The Best Non-Toxic Phone Battery Cases of 2026
71 of the 75 phone battery cases PFAS Authority has graded reach its 70 point pass mark for PFAS and other toxins, 94.7% of the category, as of October 2026, and 4 score below it. The highest graded is Swatch Omega X Swatch Mission To Moon Quartz at 85 out of 100.
Every grade below is built from published materials, ingredient lists, certifications and brand disclosures, scored on one public rubric and ranked best-graded first. Each score links to the full breakdown of what earned it, and the numbers across the whole dataset are published too.
Are phone battery cases non-toxic?
71 of the 75 phone battery cases we graded clear our screen and 4 do not. Non-toxic is not a defined or regulated term, so what we can tell you is what our graders recorded. Beyond PFAS, the hazards found or left unruled-out on phone battery cases in this category are microplastics, heavy metals, undisclosed fragrance, VOCs and off-gassing, phthalates. The highest graded here is Swatch Omega X Swatch Mission To Moon Quartz at 85 out of 100.
Quick picks
Best overall
Swatch Omega X Swatch Mission To Moon QuartzHighest PFAS grade in the category
85 Excellent
No coating to fail
Motorola Moto Silicone Watch Band Sports Strap Replacement Bracelet Black 1 / 20MMNothing applied that can break down
85 Excellent
A second brand to consider
Mophie Juice Pack Battery Case for iPhone 15 ProThe best grade here from a brand other than the winner
85 Excellent
Why Swatch Omega X Swatch Mission To Moon Quartz wins, and what it beats
Every grade on this page is one sum. A category starts from a baseline, each disclosed material or coating adds risk points, and each thing the brand or a third party has published takes them away. Below is that sum for the winner, then for 1 product it beats, so you can see exactly where the 45 points between the top and the bottom of this phone battery cases ranking come from.
The winner
Made of Quartz crystal, stainless steel case, resin band.
- +15No PFAS disclosure. No public statement from the brand about PFAS in this product.
- +10Category baseline. The starting point for this type of product, before anything specific to this product is counted.
- -10Base material not linked to PFAS. The main material recorded for this product is not one associated with PFAS.
15risk points in total, which is a grade of 85
What the grade does not fix. It still carries one risk factor, No PFAS disclosure, and our graders recorded 3 other hazards on it. See the full breakdown.
What it beats, and why
What puts it behind. Waterproof / stain-resistant treatment, +35 points. Water-repellent coating treatments have historically used PFAS. The winner carries no such factor.
Made of nylon canvas with waterproof coating (unspecified).
- +35Waterproof / stain-resistant treatment
- +15No PFAS disclosure
- +10Category baseline
60risk points, a grade of 40
No product on this page was physically tested by us. Every number above comes from published materials, ingredient and coating disclosures, certifications and brand statements, scored on one public rubric. Formulations change without notice, so check the current product listing before buying.
What to watch for in phone battery cases
Beyond the PFAS grade, these are the things our graders recorded on the 75 phone battery cases in this category. We assess from materials, brand statements and published research. We do not lab-test.
- Microplastics
Plastic fragments small enough to shed from a product into food, water or air without anyone seeing it.
Found on 1 of these phone battery cases. Plausible but unconfirmed on 28 more, meaning nobody has ruled it out. EPA
- Heavy metals
Metals such as antimony, nickel and chromium migrating from a material into what touches it.
Plausible but unconfirmed on 19 more, meaning nobody has ruled it out. ATSDR
- Undisclosed fragrance
A single word on a label that can stand for dozens of undeclared ingredients, protected as trade secret.
Plausible but unconfirmed on 15 more, meaning nobody has ruled it out. FDA
- VOCs and off-gassing
Volatile compounds that evaporate out of a material at room temperature, which is what a new product smell is.
Plausible but unconfirmed on 7 more, meaning nobody has ruled it out. EPA
- Phthalates
Plasticisers that keep vinyl soft and make a scent linger, usually undeclared.
