Withings · Waterproof Smartphone Cases
Withings Smartwatch 0850630 Smartwatch Withings INW510 Scanwatch + Body White
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes stainless steel case, elastomer/polymer band, with no water-repellent coating named. Water resistance on products like this usually comes from the material and its seals rather than a surface treatment. The brand has published no PFAS statement for it.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Stainless steel case, elastomer/polymer band
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Withings Smartwatch 0850630 Body White is made of, ingredients and materials
The ScanWatch case is constructed from stainless steel, which is chemically inert and does not leach metals under normal skin contact conditions. The band is elastomer or polymer, likely silicone or thermoplastic polyurethane, both of which are stable polymers with no known tendency to off-gas or leach harmful compounds during typical wrist wear. The closed case design prevents internal components (electronics, battery) from contacting skin or moisture directly.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Allergens in band material or finishes
Elastomer bands may contain residual mold release agents or accelerators used in manufacturing; these occasionally trigger contact dermatitis in sensitive individuals. Rotating band wear and periodic washing reduce risk. Brand does not disclose full additive package for the band.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Stainless steel leaching (nickel, chromium, molybdenum)
Stainless steel contact with skin in dry wearable conditions does not leach metals at detectable levels. No documented cases of nickel dermatitis attributable to this watch model; users with known nickel sensitivity should consult dermatologist before purchase.
Elastomer/polymer band degradation and leaching
Silicone and TPU bands used in smartwatches are stable under normal wear and sweat exposure. No published testing shows problematic leaching of plasticizers or monomers from Withings bands into skin or sweat.
Battery leakage or internal chemical exposure
The sealed case design isolates the battery and electronics from skin contact. IP68 rating indicates robust sealing; leakage would constitute a manufacturing defect, not a material hazard. No recall history for battery leaks on this model.
How is this PFAS grade calculated?
The brand's record and disclosure
Withings has not published a dedicated PFAS reduction statement, though the stainless steel case itself does not require water-repellent coatings to achieve IP68 rating (achieved via seals and material selection alone). The brand has not faced documented chemical safety recalls for this model. Withings markets the ScanWatch as a health-tracking device; regulatory compliance with CE marking and medical device directives is expected but detailed chemical composition disclosures remain limited.
How it compares in its category
Smartwatches in this price and feature tier typically use stainless steel or aluminum cases paired with silicone or Teflon-family coating bands. Stainless steel case material is not linked to aluminum leaching risks. The elastomer band is standard practice and poses fewer risks than fabric straps that may contain dyes or finishes. Overall material selection is conservative and aligned with mainstream wearable safety practice.
If you buy it
No special precautions beyond routine care are necessary. Clean the band periodically with mild soap and water to prevent skin irritation from sweat or dirt accumulation. The device is rated IP68 (suitable for swimming); saltwater immersion should be followed by rinsing to prevent corrosion of any non-stainless fasteners. Battery replacement at end of life requires sending to manufacturer; do not attempt disassembly. Band replacement with genuine or third-party elastomer bands is straightforward.
What is not known about PFAS in this product?
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Withings has made none
Formulations change between production runs, so check the current label. How we grade.
More waterproof smartphone cases 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.