Misfit Review, Is Misfit Non-Toxic?
Across 8 graded products, Misfit averages Excellent (85/100). On disclosure, the brand says nothing publicly about PFAS. 8 of its products grade Good or better. Grades are model-based estimates, not lab results.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Does Misfit have PFAS, by category
Worth buying from Misfit Good or better, best-graded first
Misfit
Shine Activity Tracker Black - Waterproof Sleep Monitor
Unspecified polymer housing
Waterproof seal failure and water intrusion
Waterproof rating depends on seal integrity over time. Polymer-to-polymer or…
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
Misfit
Vapor Smartwatch
Stainless steel case, elastomer band
Elastomer band degradation and particulate shedding
Elastomer bands degrade over years of UV exposure and thermal cycling; no test data on…
Heavy metals
Stainless steel contains nickel and chromium; skin contact may trigger dermatitis in…
Bacterial colonization in band seams and case crevices
Elastomer bands and sealed cases can trap sweat and bacteria if not regularly cleaned…
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
Misfit
Shine 2 Fitness + Sleep Tracker
Stainless steel case, polymer/elastomer band
Elastomer band degradation and microparticle shedding
Polymer and elastomer bands degrade over 1-3 years with UV exposure and mechanical…
Skin sensitization from band contact
Elastomer bands can trap sweat and bacteria, leading to rash or dermatitis in sensitive…
Seal degradation and internal corrosion
Waterproofing relies on seals and construction, not coatings. If seals fail over time…
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
Misfit
Misfit Flash
plastic body, glass display, silicone band
Silicone band skin sensitization
While medical-grade silicone is inert, contaminants from sweat and environmental…
Glass display breakage and sharp edges
The Misfit Flash uses a tempered glass face; user reviews document rare cases of cracked…
Activity tracker with common materials, no known PFAS risk.
⚠Brand says nothing about PFAS
Misfit
Shine Sleep/Activity Monitor
Stainless steel, polycarbonate
Stainless steel nickel content
Stainless steel typically contains 8-12% nickel to prevent rust. Individuals with nickel…
Polycarbonate stress cracking or degradation
Extended UV exposure or mechanical flexing can cause microcracking in polycarbonate over…
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
Misfit
Path Hybrid Smartwatch
Stainless steel case, elastomer band
Elastomer band degradation and skin contact
Elastomer bands in wearables can soften, crack, or become tacky after prolonged exposure…
Nickel leaching from stainless steel
Stainless steel contact with skin in the presence of sweat can release trace nickel…
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
Misfit
Flare Fitness + Sleep Tracker
Plastic casing, likely polymer
Bacterial growth in band/crevices if unmaintained
Fitness trackers worn continuously in warm, moist skin contact can harbor pathogenic…
Polymer degradation over extended use
After 2-3 years of daily wear, UV exposure, and repeated thermal stress from charging…
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
Misfit
Vapor Mis7000 50m Jet Black Case W/ Black Sport Strap
Plastic case, elastomer sport strap
Elastomer strap composition and degradation
Sport strap material (silicone, TPE, or rubber) is not specified by Misfit. Standard…
Bacterial growth on elastomer strap if unmaintained
Elastomer sport straps trap sweat and moisture in surface pores, creating conditions for…
Case degradation under sustained heat or UV
Prolonged exposure to direct sunlight or hot environments may cause plastic embrittlement…
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
Misfit and PFAS, common questions
- Does Misfit have PFAS?
- We graded 8 Misfit products, averaging Excellent (85/100). 8 grade Good or better. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Misfit non-toxic?
- Misfit Shine Activity Tracker Black - Waterproof Sleep Monitor is the highest-graded Misfit product we have scored, at 85/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Misfit products are lower concern for PFAS?
- The highest-graded Misfit products we have scored are Misfit Shine Activity Tracker Black - Waterproof Sleep Monitor, Misfit Vapor Smartwatch, Misfit Shine 2 Fitness + Sleep Tracker. That is our model-based estimate from materials and public disclosure, not a lab test.
Every grade uses the same public rubric. How grades work →