Garmin Swim 2 lets you monitor your heart rate underwater

Garmin Swim 2 Advanced Swimming Smartwatch, by Garmin, Price: R 5 799,9, PLU 1143784

The 8 Best Waterproof Fitness Trackers

Garmin Swim™ 2

Garmin Swim 2 review - Wareable

My Garmin 245 does a great job tracking HR when swimming : r/Garmin

Garmin Swim™ 2

The Best Waterproof Heart Rate Monitors for Swimming

The Best Waterproof Heart Rate Monitors for Swimming

The Most Affordable GPS Watches For Swimrun under $300 - Six Options

o 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 Pool swim mode

Garmin Swim 2, GPS Swimming Smartwatch for Pool and Open Water, Underwater Heart Rate, Records Distance, Pace, Stroke Count and Type, Slate Gray