The Water Lock is one of the handy tools you'll find on your Apple Watch, and it does just what it says. Here's how to enable it.

The Water Lock icon appears at the top of the watch face, indicating that the feature has been turned on. To eject water, turn the Digital Crown until a sound plays.

Apple Watch's water resistance allows most models to be submerged in water as deep as 50 meters. The Water Lock feature disables touches on the screen; it doesn't stop water from entering the watch.

Once Water Lock Mode is activated on your Galaxy smartwatch, it's ready to be worn in the water. To disable Water Lock mode after your swim, long-press on the home/power button.

The iPhone doesn't have the Apple Watch's Water Lock feature, meaning there's no built-in way to eject water from an iPhone. That's where Apple's Shortcuts app comes in.