Apple Watch Water Eject
Water Lock, Digital Crown Shortcut, and Backup Methods

There are three distinct methods for water ejection on Apple Watch. Each one suits a different situation. Here is a quick overview before we go deep on each:

Water Lock is the official Apple Watch water eject feature introduced with watchOS 3 on Series 2. It serves two purposes: it locks the touchscreen during water activities so accidental taps do not trigger anything, and it plays a 165 Hz tone when you unlock it to push water out of the speaker.

Enabling Water Lock Manually

Water Lock activates automatically when you start a swim workout in the Workout app. But you can also turn it on manually at any time, including after accidental water exposure:

The Digital Crown shortcut is the quickest way to eject water from Apple Watch once Water Lock is already enabled. Many users do not realise the rotation itself is what triggers the ejection rather than any button press. Here is the full shortcut sequence:

Apple Watch Ultra: Extended Eject Shortcut

Apple Watch Ultra and Ultra 2 have an extended water eject sequence because of their larger speaker and greater exposure to water during diving and extreme sports. The Digital Crown rotation on Ultra runs a longer eject tone, approximately 10 seconds, compared to around 3 to 5 seconds on standard Series models. This is intentional and provides a more thorough ejection for the larger grille openings.

watchOS Shortcut for Siri or Action Button

On Apple Watch Ultra, you can assign the Action Button to trigger Water Lock directly. Go to Settings, then Action Button, then select Water Lock. One press activates Water Lock, and a single Crown rotation ejects. On Series 9 and later running watchOS 10, you can also add Water Lock to the Smart Stack for faster access.

Water Lock solves most Apple Watch water-in-speaker situations on its own. But there are specific cases where additional eject cycles help or where the built-in feature is not available:

• Apple Watch Series 1 or the original Series 0: These models do not have Water Lock at all. The browser-based tool is your only software option.
• Speaker still muffled after 2 to 3 Water Lock cycles: Sometimes stubborn water in the grille mesh needs more than one ejection pass to fully clear.
• Watch is not on your wrist but iPhone got wet too: You can use the tool on the iPhone itself in these situations.
• watchOS issue preventing Water Lock from activating: Rare, but a software glitch can sometimes stop the feature from responding. A restart usually fixes it, but the browser tool is a good temporary workaround.

How to Use the Backup Browser Tool for Apple Watch

1. Open ejectwater.com on your paired iPhone in Safari or Chrome
2. Set your iPhone volume to maximum
3. Select 165 Hz on the frequency picker (the same frequency Apple Watch uses for Water Lock)
4. Hold your Apple Watch with the speaker grille close to but not touching the iPhone speaker
5. Press the Eject Water Now button and let the 30-second cycle run
6. The 165 Hz tone from the iPhone speaker will resonate near the watch speaker and help dislodge remaining moisture

Apple chose 165 Hz for Water Lock because of how it interacts with small speaker membranes and water surface tension. Here is what actually happens during water ejection on Apple Watch:

When the 165 Hz tone plays, the speaker membrane vibrates at 165 cycles per second. At this frequency, the membrane moves far enough and fast enough to generate a pressure wave that disrupts the surface tension holding water droplets against the speaker mesh. The droplets break free and are pushed outward through the grille openings.

Lower frequencies would not move the membrane fast enough. Higher frequencies would vibrate it too quickly for water to respond. 165 Hz sits in a range that produces enough membrane displacement without excessive heat or stress on the speaker components.

Water resistance ratings and Water Lock availability vary across Apple Watch generations. Here is a complete reference for every series:

Once you have completed one or two Water Lock eject cycles, here is the right way to confirm everything is working and protect the watch going forward:

1. Play a sound or alarm on the watch to test audio quality. The Stopwatch or Timer alarm is a quick way to hear whether the speaker is clear again. Muffled sound after ejection means another cycle is needed.
2. Check the microphone by making a Siri request directly on the watch. If Siri misunderstands you or struggles to activate, the microphone mesh may still have moisture. Run the 528 Hz frequency on the backup tool held near the watch microphone opening.
3. Pat the speaker side dry with a lint-free cloth. Press firmly for a few seconds to absorb ejected droplets. Leave the watch face-up in a dry area for 20 minutes.
4. Avoid charging immediately if the watch got heavily soaked. The magnetic charging contacts are sealed on modern Apple Watch models, but it is good practice to dry the watch back before placing it on the charger. If you see moisture near the charging area, wipe it with a dry cloth first.
5. Test at the same time the next day. Most ejection situations resolve completely within a few hours. If audio is still slightly off the next morning after overnight air drying, one more Water Lock cycle usually finishes the job.

Apple Watch Ultra and Ultra 2 are designed for serious water activities including scuba diving to 100 metres and whitewater sports. Their water eject behaviour is noticeably different from standard Series models in a few important ways:

Longer Eject Tone Duration

The Ultra runs an extended eject sequence when you rotate the Digital Crown, roughly twice as long as a standard Series watch. This is because the Ultra has a larger, more powerful speaker and the longer tone is needed to fully clear the wider grille openings and any moisture that may have entered during deep water activities.

Louder Eject Output

The 165 Hz tone on Ultra plays at a noticeably higher volume than on standard models. You can often hear and see water droplets exiting the speaker grille during the cycle. This is intentional and normal behaviour for the Ultra.

Action Button Shortcut

Apple Watch Ultra has a dedicated Action Button on the left side. You can configure this button to activate Water Lock directly in Settings. For anyone using the Ultra for water sports regularly, setting the Action Button to Water Lock is the most efficient workflow: press the button before going in, rotate the Crown when you come out. Two actions, fully protected.

Depth App Integration

Apple Watch Ultra includes a Depth app that tracks dive depth and water temperature. When you exit a dive session recorded in the Depth app, watchOS prompts you to run a water eject cycle automatically. This means ejection is built into the end-of-dive workflow rather than requiring a separate step.

Got water in another device? Every guide uses the same technique, tailored to each device: