TomTom · Waterproof Fitness Trackers & Cases
Tom Tom Sport Runner Wrist Watch Model 8rs00 Water Resistant Wide Band
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes plastic/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
Plastic/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.
Coating degradation and peeling
If the watch case or band edges have a thin paint or protective layer, extended UV exposure or abrasion may cause flaking over years of use. This is cosmetic rather than a health hazard but can expose underlying plastic and increase visibility of wear.
Bacterial or mold growth in band seams
Moisture trapped in seams or under the band during humid use or poor drying can promote microbial growth. This is a hygiene issue rather than a chemical hazard; daily drying and occasional cleaning mitigate risk.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Elastomer polymer leaching
Plastic and elastomer bands used in fitness trackers are not known to leach BPA, phthalates, or other endocrine disruptors at skin temperature. No recalls or published safety warnings exist for this product or similar TomTom models.
Heavy metals
No cadmium, lead, or antimony contamination has been reported in TomTom Sport Runner plastics or elastomer bands. The brand does not use ceramic glazes or enamel coatings that typically carry this risk.
Source, FDA ↗Formaldehyde / VOCs
No formaldehyde resins or off-gassing issues are documented for plastic or elastomer sports watch bands. This hazard is more relevant to textiles, foam, or treated leather.
Source, ATSDR ↗The full breakdown
What it's made of and why it matters
The TomTom Sport Runner 8rs00 uses a plastic or elastomer (rubber-like polymer) band paired with a plastic or composite watch case. These materials are chosen for durability, water resistance, and comfort during athletic use. Elastomer bands are generally stable under normal wear and sweat exposure; they do not leach harmful chemicals at body temperature and are not prone to the coating degradation issues seen in metal watches or ceramic cookware.
The brand's record and disclosure
TomTom is a GPS and wearables manufacturer with no published recall history involving chemical hazards for this model. The brand has not issued a PFAS safety statement, and no PFAS-containing coating or treatment has been documented for this product. TomTom does not widely publish material safety data for consumer wearables, which is typical for the fitness tracker industry but limits independent verification of material sourcing.
How it compares in its category
Sports watches in this category commonly use similar elastomer and plastic construction. This product is materially equivalent to competitors like Garmin and Apple Watch bands in terms of chemical risk profile. Water-resistant fitness trackers do not rely on chemical coatings for water resistance as much as sealed construction and gaskets, reducing exposure to leachable compounds common in treated textiles or coated cookware.
If you buy it
Rinse the band with fresh water after saltwater or heavy sweat exposure to prevent salt crystallization and material brittleness over time. Avoid prolonged exposure to direct sunlight, solvents, or extreme heat above 50°C, which can degrade elastomers. Replace the band if it shows cracking, discoloration, or loss of elasticity, typically after 2-3 years of heavy use. Clean with mild soap and water; harsh cleaners are unnecessary and may accelerate polymer degradation.
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 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.