This smart bra tracks your workout

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The makers of the Ralph Lauren smart shirt have created a smart bra capable of tracking your workout.

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omsignal smart bra

OMsignal

OMsignal, which makes biometric smartwear, is introducing the smart sports bra at the Consumer Electronics Show (which starts Tuesday and runs throughout the week). It can measure metrics, like the number of calories you've burned and your breathing rate.

Here's a closer look at the smart bra and how it works: