Do Misfit waterproof fitness trackers & cases have PFAS?
Misfit waterproof fitness trackers & cases average 85 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Misfit waterproof fitness trackers & cases graded as of November 2026, level with the 85 out of 100 median for the 24 other waterproof fitness trackers & cases brands graded alongside it.
Misfit waterproof fitness trackers & cases average Excellent on our four-band scale. 8 of the 8 we graded are worth buying. That is above 60% of the waterproof fitness trackers & cases brands we grade.
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.
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
Misfit waterproof fitness trackers & cases worth buying Good or better, best-graded first
- plastic body, glass display, silicone band
- We found no PFAS statement from the brand
- Silicone band skin sensitization. While medical-grade silicone is inert, contaminants from sweat and…
2 hazards checked on this product, all on its full breakdown.
- Plastic case, elastomer sport strap
- We found no PFAS statement from the brand
- Elastomer strap composition and degradation. Sport strap material (silicone, TPE, or rubber) is not specified…
3 hazards checked on this product, all on its full breakdown.
- Stainless steel case, elastomer band
- We found no PFAS statement from the brand
- Elastomer band degradation and particulate shedding. Elastomer bands degrade over years of UV exposure and…
3 hazards checked on this product, all on its full breakdown.
- Stainless steel case, polymer/elastomer band
- We found no PFAS statement from the brand
- Elastomer band degradation and microparticle shedding. Polymer and elastomer bands degrade over 1-3 years…
3 hazards checked on this product, all on its full breakdown.
- Plastic casing, likely polymer
- We found no PFAS statement from the brand
- Bacterial growth in band/crevices if unmaintained. Fitness trackers worn continuously in warm, moist skin…
2 hazards checked on this product, all on its full breakdown.
- Stainless steel case, elastomer band
- We found no PFAS statement from the brand
- Elastomer band degradation and skin contact. Elastomer bands in wearables can soften, crack, or become tacky…
2 hazards checked on this product, all on its full breakdown.
- Unspecified polymer housing
- We found no PFAS statement from the brand
- Waterproof seal failure and water intrusion. Waterproof rating depends on seal integrity over time.…
- Stainless steel, polycarbonate
- We found no PFAS statement from the brand
- Stainless steel nickel content. Stainless steel typically contains 8-12% nickel to prevent rust. Individuals…
2 hazards checked on this product, all on its full breakdown.
The same question, asked of the other waterproof fitness trackers & cases brands
Best average grade first. Misfit averages 85.
See every Misfit product we grade on the Misfit brand page, or the full waterproof fitness trackers & cases ranking.