TomTom · Waterproof Smartwatches & Fitness Trackers
TomTom Spark Music GPS Fitness Watch
Waterproof sports watch; material composition and coatings undisclosed.
TomTom provides no public disclosure of PFAS content or water-resistant coating chemistry. Waterproof electronics often use Teflon-family coating treatments, but specifics remain unknown for this model.
The safe swap
Swatch
Swatch Chrono 42 Quartz Watch
85/100 safety
Same rubric that flunked this product. The swap earned its B.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Plastic/elastomer case, unspecified water-resistant 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 TomTom Spark Music uses a plastic and elastomer (rubber-like polymer) case with an unspecified water-resistant or waterproof coating. The exact elastomer type and any additives in that coating are not publicly disclosed by TomTom. This matters because elastomers can leach plasticizers or other additives, especially under heat or with prolonged skin contact, and mystery coatings may contain PFAS or other durable-water-repellent chemicals to achieve water resistance. Without material transparency, assessing long-term leaching risk is difficult.
The brand's record and disclosure
TomTom has not publicly disclosed material safety certifications (such as RoHS, REACH compliance statements, or PFAS disclosure) for this device. The brand maintains a largely silent stance on PFAS in its sports watches. No major recalls or contamination incidents are on record for the Spark Music, but the lack of proactive transparency is a yellow flag for a company selling a product worn directly on skin.
How it compares in its category
Most sports watches in this price range use similar plastic/elastomer construction, so the Spark Music is typical for its class. Competitors like Garmin and Fitbit provide more detailed material safety statements and certifications. The Spark Music does not stand out as unusually transparent or risky, but it lags behind best-in-class disclosure practices for wearables that contact skin daily.
If you buy it
Wear it during exercise and remove it before sleeping to minimize prolonged skin contact and reduce any potential additive migration. Avoid exposing it to extreme heat (saunas, dishwashers, direct sunlight for hours) which can accelerate leaching from polymers. Clean the band regularly with plain soap and water, especially if you sweat heavily, to remove accumulated salts and oils. Replace the elastomer band if it becomes sticky, discolored, or brittle, as these signs indicate polymer degradation.
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.”
Plasticizer/additive leaching from elastomer band
Elastomer sports watch bands commonly contain plasticizers or UV stabilizers that can migrate to skin, especially with sweat and heat. TomTom has not disclosed the specific elastomer formulation for the Spark Music, so the degree of risk is unquantified.
Undisclosed water-resistant coating composition
The water-resistant coating composition is not publicly stated. While most such coatings today avoid legacy PFAS, some brands still use fluorinated compounds. Without disclosure, the presence and type of any such chemicals cannot be ruled out.
Heavy metals in plastic colorants or pigments
No recalls or reports link the Spark Music to heavy metal contamination from case colorants. Modern consumer electronics generally meet RoHS limits, though TomTom does not publish RoHS certification for this model.
Volatile organic compounds (VOCs) or off-gassing from case materials
No odor or off-gassing complaints are documented for the Spark Music. Plastic watch cases typically off-gas minimally after the first few days of use, but the product has not been independently tested for VOC emissions.
Skin irritation or allergic sensitization from band material
Some users of elastomer sports bands report mild skin irritation or contact dermatitis from prolonged wear or sensitivity to mold growth in damp bands. The Spark Music band material is not hypoallergenic certified, so risk depends on individual skin sensitivity.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 35% 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 Smartwatches & Fitness Trackers
Swatch
Chrono 42 Quartz Watch
Stainless steel case, mineral/plastic crystal, standard watch components
Lower concern. Standard watch materials pose minimal PFAS risk.
⚠Brand says nothing about PFAS
Swatch
SEA WASP
Plastic/resin watch case and strap
Typical consumer watch, no known PFAS risk signal identified
⚠Brand says nothing about PFAS
Swatch
Neon Seppia Big Bold Chrono Quartz Watch
Stainless steel case, plastic/resin band, mineral or acrylic crystal
Lower concern. Standard watch materials typically lack intentional PFAS use.
⚠Brand says nothing about PFAS
More waterproof smartwatches & 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.