While fitness technology is hardly a new category of accessories, it is a growing one: The CEA announced that this year's CES has 25 percent more booths related to digital health and fitness technology compared to last year's event. Over 215 health- and fitness-related exhibitors are on hand in the South Hall this year, displaying gadgets and apps that help you track calories, access your medical history, coordinate with your doctors, or set up an exercise regimen–all from a smartphone or Bluetooth-enabled device.

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