Haven't swum in the pool yet. It behaves strangely when determining activity, then it determines it does not determine, it can turn off during a workout, or vice versa, after finishing a workout, it continues to stubbornly consider that the workout continues (you need to stop it manually). Therefore, it does not always adequately evaluate the results of training. In general, a double impression. But for such a price, you probably won't get more :).
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