GPS swimming smartwatch for the pool and open water

Monitors underwater wrist-based heart rate1 during swim activities
Pool swim mode: records distance, pace, stroke count, stroke type and SWOLF (gauges swimming efficiency)
Open-water swim mode: uses built-in GPS for swims in lakes, oceans or rivers; records distance, pace, stroke count, SWOLF, stroke rate and stroke distance
Offers advanced features for staying on pace, logging drills and more
Includes free online analysis, custom workout creation, storage and sharing on Garmin Connect™ online community
Battery life: up to 7 days in smartwatch mode, 13 hours in GPS and optical heart rate (OHR) mode and 72 hours in pool and OHR mode