How accurate is RedLaser on the iPhone?

How accurate is the Nike+ iPhone app in measuring distance?

  • I'd like to measure my mile time accurately, so I need to know how accurate the app is.

  • Answer:

    I would say about +/-5 meters. every time i ran the same distance, and it recorded exactly 3.23 miles almost every time.

Haitao Xia at Quora Visit the source

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Other answers

I compared Nike+ to Garmin Forerunner on many runs and the mileage was almost always identical or within 10%

Diana Birman

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