Nomad GPS Watch vs BeamO 3-in-1 Health MultiScan: which is safer?
Withings BeamO 3-in-1 Health MultiScan is the clear pick. Coros Nomad GPS Watch carries a failing PFAS grade, and we never recommend buying a failing product.
Coros
Nomad GPS Watch
PFAS grade
F 40/100
Overall grade
F 36/100
Verdict
Skip
Hazard flags
⚑ 1
Material
Stainless steel case, elastomer band, waterproof coating
Confidence
45%
PossibleWaterproof coating (water-repellent coating/Teflon-type coating analogs)
Our pick
Withings
BeamO 3-in-1 Health MultiScan
PFAS grade
A 100/100
Overall grade
A 92/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Medical-grade stainless steel, plastic housing, medical sensors
Confidence
72%
PossibleStainless steel corrosion and nickel release
PossibleBacterial growth on sensor surfaces
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 fitness trackers: see the full ranking