· Waterproof Fitness Trackers & Cases
Basic Smartwatch. Fitness Tracker Heart Rate Monitor and
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes plastic/elastomer body, 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
Plastic/elastomer body
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.
Volatile organic compound (VOC) off-gassing from elastomers
Silicone and TPU straps may emit trace VOCs during and immediately after manufacturing. Exposure is minimal under normal wear, but new devices should be aired out for 24 hours if odor is noticeable. This dissipates quickly and poses no chronic risk.
Skin sensitization or allergic reaction to elastomer components
A small proportion of users may experience contact dermatitis from silicone or TPU additives, particularly if the strap is worn constantly without cleaning. Risk is individual and not documented as a recurring issue for this brand.
Microbial contamination in water-exposure areas
Waterproof seals can trap moisture in recessed areas if not dried promptly after swimming. Regular cleaning and occasional removal of the band prevent bacterial or fungal growth in the seal interface.
Degradation of elastomer seals over time
Silicone and TPU straps and gaskets naturally degrade with age, UV exposure, and salt or chlorine exposure, potentially reducing waterproofing and increasing material flaking. Replacement is recommended every 12-24 months with frequent water use.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Phthalate plasticizers in elastomer formulations
No phthalate content or ban violations have been recorded for Basis smartwatches. Modern fitness tracker elastomers typically use phthalate-free plasticizers, but Basis does not publicly disclose this.
The full breakdown
What it's made of and why it matters
This Basis smartwatch uses a plastic and elastomer body construction, common for fitness wearables because these materials are lightweight, flexible, and can withstand repeated flexing and moisture exposure. Plastic bodies typically consist of acrylonitrile butadiene styrene (ABS) or polycarbonate for the case, paired with silicone or thermoplastic polyurethane (TPU) elastomers in straps and seals. Neither material class is known to leach harmful chemicals into skin under normal wear conditions, though elastomers can off-gas volatile organic compounds (VOCs) during manufacturing, which dissipate quickly after opening.
The brand's record and disclosure
Basis, now part of the Intel ecosystem, has no publicly documented chemical disclosure statements, certifications (such as Oeko-Tex or EU REACH compliance), or recalled safety incidents related to material composition in available records. The brand does not appear to have issued specific statements about flame retardants, phthalates, or other restricted substances in wearables. Without active transparency, the product is assessed on material class alone rather than brand commitment.
How it compares in its category
Fitness trackers in this price and material range are largely interchangeable in chemical risk; plastic-elastomer construction is the industry standard and carries lower inherent hazard than fabric straps (which can harbor dyes and finishes) or metal housings with plated coatings. Waterproof ratings on smartwatches rely on sealing gaskets and material integrity rather than surface coatings, so no additional chemical barrier is applied. This product sits at the category median for transparency and safety profile.
If you buy it
Store and wear the device at normal temperatures; prolonged exposure to direct heat above 60 degrees Celsius can soften elastomer components and increase VOC release, though this is unlikely during typical use. Rinse the device under cool water after swimming to remove salt, sweat, and chlorine residues that can degrade elastomer seals and integrity over time. Replace the strap if visible cracking, discoloration, or tackiness develops, as degraded elastomer can cause skin irritation. Clean the case and contact points monthly with a dry cloth to prevent moisture entrapment that can promote microbial growth in device crevices.
What we don’t know
- 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 waterproof fitness trackers & cases 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.