Epson · Waterproof Fitness Trackers & Cases
Epson Pulsense Ps-100 Heart Rate Monitor & Activity Tracker
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes rubber/elastomer strap, plastic/resin casing, 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
Rubber/elastomer strap, plastic/resin casing
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.
Elastomer plasticizer leaching
Rubber straps commonly contain residual plasticizers (phthalates, adipates) that can migrate to skin with prolonged wear, sweat, or heat exposure. The PS-100 brand and material source are not disclosed, so leaching risk cannot be ruled out, though it is low for short-term wear.
VOC off-gassing from plastic housing
Newly manufactured injection-molded plastic cases often emit trace VOCs (solvents, monomers) for days to weeks. Epson does not specify resin type or curing protocols, so off-gassing profile is unknown. Exposure is typically minimal and resolves quickly with ventilation.
Elastomer polymer degradation over time
Extended UV, heat, or mechanical stress can break down rubber straps, releasing degradation byproducts or creating small particles. No durability or degradation testing data is available for this specific strap formulation. Risk increases with years of continuous wear in hot or sunny conditions.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Allergen contact from strap or casing
No documented cases of contact dermatitis or allergic reaction to the PS-100 strap or case material have been reported. Individual sensitivities to rubber or plastic additives are rare but possible; discontinue wear if rash or irritation develops.
Waterproofing seal degradation
The device is rated IP67 (waterproof to 1 meter for 30 minutes). No reports of seal failure or water ingress are on record. Seals can degrade with age or if the device is subjected to thermal cycling; replacement is not user-serviceable.
The full breakdown
What it's made of and why it matters
The Pulsense PS-100 uses an elastomer (rubber) strap and plastic/resin casing typical of mass-market fitness trackers. Elastomers can leach plasticizers or residual monomers with skin contact over time, particularly if worn continuously in warm conditions. The plastic housing is inert once cured but may off-gas volatile organic compounds (VOCs) minimally during the first weeks of use. No specialized coatings are documented, so the waterproofing relies on the material density and sealed construction rather than applied treatments.
The brand's record and disclosure
Epson has not published explicit PFAS or chemical transparency statements for this wearable line. The company is primarily known for imaging and industrial electronics; fitness tracker safety transparency is not a documented strength. No recalls or health complaints specific to the PS-100 strap or casing are on record. Epson's silence on materials chemistry is typical for the category but limits independent verification of elastomer sourcing and purity standards.
How it compares in its category
The PS-100 sits in the mid-tier fitness tracker segment, where rubber straps and injection-molded plastic cases are industry standard. Compared to premium alternatives (e.g., some Apple or Garmin models), disclosure of elastomer composition and testing is equally sparse. Most competitors at this price point lack third-party chemical certifications. The design and materials are unremarkable for safety within the category, neither worse nor demonstrably better than equivalent devices.
If you buy it
Rinse the strap weekly with soap and water, especially if worn during exercise or in warm climates, to minimize buildup of sweat and potential leachate concentration. Avoid prolonged exposure to direct sunlight or heat above 50 degrees Celsius, which can accelerate elastomer degradation. Replace the strap if it becomes sticky, discolored, or develops an unusual odor, as these signs indicate polymer breakdown. Store unworn in a cool, dry place; do not seal in airtight plastic bags, which can trap off-gassing compounds.
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
- Epson 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.