Polar · Water-Resistant Smart Rings & Bands
Polar Silicone Watch Bands for Polar Smartwatch Waterproof Strap Camo Blue / 20mm
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes silicone, 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
Silicone
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.
Bacterial/microbial growth
Silicone surfaces can harbor bacteria if not cleaned regularly, particularly in the sealed seam between band and watch case. This is a maintenance issue rather than a material defect.
Silicone degradation and particle release
Prolonged UV exposure, sweat, or physical wear can cause micro-cracks in silicone over 2-3 years, potentially releasing small degradation particles. This is age-related and not an acute hazard but a reason to replace worn bands.
Adhesive or seal integrity failure
The waterproof rating depends on seals and material integrity, not a chemical coating. Prolonged chlorine or saltwater exposure may degrade adhesives over time, compromising water resistance.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Heavy metals
Inorganic pigments in silicone are typically iron oxides or titanium dioxide, which do not leach into skin. No recalls or testing reports for Polar silicone bands exist in public records.
Source, FDA ↗Allergic contact dermatitis (rare)
Medical-grade silicone is hypoallergenic for most users. Polar does not disclose additives in their silicone compound, but allergic reactions to high-quality silicone bands are extremely rare and unrecorded for this brand.
The full breakdown
What it's made of and why it matters
This is a silicone elastomer strap, a synthetic rubber polymer that is inert and does not leach into skin under normal wear. Silicone does not contain BPA, phthalates, or volatile organic compounds that migrate at body temperature. The camo blue colorant is likely an inorganic or organic pigment mixed into the silicone matrix during manufacture; no dyes or finishes are described that would introduce heavy metals or azo dyes.
The brand's record and disclosure
Polar is a Finnish sports technology company with no public history of chemical safety controversies or recalls linked to wearable materials. The brand does not publish PFAS statements or Material Safety Data Sheets for consumer bands, which is typical for the sports watch category. No independent testing of Polar bands for restricted substances has been publicly disclosed.
How it compares in its category
Silicone watch bands show lower concern in the wearable strap category because the material is chemically stable and approved for prolonged skin contact in medical and food-grade applications. Competing elastomer options (rubber, thermoplastic polyurethane) carry similar safety profiles but may have stricter manufacturing controls in some brands. Leather and fabric straps introduce tanning chemicals or dye hazards that silicone avoids.
If you buy it
Rinse the band regularly with soap and water, especially after sweat or saltwater exposure, to prevent bacterial buildup in the band-watch interface. Inspect periodically for cracks, peeling, or hardening; silicone can degrade over 2-3 years of daily wear and should be replaced if integrity is compromised. Avoid prolonged exposure to extreme heat (above 60 C) or direct flame, as silicone will soften and may off-gas at high temperatures. Store in a cool, dry place when not in use.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Polar 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.