Waterproof Smartphone Cases, ranked by PFAS safety
20 products graded A to F, safest first. 4 earn a C or better and are worth buying.
Buyer’s guide
What to look for in waterproof smartphone cases, and which brands grade best and worst
Bad · Better · Best waterproof smartphone cases
The quickest read: what to skip and the top-graded picks worth buying instead.
Sea to Summit
Outdoor Products SmartPhone Watertight Phone Case
Skip until brand discloses waterproof treatment chemistry.
Pelican
Pelican Shield Phone Case for Samsung Galaxy S24 Plus
Lower concern; typical phone case with no known PFAS applications.
Worth buying graded C or better, safest first
Mophie
Juice Pack Battery Case for iPhone 15
Lithium-ion battery, plastic housing, metal contacts
No known PFAS use; battery cases rarely require fluorinated coatings.
⚠Brand says nothing about PFAS
Mophie
Juice Pack Battery Case for iPhone 15 Pro
Lithium-ion battery, plastic housing, rubber grips
Lower concern. Battery cases lack typical PFAS-prone coatings; no public disclosure available.
⚠Brand says nothing about PFAS
Pelican
Shield Phone Case for Samsung Galaxy S24 Plus
Polycarbonate shell, rubber grip
Lower concern; typical phone case with no known PFAS applications.
⚠Brand says nothing about PFAS
Pelican
iPhone 15 Pro Protector
Polypropylene and thermoplastic elastomer (phone case)
Lower concern. Standard rigid phone case materials rarely require PFAS.
⚠Brand says nothing about PFAS
Graded and flagged D and F, we’d swap these
Mophie
Juice Pack Access Hardshell Battery Case for Apple iPhone 11
Hardshell plastic casing, internal battery
Unknown plastic formulation.
⚠Undisclosed proprietary coating
Mophie
Juice Pack Battery Case for iPhone 15 Pro Max
Plastic housing, synthetic polymer battery casing, unspecified coatings
Battery case materials lack public disclosure; PFAS risk unknown.
⚠Undisclosed proprietary coating
Pelican
Shield MagSafe Case for iPhone 17 Pro Max
Proprietary thermoplastic polymer with unspecified coatings
Unknown polymer composition and coatings.
⚠Undisclosed proprietary coating
Mophie
Juice Pack Case for iPhone 17 Pro Max
Plastic housing with unspecified water-resistant coating
Unknown coating composition.
⚠Waterproof or stain-proof treatment
Mophie
Juice Pack for iPhone 16
Plastic housing, lithium battery, rubber grip, unspecified water-resistant coating
Unknown water-resistant coating; no PFAS disclosure from Mophie.
⚠Waterproof or stain-proof treatment
Mophie
Juice Pack for iPhone 16 Pro
Polymer/plastic battery casing with waterproof coating
Unknown waterproof treatment composition.
⚠Waterproof or stain-proof treatment
Mophie
Juice Pack Case for Apple iPhone 17 Pro
Polymer case with unspecified waterproof/protective coatings
Skip until mophie discloses coating composition and PFAS status.
⚠Waterproof or stain-proof treatment
Pelican
Voyager MagSafe Case for Apple iPhone 16e / iPhone 15 / iPhone 14 /
Thermoplastic elastomer (TPE) and polycarbonate with waterproof coating
Skip until Pelican discloses waterproof coating chemistry.
⚠Waterproof or stain-proof treatment
Pelican
Protector MagSafe Case iPhone 17
Thermoplastic elastomer (TPE) or polycarbonate blend with waterproofing treatment
No public PFAS disclosure.
⚠Waterproof or stain-proof treatment
Sea to Summit
TPU Guide Waterproof Case
TPU (thermoplastic polyurethane) with waterproof treatment
TPU waterproof case, treatment composition undisclosed.
⚠Waterproof or stain-proof treatment
Sea to Summit
Guide Waterproof Case
Waterproof case with unspecified water-repellent coating
Skip. Waterproof coating type undisclosed, PFAS risk unclear.
⚠Waterproof or stain-proof treatment
Sea to Summit
TPU Guide Waterproof Case for iPhone Black 358BK
TPU (thermoplastic polyurethane) with waterproof coating
Waterproof case with unspecified coating; PFAS risk unclear without disclosure.
⚠Waterproof or stain-proof treatment
Sea to Summit
TPU Guide Waterproof iPhone 5 Case Blue 358BL
TPU (thermoplastic polyurethane) with waterproof coating
TPU waterproof cases often use PFAS coatings; Sea to Summit discloses nothing.
⚠Waterproof or stain-proof treatment
Sea to Summit
TPU Guide Waterproof Case for iPhone 5
TPU (thermoplastic polyurethane) with waterproof coating
Waterproof TPU case, coating composition unclear, PFAS unknown
⚠Waterproof or stain-proof treatment
Sea to Summit
TPU Guide Waterproof Smartphone Case Large
TPU (thermoplastic polyurethane) with waterproof coating
TPU itself lower concern, but waterproof treatment unknown.
⚠Waterproof or stain-proof treatment
Sea to Summit
Outdoor Products SmartPhone Watertight Phone Case
Plastic case with waterproof sealing treatment
Skip until brand discloses waterproof treatment chemistry.
⚠Waterproof or stain-proof treatment
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