Samsung · Waterproof Fitness Trackers & Cases
For Samsung Galaxy Watch Ultra 47mm Unisex Sport Waterproof Tpu Watch
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes tPU polymer, 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
TPU polymer
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.
TPU degradation and surface deterioration
TPU is durable but can yellow, become sticky, or crack after 2-3 years of intense UV and thermal exposure; this is cosmetic and functional degradation, not a chemical hazard, but may prompt premature replacement.
Waterproof seal integrity and bacterial growth
Waterproofing on this case depends on physical seals rather than chemical coatings. If seals degrade or gaps form, trapped moisture may promote bacterial or mold growth beneath the case; regular cleaning and drying mitigate this risk.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Volatile organic compound off-gassing
No testing or recall data indicates VOC emission from Samsung TPU watch cases during normal wear. TPU formulations used in consumer electronics are typically low-odor and stable at skin temperature.
Skin contact allergens or irritation
TPU is hypoallergenic and does not contain known sensitizing dyes or reactive chemicals. Irritation from this case would more likely stem from sweat or salt accumulation beneath the case rather than the material itself.
Migration of plasticizers or monomers
Properly formulated TPU does not contain free phthalates or unreacted isocyanate monomers at consumer-use temperatures. No documented leaching events are on record for Samsung TPU accessories.
The full breakdown
What it's made of and why it matters
This watch case is TPU (thermoplastic polyurethane), a flexible elastomer commonly used in protective phone cases and watch bands. TPU is chemically inert under normal use conditions and does not leach phthalates or BPA into skin contact during wear. The material is durable, resistant to degradation from sweat and water exposure, and does not require protective coatings that might introduce additional chemical hazards.
The brand's record and disclosure
Samsung has not issued public statements about PFAS use in this specific accessory, nor are there documented PFAS coatings listed in product specifications. The company has faced scrutiny over other product categories (displays, semiconductors) but no established safety recalls or hazard findings exist for TPU watch cases. Transparency on accessory chemistry remains limited industry-wide.
How it compares in its category
TPU cases are industry-standard for sport watches and rank among the lower-hazard protective options compared to silicone bands (potential volatile organic compound off-gassing) or neoprene alternatives. Unlike rigid plastic cases or metal bezels, TPU avoids sharp edges and does not require paint or decorative coatings that introduce lead or cadmium risk. This material choice aligns with mainstream consumer safety expectations for fitness wearables.
If you buy it
Clean the case with mild soap and water after sweat or saltwater exposure to prevent skin irritation from salt buildup, not from the material itself. Avoid prolonged storage in direct sunlight or heat above 60 degrees Celsius, as TPU can degrade and become sticky over time. Replace the case if discoloration, cracking, or surface tackiness develops, typically after 2-3 years of daily sport use. No special maintenance beyond drying is required.
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
- Samsung 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.