Misfit · Waterproof Fitness Trackers & Cases
Misfit Shine 2 Fitness + Sleep Tracker
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes stainless steel case, polymer/elastomer band, 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
Stainless steel case, polymer/elastomer band
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 band degradation and microparticle shedding
Polymer and elastomer bands degrade over 1-3 years with UV exposure and mechanical stress. Visible cracks or surface breakdown indicate ongoing shedding; no contamination data exists for this specific model, but risk is higher in prolonged outdoor use or chlorinated water.
Skin sensitization from band contact
Elastomer bands can trap sweat and bacteria, leading to rash or dermatitis in sensitive individuals. The risk is material-dependent and unaffected by brand; frequent washing and air-drying reduce incidence.
Seal degradation and internal corrosion
Waterproofing relies on seals and construction, not coatings. If seals fail over time, stainless steel internals can corrode and expose electronics; this is a durability issue rather than an acute chemical hazard.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Lead
No testing or recalls exist for the Shine 2. The device is not intended for ingestion or direct mouth contact, and the sealed case restricts access to circuit boards. Risk is negligible under normal use.
Source, ATSDR ↗Formaldehyde / VOCs
Elastomer band dyes are not documented in the available product specifications. No color-related allergic reactions or safety alerts have been reported for this model in public records.
Source, ATSDR ↗The full breakdown
What it's made of and why it matters
The Shine 2 combines a stainless steel case with a polymer or elastomer wristband. Stainless steel is inert and does not leach metals under normal wear conditions, showing lower concern for skin contact over extended wear. The elastomer band is the primary exposure route; these materials can shed microparticles over time with friction and UV exposure, though ingestion risk during normal use is negligible. No coating or surface treatment is documented on the case, eliminating concerns about flaking glazes or Teflon-type coating-based water repellents.
The brand's record and disclosure
Misfit (acquired by Fossil in 2015) has not issued a public PFAS statement or sustainability disclosure specific to this tracker. The brand maintains a relatively quiet stance on chemical transparency compared to larger consumer electronics peers. No product recalls related to chemical hazards have been recorded for the Shine 2 in public databases. Overall transparency is below industry leaders like Garmin or Apple, but no active controversies are documented.
How it compares in its category
Fitness trackers in this class typically use similar stainless steel or aluminum housings paired with silicone or TPU bands. The Shine 2 avoids aluminum (which can leach in acidic conditions) and uses inert metals, placing it in the lower concern subset of the category. Competing devices often add Teflon-family coating or silicone coatings for water resistance; the Shine 2 relies on sealed construction and elastomer materials, which reduces coating-related leaching hazards. Disclosure practices are comparable to mid-market competitors but lag premium brands.
If you buy it
Rinse the band regularly with fresh water after sweat or saltwater exposure to reduce skin irritation from salt accumulation. Do not expose to prolonged direct heat (>60 degrees Celsius) as elastomer bands can degrade and shed particles. Replace the band if visible cracking or discoloration develops, as this signals material breakdown. Store in a dry place when not in use to minimize mold growth on the band material.
What we don’t know
- Basis
- Model estimate, 42% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Misfit 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.