 →
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