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Next from Apple: A pedometer that never misses steps?

Is a smart pedometer the next big release Apple has up its sleeve?

Documents released Thursday at the U.S. Patent and Trademark Office show that the company is working on a device to more accurately measure a person's movement—presumably for a health-monitoring wearable device.

The patent covers a "smart wrist-mounted pedometer that can automatically determine its location on a user's body and compensate for missed steps using advanced processing algorithms," according to Apple Insider.

The company first filed a series of patents related to pedometer accuracy in April 2013.

Analysts are looking for the tech giant--whose stock is down slightly from the beginning of the year--to introduce new product categories to excite buyers again.

—By CNBC.com.