Garmin Swim Watch with Garmin Connect Records swim distance pace stroke count and pool lengths , Water resistant to 50 meters Physical size 1.7 x 1.9 x 0.5 inches.Wireless uploads using ANT to Garmin Connect to analyze Offers advanced features for timed sets and logging drills Watch features - time of day (12/24h), dual time zone, day/date, daily alarm Twelve month battery life on a user-replaceable coin cell battery - CR 2032