Waterproof Fitness Tracker Cases, ranked by PFAS safety
44 products graded A to F, safest first. 19 earn a C or better and are worth buying.
Bad · Better · Best waterproof fitness tracker cases
The quickest read: what to skip and the top-graded picks worth buying instead.
i-Blason
i-Blason Armorbox for Apple Watch Series 10 46mm Case with Band Multi-use Military Protection Sport
Skip until brand discloses waterproof treatment chemistry.
Samsung
Silicone Bracelet Full Cover for Samsung Galaxy SmartTag 2 Watch Case with Wristband
Lower concern, but Samsung discloses nothing about PFAS risk.
Worth buying graded C or better, safest first
Samsung
Silicone Bracelet Full Cover for Samsung Galaxy SmartTag 2 Watch Case with Wristband
Silicone wristband and cover
Lower concern, but Samsung discloses nothing about PFAS risk.
⚠Brand says nothing about PFAS
Fitbit
Fintie Bands for Fitbit Versa 4/3/2/1/Versa Lite/Fitbit Sense 2/Sense
Silicone and stainless steel band
Lower concern. Silicone bands rarely require PFAS-based treatments.
⚠Brand says nothing about PFAS
Fitbit
StrapsCo Active Protective Case Strap for Fitbit Charge 5
silicone or elastomer strap, likely no intentional PFAS coating
Lower concern. Silicone strap unlikely to contain PFAS, but brand offers no disclosure.
⚠Brand says nothing about PFAS
Fitbit
SUPCASE Unicorn Beetle Pro Series Design Replacement Bands for Fitbit Inspire & Fitbit Inspire
Silicone or elastomer band (unspecified polymer)
Lower concern; silicone bands rarely use PFAS, but material unconfirmed.
⚠Brand says nothing about PFAS
Fitbit
Supcase Rugged Buckle Case for Fitbit Ionic,Strap Replacement Bands for Fitbit Ionic Smartwatch
Silicone, elastomer, stainless steel bands
Lower concern. Silicone and stainless steel bands unlikely PFAS sources.
⚠Brand says nothing about PFAS
Fitbit
North Street Watch Co. Rugged Rubber Case Strap for Fitbit Charge 6
rubber strap
Rubber strap lower concern.
⚠Brand says nothing about PFAS
Samsung
Food-grade Silicone Wristband for Samsung Galaxy SmartTag2 2023
food-grade silicone
Lower concern. Food-grade silicone wristbands typically PFAS-free.
⚠Brand says nothing about PFAS
X-Doria
Field Band 38 Mm Apple Watch Compatible Nylon Wristband
Nylon wristband, untreated
Lower concern. Bare nylon is inherently PFAS-free.
⚠Brand says nothing about PFAS
X-Doria
Apple Watch Replacement Band42mm Compatiblex-doria Olive
Silicone or elastomer band, uncoated
Lower concern. Silicone bands rarely use PFAS, but no brand transparency.
⚠Brand says nothing about PFAS
X-Doria
,white Field Band Nylon Wristband 42mm Apple Watch
Nylon wristband
Lower concern. Bare nylon band unlikely to contain PFAS.
⚠Brand says nothing about PFAS
Garmin
UltraFit Nylon Strap
Nylon textile strap
Lower concern. Plain nylon strap unlikely to contain PFAS without water-repellent coating treatment.
⚠Brand says nothing about PFAS
Garmin
QuickFit 20mm Band
silicone or fluoroelastomer band
Silicone band carries lower concern.
⚠Brand says nothing about PFAS
Apple
SaharaCase Silicone Wrist Band for Apple AirTag
Silicone wrist band
Lower PFAS concern. Silicone bands rarely treated with PFAS.
⚠Brand says nothing about PFAS
Apple
Gladius Tactical Silicone Band + Case for Apple Watch 1-6/SE/SE3
silicone band and case
Silicone is inherently PFAS-free.
