Fossil · Waterproof Fitness Trackers
Fossil Gen 6 Smartwatch with Speaker, Heart Rate, and NFC
Waterproof smartwatch likely has water-repellent coating; PFAS content unclear from brand.
Smartwatches often use water-resistant coatings that may contain PFAS, but Fossil discloses nothing. No independent testing or certification available for this model.
The safe swap
Withings
Withings BeamO 3-in-1 Health MultiScan
100/100 safety
Same rubric that flunked this product. The swap earned its A.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Stainless steel case, glass screen, elastomer/silicone band with waterproof coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
The Fossil Gen 6 uses a stainless steel case (corrosion-resistant, inert with skin), Gorilla Glass screen (chemically strengthened to resist scratches and fracture), and elastomer/silicone band with a waterproof coating. The waterproof coating is the primary concern: most water-resistant textiles and elastomers rely on water-repellent coating (water-repellent coating) finishes, which historically used PFAS compounds; modern alternatives exist but are not universally adopted. No public material safety datasheet from Fossil details the specific water-repellent coating chemistry, so the presence and type of PFAS cannot be confirmed from available information.
The brand's record and disclosure
Fossil does not publish comprehensive material safety disclosures or certifications (e.g., OEKO-TEX, bluesign) for its wearables. The brand has been silent on PFAS use and has no known public commitment to phase out fluorinated water-repellent coating coatings. Fossil has faced no major recalls or toxicity litigation over smartwatch materials, but this reflects limited public scrutiny of wearable safety rather than verified safety performance. The absence of transparency is a material weakness in assessing long-term skin contact risk.
How it compares in its category
Smartwatches as a category rarely undergo third-party toxicity testing or material disclosure. The Fossil Gen 6 is typical of mainstream brands in offering stainless steel and silicone construction without published safety certifications. Premium alternatives (e.g., some Garmin models) occasionally disclose materials more openly, though waterproof-coating transparency remains industry-wide poor. Fewer alternatives exist in the budget-to-mid smartwatch range that offer both waterproofing and material clarity.
If you buy it
Wear the band over clothing when possible to minimize sustained skin contact with the waterproof coating, especially if you have sensitive skin or dermatitis history. Rinse the band with fresh water and dry thoroughly after salt water or chlorine exposure to reduce coating degradation and potential leaching. Do not expose the watch to prolonged heat (e.g., sauna, dishwasher, direct sunlight for hours) as elastomer coatings can soften and degrade faster. Replace the band if visible cracking, peeling, or discoloration appears; continued wear of a degraded coating may increase contact with underlying elastomer and residual finish chemicals.
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.”
PFAS in waterproof coating (water-repellent coating finish)
Smartwatch bands require water-repellent treatment; Fossil has not disclosed whether this uses legacy PFAS (PFOA/Teflon-type coating-based) or newer fluorine-free alternatives. Skin contact is prolonged and frequent, warranting concern if PFAS is present, though dermal absorption of PFAS from coatings is understood to be low compared to ingestion.
Elastomer degradation and leaching
Silicone and elastomer bands degrade with UV exposure, heat, and sweat over 1-2 years of daily wear. No toxicological data on Fossil's specific elastomer formulation is publicly available; degradation products and residual additives (plasticizers, slip agents) could migrate to skin if coating fails.
Glass screen fragility and sharp edges
Gorilla Glass is durable but can shatter on impact, creating sharp edges near the wrist. This is a mechanical hazard rather than chemical; no toxicity concern from the glass itself unless coating is applied (unknown for this model).
Nickel in stainless steel case
Stainless steel typically contains 8-12% nickel. Most people tolerate brief contact, but individuals with nickel sensitivity may develop contact dermatitis. Fossil does not specify nickel content or offer a nickel-free version of the Gen 6.
Heavy metals in electronic components (not accessible)
The sealed electronics (battery, circuit board) contain cadmium, lead, and other heavy metals per standard electronic waste regulations. These are not a direct skin hazard if the case remains intact, but improper disposal poses environmental risk. Fossil has not disclosed a take-back or recycling program for this model.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 45% 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.
Safer alternatives in Waterproof Fitness Trackers
Withings
BeamO 3-in-1 Health MultiScan
Medical-grade stainless steel, plastic housing, medical sensors
Medical device with inherently low PFAS risk profile.
✓Naturally PFAS-free material
Whoop
Peak Health and Fitness Wearable 12-Month Membership
silicone band, electronics, stainless steel hardware
Wearable membership with minimal PFAS risk indicators.
⚠Brand says nothing about PFAS
Whoop
MG Navigator Band
Elastomer band (silicone-based or similar)
Lower concern fitness band, but brand silence on materials limits certainty.
⚠Brand says nothing about PFAS
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.