Plausible but unconfirmed on 4 more, meaning nobody has ruled it out. NIEHS
The safest phone battery cases we graded, lowest PFAS risk first
- 1
Highest grade here
- Quartz crystal, stainless steel case, resin band
- We found no PFAS statement from the brand
- Resin band VOC off-gassing
3 hazards checked on this product, all on its full breakdown.
- 2
- Lithium-ion battery, plastic housing, rubber grips
- We found no PFAS statement from the brand
- Lithium-ion battery thermal runaway
2 hazards checked on this product, all on its full breakdown.
- 3
- silicone elastomer
- We found no PFAS statement from the brand
- Bacterial or fungal growth from moisture retention
- 4
No coating to fail
Motorola
Moto Silicone Watch Band Sports Strap Replacement Bracelet Black 1 / 20MM
85ExcellentPFAS grade- Silicone elastomer (no coating disclosed)
- We found no PFAS statement from the brand
- Microplastic shedding or coating degradation over time
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon - 5
- Polypropylene and thermoplastic elastomer (phone case)
- Phthalates
2 hazards checked on this product, all on its full breakdown.
- 6
- Polycarbonate shell, rubber grip
- Polycarbonate thermal degradation and leaching
4 hazards checked on this product, all on its full breakdown.
- 7
- Stainless steel case, mineral/plastic crystal, standard watch components
- We found no PFAS statement from the brand
- Mineral crystal breakage and laceration
2 hazards checked on this product, all on its full breakdown.
- 8
- Stainless steel case, plastic/resin components, mineral glass
- We found no PFAS statement from the brand
- Plastic/resin component degradation
3 hazards checked on this product, all on its full breakdown.
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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.
All the phone battery cases that pass, side by side
Sorted by score. A higher score means lower PFAS risk. Scored against 2 hazards that apply to this category.
| # | Phone Battery Cases | Score | Rating | Made of | Key concern |
|---|---|---|---|---|---|
| 1 | Swatch Omega X Swatch Mission To Moon Quartz | 85 | Excellent | Quartz crystal, stainless steel case, resin band | Resin band VOC off-gassing |
| 2 | Mophie Juice Pack Battery Case for iPhone 15 Pro | 85 | Excellent | Lithium-ion battery, plastic housing, rubber grips | Lithium-ion battery thermal runaway |
| 3 | Motorola Moto Silicone Sport Watch Band | 85 | Excellent | silicone elastomer | Bacterial or fungal growth from moisture retention |
| 4 | Motorola Moto Silicone Watch Band Sports Strap Replacement Bracelet Black 1 / 20MM | 85 | Excellent | Silicone elastomer (no coating disclosed) | Microplastic shedding or coating degradation over time |
| 5 | Pelican iPhone 15 Pro Protector | 85 | Excellent | Polypropylene and thermoplastic elastomer (phone case) | Phthalates |
| 6 | Pelican Shield Phone Case for Samsung Galaxy S24 Plus | 85 | Excellent | Polycarbonate shell, rubber grip | Polycarbonate thermal degradation and leaching |
| 7 | Swatch Chrono 42 Quartz Watch | 85 | Excellent | Stainless steel case, mineral/plastic crystal, standard watch components | Mineral crystal breakage and laceration |
| 8 | Swatch MEDUSAE Quartz | 85 | Excellent | Stainless steel case, plastic/resin components, mineral glass | Plastic/resin component degradation |
The verdict on phone battery cases
Swatch Omega X Swatch Mission To Moon Quartz grades 85 out of 100, the highest here. It is quartz crystal, stainless steel case, resin band. We found no PFAS statement from the brand, so the grade rests on materials alone.
Choose Mophie Juice Pack Battery Case for iPhone 15 Pro instead if you want a second option at 85 out of 100, lithium-ion battery, plastic housing, rubber grips.
We hold no price data, so nothing here is a budget recommendation. Grades are model-based assessments from published materials and disclosures, not laboratory tests.
The phone battery cases we would skip
Lowest scoring in this category, worst first, with the reason.