⚠Brand says nothing about PFAS
i-Blason
Phone and Wristlet Straps
Fabric straps, likely polyester or cotton blend
Lower concern; typical fabric straps unlikely to contain PFAS.
⚠Brand says nothing about PFAS
i-Blason
Silicone Breathable Apple Watch Band with Tempered Glass Screen Protector
Silicone band, tempered glass screen protector
Lower concern. Silicone and glass are inherently PFAS-free materials.
⚠Brand says nothing about PFAS
i-Blason
Armorbox TPU Watch Band with Tempered Glass Screen Protector (2
TPU (thermoplastic polyurethane) watch band, tempered glass protector
Lower concern; TPU and glass are inherently PFAS-free materials.
⚠Brand says nothing about PFAS
i-Blason
Band Apple Watch 38 mm Stylish Sporty Protective Bumper Case with Adjustable Strap Bands for Apple Watch Series
silicone, rubber, TPU bumper case and fabric/elastomer watch bands
Lower concern; silicone and TPU bumpers typically PFAS-free, no risk signals.
⚠Brand says nothing about PFAS
i-Blason
Cosmo Luxe Series Case for Apple Watch Series 7/6/se/5/4
Thermoplastic polyurethane (TPU), polycarbonate blend
Lower concern. Rigid elastomer case unlikely to use PFAS.
⚠Brand says nothing about PFAS
Graded and flagged D and F, we’d swap these
X-Doria
Raptic Citizen Stainless Steel Magnetic Closure Apple Watch Band
Stainless steel band, magnetic closure
Lower concern. Stainless steel inherently PFAS-free, no water-repellent coating treatment.
⚠Stain-resistant finish
X-Doria
Classic Plus Stainless Steel Magnetic Closure WatchBand for Apple Watch
Stainless steel, magnetic closure
Lower PFAS concern; stainless steel watch band has minimal chemical risk.
⚠Stain-resistant finish
i-Blason
Apple Watch Ultra Armorbox Case
TPU, polycarbonate, rubber blend
No PFAS data available. Unverified protective case product.
⚠Undisclosed proprietary coating
i-Blason
Apple Watch 40/41mm | Cosmo Luxe Case -Ocean Blue
TPU polymer case with unspecified coatings
Unknown coating composition; no PFAS disclosure from brand.
⚠Undisclosed proprietary coating
Samsung
Husxh TPU Transparent Case Cover+Strap Sweatproof Integrated Case + Band Waterproof Wristband Bracelet Comfortable for S
TPU plastic with waterproof/sweatproof coating
TPU watch case with undisclosed waterproof treatment; skip if PFAS-concerned.
⚠Waterproof or stain-proof treatment
Garmin
Garmin Band
elastomer/silicone band with waterproof coating
Likely lower concern, but Garmin discloses nothing about PFAS.
⚠Waterproof or stain-proof treatment
Garmin
Dive Band Kit
Elastomer/silicone band with likely water-repellent coating treatment
Dive bands likely water-resistant; Garmin discloses nothing on PFAS.
⚠Waterproof or stain-proof treatment
Fitbit
Charge 5 Unicorn Beetle PRO Rugged Case and Band
Silicone/TPU band, polycarbonate case with waterproof coating
Rugged case likely has water-resistant treatment; Fitbit discloses nothing about PFAS.
⚠Waterproof or stain-proof treatment
Fitbit
Google Fitbit Air Active Band
elastomer band, likely rubber or silicone with water-resistant treatment
Limited public PFAS data.
⚠Waterproof or stain-proof treatment
Fitbit
Fintie Bands Protective Case Strap Rugged Sport Band
Silicone, elastomer, and fabric composite with water-resistant treatment
Sport band likely has water-resistant coating; PFAS undisclosed by brand.
