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'Smart' workout clothes, food printer: Must-have gadgets for 2015

TODAY tech expert Katie Linendoll shows Willie Geist and Al Roker “smart” workout clothes and watches that track heart rate and muscle use while you sweat. She also demonstrates a food printer that produces 3-D candy!

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Tech-spert demos ‘smart’ clothes, printed candy

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Tech-spert demos ‘smart’ clothes, printed candy

Play Video - 5:02

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