A warehouse worker reaches for a high shelf, a wristband wrapped around each arm. The company-issued wearables track the location of every product the employee handles while occasionally vibrating to guide their movements.
The scene is just a drawing from a pair of patents Amazon won for tracking wristbands. The gadgets aren't in use in any of Amazon's fulfillment centers, but news that Amazon (AMZN) has considered wearables has raised concerns about workplace surveillance.
Amazon wouldn't say if technology based on the patents was in development or being manufactured. The patents were published Wednesday, though Amazon first submitted them two years ago.
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