Nike has laid off several workers in its Fuelband division, which makes the computerized wristbands that help wearers track their physical activity and learn new habits. The layoffs point to a growing realization that wearables are just a tough sell, according to Re/code.
Several companies have had glitches with their products. Fitbit had to issue a recall on one of its wristbands after it was supposedly giving people rashes. Jawbone's UP malfunctioned, forcing a company apology and a generous return policy.
But the biggest obstacles to sales are likely less dramatic. Customers may just not really like wearing wearables. Data suggest users lose interest in the devices after a few months of use, and frequently complain about comfort, design, and ease of use.
To Read the full story in Re/code, click here.
—By Lauren Goode and James Temple, Re/code.net.
CNBC's parent NBC Universal is an investor in Re/code's parent Revere Digital, and the companies have a content-sharing arrangement.