- 40Motorola Moto Nylon Canvas Sport Waterproof Watch BandPoor
Waterproof coating leaching (undisclosed chemistry)
- 40Motorola Moto Sailcloth Quick Release Waterproof Nylon Watch BandPoor
Coating degradation and microplastic shedding
- 40Poor
What we check on phone battery cases
- Flame retardants. Chemicals added to foam and electronics, some persistent and bioaccumulative. EPA
- Lead. A heavy metal with no safe exposure level, especially for children. ATSDR
Full point-by-point rubric on the methodology page.
The phone battery cases brands we found no PFAS statement from
We found no PFAS statement from 9 of the brands here. That is our research, not proof a brand has never said anything, and it is not evidence of harm. It is why none of them score well on disclosure.
Amazfit, Mophie, Motorola, Realme, Sea to Summit, Swatch, TomTom, Withings, Xiaomi.
The brands that have published something, and what each of them actually said, are in our record of what every brand has said about PFAS.
Common questions about PFAS in phone battery cases
Are phone battery cases PFAS free?
71 of the 75 phone battery cases PFAS Authority has graded reach its 70 point pass mark for PFAS and other toxins, 94.7% of the category, as of October 2026, and 4 score below it. The highest graded is Swatch Omega X Swatch Mission To Moon Quartz at 85 out of 100. The lowest graded is Motorola Moto Nylon Canvas Sport Waterproof Watch Band at 40 out of 100.
Are phone battery cases non-toxic?
71 of the 75 phone battery cases we graded clear our screen and 4 do not. Non-toxic is not a defined or regulated term, so what we can tell you is what our graders recorded. Beyond PFAS, the hazards found or left unruled-out on phone battery cases in this category are microplastics, heavy metals, undisclosed fragrance, VOCs and off-gassing, phthalates. The highest graded here is Swatch Omega X Swatch Mission To Moon Quartz at 85 out of 100.
Which are the safest phone battery cases to buy?
On our grades, Swatch Omega X Swatch Mission To Moon Quartz at 85 out of 100, which we band as Excellent. Then Mophie Juice Pack Battery Case for iPhone 15 Pro at 85. These are model-based assessments from published materials, ingredient lists, certifications and disclosures, not laboratory tests, so treat them as the lowest risk we can evidence rather than a safety guarantee.
Which phone battery cases grade best for PFAS?
Swatch Omega X Swatch Mission To Moon Quartz, at 85 out of 100, which we band as Excellent. It is quartz crystal, stainless steel case, resin band. The runner up is Mophie Juice Pack Battery Case for iPhone 15 Pro at 85.
Which phone battery cases should I avoid?
The three lowest scoring we hold are Motorola Moto Nylon Canvas Sport Waterproof Watch Band at 40, Motorola Moto Sailcloth Quick Release Waterproof Nylon Watch Band at 40, Motorola Moto Nylon Canvas Sport Waterproof Watch Band Bracelet Strap Black / 22mm at 40. The problem with the first is that skip; waterproof coating chemistry undisclosed, PFAS risk unclear.
How can you tell if phone battery cases contain PFAS?
In this category we check for flame retardants, lead. Chemicals added to foam and electronics, some persistent and bioaccumulative. Language like stain resistant, water repellent or easy release usually means fluorinated chemistry even when PFAS is never printed on the box.
Which phone battery cases brands have not published a PFAS statement?
We found no PFAS statement from 9 of the brands we scored in this category, including Amazfit, Mophie, Motorola, Realme, Sea to Summit, Swatch. That is what our research turned up, not proof a brand has never said anything, and a missing statement is not evidence of harm. It is the reason those brands cannot score well on disclosure.
Do you lab test phone battery cases?
No. We score from published ingredient lists, materials, certifications, disclosures and third party lab results where they exist. Where a product has been independently tested we use that result and say so.
More food and water categories we have graded
Same rubric, same scale. These are the categories closest to phone battery cases.
- Best non-toxic water filters507 graded
- Best non-toxic smart rings256 graded
- Best non-toxic food packaging186 graded
- Best non-toxic lunch boxes175 graded
- Best non-toxic fast food wrappers15 graded
- Best non-toxic food storage containers15 graded
- Best non-toxic paper straws15 graded
- Best non-toxic refrigerator filters15 graded
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