Samsung · Waterproof Smartwatches & Fitness Trackers
Samsung Galaxy Watch Ultra2
No public PFAS disclosure; water-resistance coating composition unspecified.
Samsung Galaxy Watch Ultra2 uses stainless steel and elastomer materials but does not publicly disclose PFAS content or water-resistance treatment composition. Limited transparency on coatings raises uncertainty.
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
Stainless steel case, sapphire crystal, elastomer band with 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 Galaxy Watch Ultra2 uses a 316L stainless steel case, which is a high-grade surgical alloy with minimal leaching risk under normal wear. The sapphire crystal screen is inert and does not degrade or leach into skin. The elastomer band (silicone or rubber composite) is the primary contact material; elastomers can shed microparticles and their water-resistant surface coating composition is not publicly detailed by Samsung, raising uncertainty about potential hydrophobic agents used in that topcoat.
The brand's record and disclosure
Samsung has not published specific material safety data sheets or PFAS use statements for wearable bands and coatings. The company maintains general environmental policies but does not disclose proprietary water-resistance coating formulations for consumer products. No major recalls linked to band chemistry or coating leaching have been established for Galaxy Watch models. Samsung's silence on PFAS in water-resistant treatments is typical for the wearables industry but limits third-party verification.
How it compares in its category
Premium smartwatches in this segment (Apple Watch Ultra, Garmin) similarly use stainless steel and elastomer bands with proprietary water-resistant treatments that are rarely disclosed. The Galaxy Watch Ultra2 offers comparable materials to competitors; no category leader has published elastomer or coating safety data. Titanium alternatives exist but are not available in this Samsung model. The lack of transparency is a category-wide issue, not specific to Samsung.
If you buy it
Inspect the elastomer band monthly for visible cracking, discoloration, or surface degradation, as water-resistant coatings can wear and degrade elastomers over 12-24 months of use. Rinse the band under fresh water after saltwater or chlorine exposure to reduce coating stress. Avoid prolonged direct sunlight storage, which can degrade elastomer and topcoat. Replace the band if visible peeling or brittleness appears, and do not attempt to repair degraded water-resistant coatings with aftermarket sealants.
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.”
Elastomer band microparticle shedding
Elastomer bands can shed microparticles during flexing and wear, particularly as the material ages. While silicone is generally low-toxicity, the rate and scale of shedding for the Galaxy Watch Ultra2 band is not quantified in public testing.
Water-resistant coating composition (undisclosed)
The elastomer band coating that maintains water resistance is not publicly disclosed by Samsung. Hydrophobic surface treatments historically have included PFOA, Teflon-type coating, or other fluorinated agents, though composition cannot be confirmed without manufacturer data.
Metal contact dermatitis from stainless steel
316L stainless steel is surgical-grade and nickel content is low. No established dermatitis complaints specific to Galaxy Watch Ultra2 have been reported, though individuals with nickel sensitivity should patch-test any new metal-contact wearable.
Sapphire crystal edge abrasion
Sapphire crystal does not leach or degrade under normal skin contact. Edge chipping from impact can expose underlying adhesives or bezel materials, but such damage is mechanical rather than chemical.
Adhesive off-gassing from band attachment
Band attachment adhesives in wearables can theoretically off-gas volatile compounds during manufacturing and early use. No specific testing or complaints for Galaxy Watch Ultra2 adhesive volatility have been documented.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 45% 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.