Google Fitbit Air Is Water-Resistant, Not Waterproof

Engadget reported that the Fitbit Air has an IP68 rating for dust and water resistance, meaning it can handle up to an hour of continuous immersion beyond 1 meter (3.2 feet). Separately, its 5 ATM rating means it can withstand 50 meters (150 feet) of submersion. Those ratings should allow a lap or two in a shallow pool, according to the report.

The report explained the difference between waterproof and water-resistant. Waterproof devices are impervious to water no matter how long they are immersed or how deep they go, but most wearables do not meet that standard. Even Apple and Samsung, whose rugged smartwatches are water-resistant for up to 100 meters, tend to avoid the term, Engadget reported, because electronics brands have faced lawsuits over misleading advertising.

Water-resistant, by contrast, means a device can withstand some conditions such as rain, sweat or accidental drops into puddles for a limited time. The Fitbit Air's ratings place it in that category. Google advises users not to wear the device in hot tubs, saunas or showers because excessive heat can damage it, and bath soap likely will too, according to the report.

Engadget reported that water resistance can weaken over time. Users can preserve it by avoiding exposure to soaps, perfumes, lotions, insect repellent and high-velocity water, which can wear down seals and adhesives that keep moisture out. Dropping the device should also be avoided because it can warp the frame or loosen seals.

After the Fitbit Air gets wet, users should consider drying the band. Engadget reported that this reduces the risk of bacteria and skin irritation for the wearer and helps keep the device clean and intact.