Fitbit · Waterproof Smartwatches & Fitness Trackers
Google Fitbit Air Screenless Health & Fitness Tracker
Waterproof wearable, no PFAS disclosure. Higher uncertainty.
Fitbit does not disclose waterproofing chemistry or PFAS practices for this tracker. Waterproof coatings often use PFAS; lack of transparency warrants caution.
The safe swap
Swatch
Swatch Chrono 42 Quartz Watch
85/100 safety
Same rubric that flunked this product. The swap earned its B.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Plastic housing, elastomer band, waterproof coating unknown
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
The Fitbit Air uses plastic housing (likely polycarbonate or ABS blend) with an elastomer band, typical for fitness trackers. The waterproof coating is unspecified by Fitbit, creating uncertainty about whether water resistance relies on PFAS-based Teflon-family coating or alternative hydrophobic treatments. Elastomer bands can leach plasticizers over time, especially with sweat, heat, and UV exposure from prolonged skin contact. The screenless design reduces complexity but does not eliminate polymer degradation pathways.
The brand's record and disclosure
Google/Fitbit has provided no public commitment to PFAS elimination in wearables and does not disclose waterproofing chemistry. The company has not faced major recalls related to Fitbit wearables for hazardous leaching, but transparency on material composition and finishes remains limited. Fitbit's parent company Google has made some sustainability pledges but has not specifically addressed PFAS in consumer electronics or wearables. This silence is material; competitors like Garmin and Apple have begun disclosing or transitioning away from PFAS-based coatings.
How it compares in its category
The Fitbit Air sits in the mainstream budget-to-mid-range fitness tracker market alongside devices from Garmin, Apple, and Amazfit. Most competitors use similar plastic/elastomer construction and do not publicly disclose waterproofing chemistry, making direct comparison difficult. However, some rivals have begun proactive material transparency or third-party testing; Fitbit's silence places it in a middle position of undefined risk rather than leading or lagging significantly. Wearables as a category have not faced widespread regulatory scrutiny for leaching hazards, reducing relative pressure on Fitbit specifically.
If you buy it
Rotate elastomer bands regularly to reduce prolonged skin contact and sweating into the same material; wash the band weekly with mild soap and allow to air dry fully before rewearing. Avoid storing in direct sunlight or high heat for extended periods, as UV and thermal stress accelerate polymer degradation and potential plasticizer leaching. Replace the band if it shows visible cracking, discoloration, or odor; replacement bands are readily available. Rinse the device after swimming or heavy sweating to remove salt and chlorine, which can degrade coatings and accelerate elastomer breakdown.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Elastomer band plasticizer leaching
Elastomer bands commonly contain phthalates or alternative plasticizers that can migrate into skin during prolonged wear, especially under heat and moisture from sweat. No specific testing of Fitbit Air bands has been published, but this is an inherent material risk for wearables worn 24/7.
Waterproof coating composition unknown (PFAS risk surrogate)
Fitbit does not disclose whether the waterproof finish uses PFAS-based Teflon-family coating (perfluorinated compounds) or non-PFAS alternatives. Waterproof wearables historically rely on PFAS; absence of disclosure should be treated as higher uncertainty, not assurance.
Plastic housing leaching (BPA, BPS, or other bisphenols)
Modern polycarbonate and ABS housings are often BPA-free under regulation, but no specific certification or test report for Fitbit Air has been published. Direct skin contact is minimal (arm wear), reducing ingestion risk, but degraded coatings could increase leaching.
Coating degradation over time
Fitbit wearables accumulate user reports of coating wear, peeling, or discoloration after 12-24 months of heavy use. As coatings break down, both waterproofing and containment of any underlying substances may fail, and micro-flaking could pose inhalation or ingestion risk if device is worn near mouth or handled carelessly.
Battery or circuit board outgassing (minor VOC risk)
Lithium-ion batteries and circuit boards in fitness trackers can emit volatile organic compounds (VOCs) in rare cases of thermal stress or damage. No specific incidents reported for Fitbit Air, but risk is inherent to the device type and increases if the device is stored in heat or damaged.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 35% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Waterproof Smartwatches & Fitness Trackers
Swatch
Chrono 42 Quartz Watch
Stainless steel case, mineral/plastic crystal, standard watch components
Lower concern. Standard watch materials pose minimal PFAS risk.
⚠Brand says nothing about PFAS
Swatch
SEA WASP
Plastic/resin watch case and strap
Typical consumer watch, no known PFAS risk signal identified
⚠Brand says nothing about PFAS
Swatch
Neon Seppia Big Bold Chrono Quartz Watch
Stainless steel case, plastic/resin band, mineral or acrylic crystal
Lower concern. Standard watch materials typically lack intentional PFAS use.
⚠Brand says nothing about PFAS
More waterproof smartwatches & fitness trackers grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.