Is Whoop PFAS-free?
Across 8 graded products, Whoop averages F (51/100). On disclosure, the brand says nothing publicly about PFAS. 2 of its products grade C or better. Grades are model-based estimates, not lab results.
Worth buying from Whoop C or better, safest first
Whoop
Peak Health and Fitness Wearable 12-Month Membership
silicone band, electronics, stainless steel hardware
Wearable membership with minimal PFAS risk indicators.
⚠Brand says nothing about PFAS
Whoop
MG Navigator Band
Elastomer band (silicone-based or similar)
Lower concern fitness band, but brand silence on materials limits certainty.
⚠Brand says nothing about PFAS
Graded and flagged D and F, we’d swap these
Whoop
One 5.0 Health and Fitness Tracker
Silicone band, plastic/elastomer housing, unknown waterproof coatings
Waterproof wearable with undisclosed coatings; PFAS content unclear.
⚠Waterproof or stain-proof treatment
Whoop
Life MG Health and Fitness Tracker
Silicone band, electronics, waterproof coating
No public PFAS disclosure.
⚠Waterproof or stain-proof treatment
Whoop
4.0 Health & Activity Tracker
Silicone band, plastic case, waterproof treatment unspecified
Waterproof wearable, unspecified treatment composition raises concern.
⚠Waterproof or stain-proof treatment
Whoop
Peak 5.0, 12-Month Membership, Health and Fitness Wearable, 24/7 Activity and Sleep Tracker with Heart Rate
Silicone band with plastic/elastomer body, waterproofed
Wearable lacks material transparency; waterproofing source unclear.
⚠Waterproof or stain-proof treatment
Whoop
4.0 Life Smartwatch
silicone band, unknown waterproof coating on electronics
Skip until Whoop discloses waterproof treatment composition.
⚠Waterproof or stain-proof treatment
Whoop
Peak 5.0 Activity Tracker
Silicone band, electronic components, sealed polymer casing
Insufficient transparency.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →