Garmin Instinct 3 Solar vs BeamO 3-in-1 Health MultiScan: which is safer?

Withings BeamO 3-in-1 Health MultiScan is the clear pick. Garmin Instinct 3 Solar carries a failing PFAS grade, and we never recommend buying a failing product.

boAt

Garmin Instinct 3 Solar

PFAS grade

F 40/100

Overall grade

F 22/100

Verdict

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Hazard flags

⚑ 3

Material

Polymer case, silicone band, waterproof coating

Confidence

45%

PossibleWaterproof coating leachables (fluorochemicals and other surfactants)

PossiblePolymer case degradation and microplastic potential

ReportedSilicone band skin irritation and bacterial/fungal growth

Why this grade

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

Why this gradeBuy

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