, with easy-to-read menu options in each corner which correlate to each of the four buttons on the watch.From the beginner who wants to remain a little more focused on their stroke and avoid fretting over what lap they’re on to the more experienced swimmer
as possible.Your ideal warm-up depends on your level. For beginners, whose main goal is finishing, no warm-up is necessary. You can warm up during the first couple of miles. For more serious marathoners attempting to run significantly faster than their normal