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Review title: Small and lightweight but inaccurate
Product review: The sport kit is easy enough to use but even after calibration on a treadmill, the distances it logged were still off by 5% to 6%. If you just need a rough estimate of your training runs, it'll work fine. If you're more serious about your times and splits, you'll have to look elsewhere. Mine died after a year and I didn't bother to replace it.
