Withings · Waterproof Fitness Trackers
Withings BeamO 3-in-1 Health MultiScan
Medical device with inherently low PFAS risk profile.
Withings BeamO is a clinical-grade health scanner using medical-grade stainless steel and plastics without known water-repellent or stain-resistant treatments. No PFAS disclosure needed; device design suggests lower concern.
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Medical-grade stainless steel, plastic housing, medical sensors
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
other is a category where PFAS exposure is more common.
The full breakdown
What it's made of and why it matters
The BeamO 3-in-1 uses medical-grade stainless steel for its sensor housing and contact surfaces, which is highly resistant to corrosion and leaching under normal skin contact. The plastic housing is typical polycarbonate or ABS, neither of which poses significant BPA or phthalate risk at room temperature in a non-heated, non-food-contact context. The integrated medical sensors (ECG, SpO2, blood pressure) are sealed electronic components not designed to release materials into the body or environment.
The brand's record and disclosure
Withings maintains CE and FDA clearances for medical devices, indicating third-party compliance auditing, though the company does not publicly disclose detailed material sourcing or PFAS avoidance statements. No safety recalls, chemical contamination incidents, or substantive material safety controversies are on record for this product line. Withings' parent company Nokia has not issued specific toxicology transparency reports for this device category.
How it compares in its category
Wearable medical scanners in this category (Omron, iHealth, AliveCor) typically use similar stainless steel and plastic construction with comparable regulatory pathways. The BeamO's sealed, non-disposable design minimizes material degradation risk versus devices with replaceable adhesive pads or frequent skin-contact gel application. Medical devices sold in regulated markets face stricter material oversight than consumer wellness gadgets, reducing undisclosed chemical risk relative to unregulated health trackers.
If you buy it
Store in a cool, dry location away from direct heat or sunlight to prevent plastic housing degradation. Clean the stainless steel sensor surfaces with a soft, dry cloth after use; avoid harsh solvents or prolonged water immersion beyond normal hand contact. Replace the device if the plastic housing cracks, as it may expose internal electronics. No battery or consumable replacement is needed during its typical 5-year lifespan.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Plastic housing degradation and leaching
Polycarbonate and ABS housing in room-temperature, non-heated use poses minimal leaching risk. No documented cases of chemical release from Withings BeamO housing in normal operation.
Stainless steel corrosion and nickel release
Medical-grade stainless steel (typically 316L) is highly resistant to skin nickel leaching, but individuals with severe nickel sensitivity may experience contact dermatitis from prolonged wear. Risk is substantially lower than fashion jewelry or lower-grade alloys.
Electronic component volatilization or outgassing
Sealed medical sensors do not off-gas volatile organic compounds under normal use. No thermal cycling or overheating mechanism exists in a stationary, hand-held diagnostic tool.
Bacterial growth on sensor surfaces
Stainless steel resists biofilm formation better than porous materials, but cumulative skin contact and moisture can harbor transient bacteria if not cleaned regularly. Standard hygiene (wiping with a dry cloth after use) mitigates this.
Heavy metal contamination in electronic solder or coatings
FDA-cleared medical devices are subject to restricted substances compliance (lead-free solder, RoHS equivalent standards). No independent testing or recalls alleging heavy metal contamination in BeamO are documented.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More waterproof fitness trackers grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.