Samsung · Waterproof Smart Rings & Bands
Samsung Galaxy AI Smart Ring Bluetooth Fitness Tracker
Limited public data on coating composition; waterproofing raises concern.
Samsung has not disclosed PFAS-related details for this ring. Water-resistant electronics often use fluorinated coatings, but brand transparency is absent. No third-party testing found.
The safe swap
Fitbit
Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 11 - Silver - (2026)
85/100 safety
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Titanium casing, silicone band, electronics, 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 Ring uses a titanium casing (hypoallergenic, minimal leaching risk) paired with a silicone band (food-grade silicone is generally non-toxic, but quality varies by supplier). The water-resistant coating is the material wildcard: Samsung has not disclosed whether it contains Teflon-type coating, siloxanes, or other fluorinated compounds known to resist water penetration. Electronics and adhesives inside remain unspecified in public literature, raising questions about solder composition and any flame retardants used on circuit boards.
The brand's record and disclosure
Samsung has published general sustainability commitments but remains silent on PFAS use in wearables and does not provide detailed material safety data sheets for consumer products like this ring. The company has faced past criticism for vague chemical disclosure in Galaxy device manufacturing. No independent third-party certifications (e.g., Cradle to Cradle, OEKO-TEX) are listed for this wearable, which is typical for the category but limits verification of chemical controls.
How it compares in its category
Smart rings are an emerging category with minimal industry standardization for material transparency. Most competitors (Oura, Whoop) similarly withhold detailed coating and electronics disclosures. The titanium choice is a premium safety decision compared to cheaper rings that may use nickel-plated or unspecified alloys. However, the water-resistant coating opacity puts it on par with, not ahead of, competitors in terms of chemical disclosure.
If you buy it
Wash the ring and band weekly with mild soap and water; avoid prolonged contact with chlorine pools or saltwater. Do not expose to extreme heat (>60 degrees Celsius) as silicone can degrade and adhesives may weaken. Inspect the band monthly for cracks, discoloration, or peeling; replace immediately if the casing or waterproof coating shows damage to prevent internal electronics exposure. Store in a cool, dry place when not in use; do not leave in sealed bags where sweat and moisture can concentrate.
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.”
Water-resistant coating composition (fluorinated compounds)
Samsung has not disclosed whether the water-resistant finish uses Teflon-type coating, polyurethane, or other perfluorinated coatings. Contact with skin over extended wear and potential coating degradation raise concerns, though risk is lower than with cookware or textiles due to limited surface area and no heating.
Electronics and solder composition
Samsung does not publish the solder alloy, flux, or flame retardant chemistry used in the ring's internal circuit board. Lead-free solder is standard in modern devices, but bismuth and antimony content are not specified. Risk is mitigated by the sealed electronics and lack of direct skin contact, but recycling concerns remain.
Silicone band degradation and leachables
While food-grade silicone is low-toxicity, thermal cycling, UV exposure, and sweat contact can accelerate polymer breakdown over months of use. No specification of silicone grade, plasticizers, or UV stabilizers is publicly available; cheaper rings may use industrial-grade silicone with uncontrolled additives.
Nickel or other allergens in titanium alloy
Medical-grade titanium alloys typically contain no nickel, but Samsung's specific alloy composition is unconfirmed. Risk is low for most users, but individuals with nickel sensitivity should request material certification before purchase. Prolonged moisture exposure under the band can increase dermal contact if micro-tears in the silicone occur.
Adhesive and potting compound offgassing
The ring's internal components are likely bonded with epoxy or urethane adhesives and possibly potted with silicone conformal coatings. No data on volatile organic compound (VOC) or formaldehyde-releaser content exists; however, direct skin contact and sealed design limit inhalation exposure compared to off-gassing furniture or textiles.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 42% 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 Smart Rings & Bands
Fitbit
Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 11 - Silver - (2026)
Titanium and stainless steel with glass sensor
Lower concern smart ring; no PFAS-prone materials identified.
⚠Brand says nothing about PFAS
Fitbit
Qalo QRNT Slim Smart Ring
silicone elastomer with metal core
Smart ring with silicone body; lower concern but no public PFAS disclosure.
⚠Brand says nothing about PFAS
Withings
Black Smart Ring Size 9 - New Women | Color: Black
Titanium alloy ring with sapphire crystal display
Lower concern. Smart ring materials inherently unlikely to require PFAS.
⚠Brand says nothing about PFAS
More waterproof smart rings & bands 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.