· Water-Resistant Smart Rings & Bands
1-Sense Active Multi-Functional Health Tracking Smart Ring
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes titanium alloy band, elastomer strap, 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
Titanium alloy band, elastomer strap
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What 1-Sense Active Multi-Functional Smart Ring is made of, ingredients and materials
The band is titanium alloy, a biocompatible metal with very low leaching potential and high corrosion resistance. The elastomer strap is a synthetic polymer engineered for skin contact; The brand does not specify the elastomer type (common options include silicone or TPU), but neither class is known to off-gas volatile compounds at body temperature. The sealed electronics housing isolates the battery and circuitry from direct skin contact, reducing exposure to any internal materials.
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 strap degradation (leachate risk)
The elastomer material (likely silicone or TPU) may degrade with prolonged sweat exposure, heat, or UV light. Degradation could theoretically release oligomers or plasticizers, though incidence and severity in silicone or TPU formulations are generally low. No documented leaching reports for rings.
Battery and internal component exposure (if casing breached)
The sealed housing protects against incidental contact with the lithium battery and circuitry. If the case is physically damaged or the seal fails, exposure to battery chemicals (lithium, cobalt, electrolyte) is possible. This is a mechanical integrity issue rather than a material leaching issue.
Skin irritation from strap material or accumulated residue
Some users with sensitive skin may experience irritation from prolonged contact with elastomer or from sweat and bacteria accumulation under the band. This is not a material toxicity issue but a cleanliness and individual tolerance matter. Occasional removal and cleaning mitigates this.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Nickel release from titanium alloy (skin sensitization)
Titanium alloys vary in composition; high-quality alloys used in medical devices and jewelry typically contain <0.05% nickel. The brand does not disclose exact alloy composition, but no reports of contact dermatitis or allergic reactions specific to this ring are on record.
Formaldehyde / VOCs
Modern elastomers used in wearables (silicone, TPU) are generally free of formaldehyde-releasing resins. No published tests or complaints regarding off-gassing from ring straps have been identified.
Source, ATSDR ↗How is this PFAS grade calculated?
The brand's record and disclosure
The brand is owned by Huami, a major consumer wearables manufacturer. The brand has no documented major safety recalls for skin contact hazards or material leaching related to rings or bands. However, the brand provides minimal material transparency on its product pages; third-party testing or detailed material safety data sheets are not publicly available. The company has not made explicit safety certifications or disclosures regarding restricted substances on this specific model.
How it compares in its category
Smart rings typically use titanium, stainless steel, or gold alloys for the band to ensure biocompatibility and durability. Elastomer straps (silicone or TPU) are standard. The ring sits in the mainstream segment; it avoids cheaper zinc alloys or uncoated base metals that carry higher leaching risk. Competing models (Oura, Samsung Galaxy Ring) use similar material profiles with comparable or identical hazard profiles.
If you buy it
Rinse the elastomer strap regularly with soap and water to remove sweat and skin oils; this is the primary maintenance step. Do not expose the device to solvents, strong perfumes, or adhesives, which can degrade elastomer properties over time. If the strap shows visible cracking, discoloration, or tacky residue, replace it to avoid direct skin contact with any underlying hardware. The titanium alloy band itself is extremely durable and does not require special care beyond occasional cleaning with a soft cloth.
What is not known about PFAS in this product?
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- has made none
Formulations change between production runs, so check the current label. How we grade.
More water-resistant 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.