 |  |  Nike C5
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ECG-accurate - provides accurate heart rate data.
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Target heart zone - programmable heart rate training zone with audible out-of-zone alert.
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Exercise chronograph recalls exercise time, average heart rate, and time in zone for last exercise session.
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Other functions: time/date display, 1 alarm.
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" S"-shaped design curves around the wrist for improved comfort and an easy read.
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Ergonomic chest transmitter enhances comfort.
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Mineral glass crystal is scratch-resistant.
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Nike Electrolite offers one-touch backlighting.
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A battery hatch on watch and chest strap offers easy battery replacement.
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Water-resistant to 50 meters.
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