TomTom · Waterproof Smartphone Cases
TomTom Spark Music GPS Fitness Watch
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes plastic/elastomer case, 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
Plastic/elastomer case
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.
Elastomer band degradation and leaching
Extended exposure to sweat, sunscreen, and high heat may cause elastomer polymers to soften, crack, or release residual monomers and plasticizers. Risk increases in tropical climates or with daily water sports use over 2-3 years.
Microplastics
Rubbing of elastomer band against skin during friction may shed microparticles; quantity is minimal in normal use but increases with visible cracking or brittleness.
Source, EPA ↗What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Heavy metals
No recalls or test results document lead, cadmium, or other heavy metals in the Spark Music casing or band. Injection-molded consumer electronics typically use regulated pigments, but the brand does not publish material test certificates.
Source, FDA ↗Adhesive or sealant off-gassing
The sealed design relies on gaskets and friction fits rather than adhesives; no documented volatile organic compound (VOC) complaints for this model exist in the available record.
Formaldehyde / VOCs
The elastomer band does not carry applied fabric dyes or resin finishes typical of textiles, reducing exposure risk to these additives.
Source, ATSDR ↗The full breakdown
What it's made of and why it matters
The TomTom Spark Music is a rigid plastic and elastomer sports watch casing, not a soft carrying pouch or case. The body is injection-molded thermoplastic (likely polycarbonate or ABS) with elastomer bands, sealed against water ingress via gaskets and material thickness rather than surface treatments. This construction avoids the coating-related hazards (lead, cadmium, Teflon-type coating degradation) that affect enameled cookware or fabric-lined cases with laminations. Elastomer straps present minimal leaching risk during normal wear against skin.
The brand's record and disclosure
TomTom has not issued public statements on PFAS use in this device or category. The brand does not highlight material safety certifications (RoHS, phthalate-free claims) in product marketing for the Spark Music. No recalls tied to chemical leaching or off-gassing have been recorded for this model. Given the product's nature as a sealed electronics device rather than food-contact or high-heat item, disclosure gaps are less critical than they would be for cookware or children's products.
How it compares in its category
Compared to fabric-lined waterproof cases or pouches, the Spark Music avoids formaldehyde resins and flame-retardant off-gassing entirely. Compared to polymer watchbands from other brands, this elastomer strap sits midrange in transparency; some competitors (Garmin, Apple) provide material specs, others do not. The sealed plastic housing is lower-risk than soft silicone cases prone to degradation and leaching with UV and sweat exposure over years.
If you buy it
Rinse the watch and band with fresh water after saltwater or chlorine exposure to prevent accelerated elastomer brittleness. Do not leave it in direct sunlight for extended periods, as UV can degrade polymers over time. Replace the elastomer band if it becomes visibly cracked, discolored, or sticky (signs of polymer degradation). Store in a cool, dry place rather than a hot vehicle, which can soften plastics and cause minor outgassing.
What we don’t know
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- TomTom 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.