⚠Waterproof or stain-proof treatment
Samsung
For Samsung Galaxy Watch Ultra 47mm Unisex Sport Waterproof Tpu Watch
TPU polymer with waterproof treatment
Skip; waterproof smartwatch band likely treated with undisclosed coatings.
⚠Waterproof or stain-proof treatment
Samsung
For Samsung Galaxy SmartTag Silicone Life Waterproof Strap Children Wristband Cover(Black)
Silicone with waterproof treatment
Silicone lower-concern choice, but waterproofing method undisclosed.
⚠Waterproof or stain-proof treatment
Samsung
For Samsung Smart Tag 2 Bracelet Kids, 2 Pack Waterproof Black/blue
Polymer/elastomer band, waterproof treatment unspecified
Skip; waterproof claim without PFAS disclosure raises concern.
⚠Waterproof or stain-proof treatment
Samsung
Goton 3 In 1 Waterproof Case and Band for Samsung Galaxy Watch
Silicone case, treated for waterproofing, unspecified coating
Waterproof smartwatch case with undisclosed treatment composition.
⚠Waterproof or stain-proof treatment
Samsung
2 Pack Waterproof Compatible With Samsung Galaxy Smarttag2 Holder, Tpu
TPU (thermoplastic polyurethane) with unspecified waterproof treatment
Skip until Samsung discloses waterproof treatment composition.
⚠Waterproof or stain-proof treatment
X-Doria
Women's X-Doria Field Band Apple Watch
Silicone or fluoroelastomer band with waterproof coating
Unknown waterproof treatment; X-Doria silent on PFAS disclosure.
⚠Waterproof or stain-proof treatment
X-Doria
Action Band for Apple Watch
Silicone/elastomer band with likely water-resistant treatment
Limited public data. Band material likely silicone; waterproofing unspecified.
⚠Waterproof or stain-proof treatment
X-Doria
Field Band For Apple Watch 38mm -navy And White
elastomer band, likely silicone with water-resistant treatment
Unknown water-resistant coating.
⚠Waterproof or stain-proof treatment
Apple
Waterproof Rugged Apple Watch Band + Case For Apple Series
Silicone/elastomer band with Teflon-family coating-based waterproof coating (likely)
Skip. Waterproof coating likely contains PFAS, no transparency.
⚠Waterproof or stain-proof treatment
Apple
Nogis Waterproof AirTag Bracelet
Silicone/elastomer band with waterproof coating, unknown water-repellent coating treatment
Skip until Apple discloses waterproof coating chemistry.
⚠Waterproof or stain-proof treatment
Apple
Watch Series 2 Waterproof Case with Band
Aluminum, stainless steel, fluoroelastomer seals with unspecified waterproof treatment
Skip until Apple discloses waterproof treatment chemistry.
⚠Waterproof or stain-proof treatment
Apple
Nogis Kids Waterproof Airtag Bracelet
Silicone elastomer bracelet with unspecified waterproof coating
Unknown waterproof treatment raises PFAS concern, insufficient disclosure.
⚠Waterproof or stain-proof treatment
Apple
Watch Series Case Thin Fit 360 Waterproof Ring
Unspecified polymer/elastomer with waterproof coating
Skip. Waterproof coating materials undisclosed by Apple.
⚠Waterproof or stain-proof treatment
Apple
Waterproof Band Strap With Case For Apple Watch Series 4/5/6/7/8/9/se
Silicone or fluoroelastomer strap, unspecified waterproof coating
Unknown waterproof coating; Apple provides no PFAS disclosure.
⚠Waterproof or stain-proof treatment
i-Blason
Armorbox for Apple Watch Series 10 46mm Case with Band Multi-use Military Protection Sport
Silicone/thermoplastic blend with unspecified waterproof coating
Skip until brand discloses waterproof treatment chemistry.
⚠Waterproof or stain-proof treatment
Get the safe list, free
The products we score each week, and the safest alternative in every category.
No spam. Unsubscribe anytime.