Fitbit · Waterproof Fitness Trackers & Cases
Fitbit Versa 3 Smart Watch
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes aluminum case, elastomer 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
Aluminum case, elastomer band
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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.
Heavy metals
Aluminum alloys often contain nickel, cobalt, or chromium as strengthening agents. No published composition for Versa 3 aluminum is available; individuals with documented nickel sensitivity should request material data or patch-test before extended wear.
Source, FDA ↗Elastomer band degradation and plasticizer leaching
Elastomer compounds typically contain plasticizers or softening agents to maintain flexibility. Over years of use, heat, sweat, and UV exposure can degrade the material and allow migration of these additives onto skin. No specific data on Versa 3 band stability is published.
Bacterial or fungal growth in band material
Elastomer bands trap moisture and are difficult to fully dry; users commonly report skin rashes or fungal infections from prolonged wear without washing. This is a maintenance and hygiene issue, not a chemical hazard from the material itself.
Allergic contact dermatitis from unknown additives
Elastomer bands may contain accelerators, vulcanization agents, or colorants that can trigger skin sensitization in individuals with contact allergies. Fitbit does not disclose these ingredients, so susceptible users cannot screen the product.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Coating or adhesive breakdown at battery compartment seals
The Versa 3 is sealed at the case back for water resistance. No adhesives or special coatings are publicly described; no user reports of leaching or seal failure leading to contamination are documented.
The full breakdown
What it's made of and why it matters
The Fitbit Versa 3 uses an aluminum alloy case, which is corrosion-resistant and does not leach toxic metals under normal skin contact conditions. The elastomer band is a synthetic rubber compound designed for direct skin wear and water immersion. Unlike ceramic or enamel-coated cookware, neither material is heated during use, eliminating thermal degradation or fume risks. Aluminum in wearables is generally considered inert when anodized or treated as a protective barrier against skin contact.
The brand's record and disclosure
Fitbit (owned by Google since 2021) does not publish detailed material safety data sheets or chemical composition statements for consumer wearables. The company does not advertise certifications for heavy metals or allergen testing specific to the Versa 3. No major recalls or skin toxicity complaints are documented for this model in public databases. The silence on PFAS and material transparency is typical for the wearables industry but limits independent verification of supply chain controls.
How it compares in its category
Smartwatches in this price range commonly use aluminum cases and elastomer bands without published material testing, so Fitbit's approach is industry standard. Competitors like Garmin and Apple similarly do not disclose heavy metal or allergen testing for watch components. The Versa 3 has no known material hazards that distinguish it negatively from peers. Wearables as a category lack the regulatory oversight applied to food-contact items or children's products, so baseline chemical safety relies largely on brand reputation and incident reporting.
If you buy it
Clean the band regularly with mild soap and water to prevent skin irritation from sweat, dirt, or bacterial buildup on the elastomer. If you have nickel sensitivity, contact Fitbit support to confirm nickel levels in the aluminum case; some individuals react to trace metals. Do not immerse in hot water above 40°C (104°F) or leave in direct sunlight for extended periods, as elastomer can degrade and leach plasticizers if stressed. Replace the band if it becomes visibly cracked, discolored, or causes persistent skin redness, as degraded elastomer may increase contact with unknown additives.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Fitbit has made none
Formulations change between production runs, so check the current label. How we grade.
More waterproof fitness trackers & 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.