Suunto · Water-Resistant Smart Rings & Bands
Suunto Silicone Band - Sleek, Comfortable, Waterproof Design orange-black buckle / 20mm
Silicone band with no water-repellent coating or treatment disclosed.
Silicone with buckle hardware. Suunto has no PFAS statement on record. The waterproofing treatment chemistry is not stated.
The better-graded swap
1-Sense Active Multi-Functional Health Tracking Smart Ring
85/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Silicone with buckle hardware
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.
Buckle hardware corrosion and nickel leaching
If buckle is nickel-plated or low-grade stainless steel, prolonged sweat or saltwater exposure could cause corrosion and nickel migration to skin. Suunto does not disclose buckle material composition publicly.
Waterproofing additive toxicity (unspecified chemistry)
Suunto lists the band as waterproof but does not disclose whether waterproofing relies on surface coatings, additives in the silicone matrix, or structural design alone. If additives are used, their safety profile is not independently verified.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Formaldehyde / VOCs
Silicone does not require formaldehyde-based dye fixatives typical of textiles. No credible reports of formaldehyde in silicone watch bands.
Source, ATSDR ↗Flame retardants
Medical-grade silicone typically contains no added flame retardants. No public evidence that Suunto bands use brominated or phosphorus-based FR additives.
Source, EPA ↗Microplastic shedding during wear or laundering
High-quality silicone bands do not fragment into microplastics under normal conditions. Degradation risk is low unless material is damaged mechanically.
The full breakdown
What it's made of and why it matters
This band is silicone elastomer, a synthetic rubber polymer that does not off-gas volatile organic compounds or leach plasticizers like phthalates or BPA. Silicone is chemically stable across normal temperature ranges and does not degrade into microplastics under typical wear. The orange-black color is achieved through standard pigmentation; silicone does not use azo dyes (a concern for textiles) because it is not a woven or knit fabric. The buckle hardware (likely stainless steel or plated zinc alloy) is the only component requiring attention.
The brand's record and disclosure
Suunto (owned by Amer Sports) does not publicly disclose material safety testing results or chemical restrictions for watch band components on their consumer-facing pages. The company has no known recalls for this specific band model related to material toxicity. Suunto has not signed the ZDHC Gateway or committed to third-party chemical management audits, making their waterproofing additive sourcing opaque. No formal certifications (Oeko-Tex, GOTS) are listed for this product.
How it compares in its category
Silicone watch bands show lower concern for phthalate and BPA exposure compared to some TPE (thermoplastic elastomer) alternatives. Unlike leather or canvas bands, silicone does not require chemical tanning agents or dye fixatives. Most major sports watch brands (Apple, Garmin, Samsung) use silicone for similar products with comparable safety profiles. The lack of transparency on waterproofing chemistry is typical for the category but not a differentiator.
If you buy it
Silicone bands require minimal maintenance, rinse with mild soap and air dry. Do not expose to prolonged direct sunlight, which can cause minor surface degradation over 1-2 years of daily wear. Inspect the buckle attachment points periodically for corrosion or loosening, especially if exposed to saltwater. Replace the band if the silicone shows visible cracking, permanent discoloration, or odor, though typical lifespan is 2-3 years of regular use.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Suunto 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.