Does Apple waterproof fitness trackers & cases have PFAS?
We graded 11 Apple waterproof fitness trackers & cases products, averaging Good (56/100). 4 of them grade Good or better. Against the other 25 waterproof fitness trackers & cases brands we grade, where the middle brand sits at 85/100, Apple is worse than typical.
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.
Apple waterproof fitness trackers & cases worth buying Good or better, best-graded first
Apple
Watch Series 6 GPS Aluminum Case
Aluminum case
Nickel release (contact dermatitis)
7000-series aluminum alloys may contain trace nickel as an alloying element. People with…
Anodize coating degradation
Deep scratches or cracks in the anodized layer can expose bare aluminum underneath. This…
Band material hazards (separate from case)
Some users have reported skin irritation from fluoroelastomer or silicone sport bands…
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
Apple
Watch Series 10 GPS 46mm Aluminum Case Sport
Aluminum case, glass/sapphire display, sports band polymer
PFAS
Sport band and case adhesives may contain fluorinated compounds for water resistance…
Elastomer band degradation and micro-particle release
Silicone and fluoroelastomer bands degrade over years with UV and sweat exposure…
No public PFAS data available; moderate uncertainty persists.
⚠Brand says nothing about PFAS
Apple
Waterproof Rugged Apple Watch Band + Case For Apple Series
Silicone/elastomer band with Teflon-family coating-based
Elastomer degradation and microparticle shedding
Prolonged UV exposure, sweat chemistry, and mechanical stress can cause silicone to…
Allergic contact dermatitis from elastomer additives
Silicone bands may contain trace additives (colorants, curing agents, antioxidants) that…
Moisture trapping and bacterial/fungal growth
Silicone's nonporous surface can retain water in seams and under the band if not dried…
Lead
The case gasket and band interface rely on elastomer integrity; degradation over 2-3…
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
Apple
SaharaCase Silicone Wrist Band for Apple AirTag
Silicone wrist band
Bacterial colonization and biofilm
Silicone's hydrophobic surface can harbor skin bacteria and odor-causing microbes if not…
Allergic contact dermatitis from additives
Silicone elastomers often contain uncrosslinked oligomers or processing aids that can…
Low risk. Silicone bands rarely receive PFAS treatment.
⚠Brand says nothing about PFAS
Graded and flagged Poor and Bad, we’d swap these
Apple
Watch SE 3 GPS 44mm Aluminum Case Sport Band
Aluminum case, fluoroelastomer sport band, ion-x glass
PFAS
IP67 water resistance likely achieved via PFAS-based hydrophobic treatments on internal…
Ion-X glass fragmentation
Ion-X glass is more scratch-prone and shatter-prone than sapphire or Gorilla Glass; if…
Water resistance method unknown; Apple silent on PFAS.
⚠Waterproof or stain-proof treatment
Apple
Watch Ultra 3 GPS + Cellular 49mm Titanium Case
Titanium case, fluoroelastomer seals, composite band
PFAS
Waterproofing seals almost certainly contain some fluorinated polymers; Apple has not…
Elastomer degradation over time
Repeated thermal cycling, UV exposure, and salt or chlorine contact can cause…
Nickel or other trace metals in titanium alloy
Titanium alloys used in watches (often Ti-6Al-4V) may contain small amounts of vanadium…
Titanium may lower concern; waterproofing formula remains undisclosed.
⚠Waterproof or stain-proof treatment
Apple
Watch Series 11 GPS 42mm Aluminum Case Sport Band
Aluminum case, fluoroelastomer sport band with water-resistant treatment
Fluoroelastomer degradation and VOC release
New fluoroelastomer bands may release trace volatile organic compounds during first…
Bacterial or fungal growth under band
Any wearable band traps moisture and sweat against skin, creating conditions for…
PFAS
Fluorinated water-repellent treatments on bands commonly contain PFAS; Apple does not…
Likely lower concern, but Apple discloses no PFAS content.
⚠Waterproof or stain-proof treatment
Apple
Watch SE 2nd 40mm Sport
Aluminum case, Ion-X glass, fluoroelastomer sport band
Fluoroelastomer band dermal sensitization
Fluoroelastomer is biocompatible and FDA-cleared for medical devices, but individual…
PFAS
The 50m water resistance rating suggests a hydrophobic coating is applied to electronics…
Waterproof electronics; PFAS in coatings unconfirmed without disclosure.
⚠Waterproof or stain-proof treatment
Apple
Watch Series 9 GPS + Cellular Aluminum Case
Aluminum case, ion-X glass, fluoroelastomer seals, proprietary coatings
PFAS
Fluoroelastomer seals and unnamed proprietary coatings used for 50-meter water resistance…
Fluoroelastomer seal degradation and microfragment release
Fluoroelastomer degrades over 2-3 years with UV and thermal cycling; breakdown products…
Brand transparency and recall responsiveness
Apple's historical pattern of minimal material disclosure and slow public response to…
Waterproofing methods and PFAS content remain unknown.
⚠Waterproof or stain-proof treatment
Apple
Watch Series 7 Aluminum Case Sport Band
Aluminum case, fluoroelastomer Sport Band
Fluoroelastomer band degradation and skin contact
Long-term UV exposure and sweat may degrade fluoroelastomer surface; no established…
Anodized coating degradation
Scratching through the anodized layer exposes aluminum underneath; shallow scratches are…
PFAS
Apple does not disclose whether waterproof seals, gaskets, or adhesives contain PFAS.…
Waterproof wearable with no PFAS information from Apple.
⚠Waterproof or stain-proof treatment
Apple
Watch Series 2 Waterproof Case with Band
Aluminum, stainless steel, fluoroelastomer seals with unspecified waterproof treatment
Undisclosed waterproof treatment chemistry
Apple has not revealed what chemical coating or treatment is used to render the case…
Fluoroelastomer seal degradation
Fluoroelastomer seals degrade with temperature, sunlight, and repeated flexing over 2-5…
Water contamination if seals fail
If the case seals degrade or are damaged, internal moisture can accumulate and corrode…
Skip this. Unknown waterproof treatment chemistry must be disclosed.
⚠Waterproof or stain-proof treatment
Better waterproof fitness trackers & cases from other brands
Graded higher than the Apple average of 56.
TomTom
Water Resistant Watch Model 8R500 - Men
On watch case and band
Polymer case and band degradation
Limited concern
Bacterial or mold growth in seals and band
Limited concern
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
TomTom
Tom Tom Sport Runner Wrist Watch Model 8rs00 Water Resistant Wide Band
Plastic/elastomer band
Coating degradation and peeling
Limited concern
Bacterial or mold growth in band seams
Limited concern
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
TomTom
Black Tomtom Water Resistant Watch Model 8rs00 With Wristband
Plastic/elastomer wristband, exact
Elastomer degradation and off-gassing
Limited concern
Bacterial growth in seals and crevices
Limited concern
Contact dermatitis from additives or microbial buildup
Limited concern
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
See every Apple product we grade on the Apple brand page, or the full waterproof fitness trackers & cases ranking.