Samsung · Waterproof Smartphone Cases
Samsung Galaxy Watch Ultra2
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes stainless steel case, sapphire crystal, 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
Stainless steel case, sapphire crystal, elastomer band
Lab data
No public lab test
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What Samsung Galaxy Watch Ultra2 is made of, ingredients and materials
The Galaxy Watch Ultra2 uses a 316L stainless steel case, which is corrosion-resistant and does not leach heavy metals under normal wear. The sapphire crystal lens is chemically inert and does not degrade with heat or UV exposure. The band is elastomer (synthetic rubber), which can absorb sweat and bacteria but does not off-gas volatile organic compounds or contain known endocrine disruptors in standard formulations. No surface coatings that might degrade are documented on this model.
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 bacterial growth and odor
Elastomer bands absorb moisture and can harbor bacteria if not regularly cleaned, particularly in warm climates or after sweating. This is a hygiene issue rather than toxicity, but can trigger skin irritation in sensitive users.
Elastomer degradation and microplastic shedding
Extended UV exposure or ozone from air purifiers can degrade elastomer bands over time, potentially releasing small polymer fragments. Risk is low during normal indoor and outdoor wear but increases if the band is worn continuously for years without replacement.
Skin sensitization from elastomer additives
Elastomer formulations may include accelerators or plasticizers that trigger contact dermatitis in sensitive individuals, though Samsung does not disclose the full additive package. Users with silicone or rubber allergies should test fit before extended wear.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Heavy metals
316L stainless steel is highly corrosion-resistant and is used in medical implants and food contact. No recalls or documented cases of nickel or chromium leaching from Samsung Watch Ultra2 have been reported.
Source, FDA ↗Sapphire crystal optical degradation
Sapphire crystal is chemically stable and will not leach or degrade under normal conditions. It can crack or shatter if dropped, but does not pose a chemical hazard.
How is this PFAS grade calculated?
The brand's record and disclosure
Samsung has published general sustainability statements but does not issue detailed chemical safety disclosures for wearables comparable to major cookware or cosmetics brands. No voluntary PFAS elimination statements have been made for the Watch line. The brand has faced no major recalls for chemical leaching or coating failure on this product line. Repair and replacement parts are readily available through Samsung service channels.
How it compares in its category
Premium smartwatches in this price tier typically use stainless steel and sapphire, making the Galaxy Watch Ultra2 standard for the category. Some competitors (Apple Watch, Garmin) use identical material combinations. The main differentiator is elastomer band composition and longevity, which varies by brand but is not publicly detailed. This product avoids lower-cost watches that use aluminum alloys or plastic crystals, which carry higher leaching and degradation risks.
If you buy it
Clean the elastomer band weekly with mild soap and water to prevent bacterial and odor buildup, especially if worn during exercise. Avoid prolonged contact with harsh chemicals (chlorine, bleach) or abrasive scrubbing on the band. Replace the elastomer band every 12-24 months if cracking, discoloration, or persistent odor develops; Samsung sells official replacements. The stainless steel case and sapphire crystal require no special care beyond standard water rinsing after salt water or sweat exposure.
What is not known about PFAS in this product?
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Samsung has made a specific claim
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.