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Many watches have dozens or more activities that they can track. However, across most activities, most trackers record only the total duration and heart rate data — meaning that choosing the correct activity is more for your peace of mind than the type of data you'll capture. Additionally, many distance-based activities like running, biking, swimming, or paddling also record things like distance and speed. More advanced trackers have the capability to record increasingly specific metrics such as cadence, strokes, laps, or elevation. (责任编辑：) |