Hello Les, great question! The water resistance specification for the Galaxy Watch Active series is 5ATM, which means the devices are water resistant in up to 50 meters (roughly 164 feet) of water for up to 10 minutes. Despite this classification, your device is not impervious to water damage in any situation. Your wearable is not intended for scuba diving and it is important that all compartments are closed tightly to prevent internal damage. Falls and shocks may breach the structural integrity of the device. You must avoid excessive sudden temperature changes, high velocity activities, or exposure to liquids other than fresh water. ^Elizabeth