The Garmin Swim is the only pool swimming watch that logs your distance, pace, stroke count and stroke type and includes free wireless online analysis, storage and sharing at Garmin Connect. Garmin Swim also has advanced features for timed sets and logging drills, and it can gauge swimming efficiency (swolf), making it ideal for lap swimmers of all levels. This watch has a slim profile that won't drag you down, in or out of the pool. And to help you stay motivated, the Garmin Swim displays your weekly distance under the time of day. Powered by a user-replaceable battery that lasts one year with typical use, it's always ready to go.