GoKawiilKaitlyn Cimino / Android Authority
TL;DR Reddit users with smaller wrists say the Fitbit Air’s “one size fits all” design feels oversized and leaves noticeable gaps around the skin.
Some users suggested wearing the tracker on the bicep or ankle instead, though others questioned whether Fitbit’s sensors are optimized for those placements.
The discussion has sparked calls for Google to offer multiple band sizes or dedicated accessories, highlighting the limits of “one size fits all” wearables.
Fitness trackers are supposed to work best when they sit snugly against your skin. That’s how they properly measure heart rate, track workouts, and avoid wildly inaccurate readings. But Google’s new Fitbit Air is already running into the classic problem with “one size fits all” wearables: they rarely fit everyone equally well.
Enchantress11, a Reddit user, recently shared photos showing how oversized the Fitbit Air looks on smaller wrists. According to the user, the tracker is tight enough to stay in place, but it still looks awkwardly large, and the band can’t wrap any further. The images show noticeable air gaps around the wrist, which is exactly the kind of fit issue you don’t want on a device that relies heavily on skin contact for accurate tracking.
Another commenter chimed in, saying they also have “comically small wrists” and appreciated the post because it gave them a realistic idea of how the tracker might fit in real life. The original poster admitted pre-ordering the Fitbit Air felt like a gamble, though they said it still sort of fits.
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The discussion quickly turned into a brainstorming session about alternative ways to wear the tracker. Several users suggested placing it higher on the bicep rather than the wrist, arguing that fitness trackers tend to perform better when there’s more surface area and tissue beneath the sensors. But others pointed out that Fitbit’s sensors may not actually be calibrated for bicep placement, which could create a whole new set of accuracy problems.
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