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iSpeaker Cleaner

Can an iPhone eject water like an Apple Watch?

Not by itself: iPhone has nothing like the watch's Water Lock in Settings or Control Center. An app can do the same trick, though, because iSpeaker Cleaner's Water Ejection tab plays a loud 165 to 200 Hz tone through the speaker, and that is enough to shake droplets out of the grille.

3 min read · Updated 2026-09-23

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What the watch does and what the iPhone lacks

On the watch you switch on Water Lock, turn the crown, and it plays a tone that pushes water out of the speaker. Physics, nothing fancy: a loud low note throws the cone back and forth, and the moving air takes the drops with it.

The iPhone speaker can do the same. The button is what's missing: there is no water setting in Settings or Control Center, so the tone has to come from an app.

How much shaking you get

To put a number on it: a 165 Hz tone swings the cone 165 times a second. With Enable Frequency Sweeps on (the default) the pitch climbs from 165 to 200 Hz in a straight line, about 5,460 swings in the default 30 seconds. Thousands of hard pushes, and that is all it is.

Swings of the speaker cone per run (computed from the tone, rounded)
RunToneLevelSwings
Water Ejection, 30 s (default)165 to 200 Hz glideFullabout 5,460
Water Ejection, 60 s165 to 200 Hz glideFullabout 10,930
Water Ejection, 120 s (the maximum Cleaning Duration)165 to 200 Hz glideFullabout 21,880
Smart Clean > Water, 40 s80, 165, 200, 165, 80 Hz steps80%5,520
Smart Clean > Normal, 30 s165 and 220 Hz steps70%5,775

A longer run does not push harder; it just stretches the same 35 Hz glide out, 1.17 Hz per second at 30 seconds and 0.29 Hz per second at 120. Level stays full either way. Repeating 30-second runs is enough.

Where it falls short of Water Lock

  • The app has to stay open on screen. Switch tabs or leave it and the sound stops.
  • It cannot turn the volume up for you. The card on the screen says Set volume to max, and you do that with the side buttons.
  • It only reaches the speaker grille. Water behind the microphones or in the charging port stays where it is.

For a wet-handed start there is an Eject Water action in Shortcuts, Spotlight and Siri (English phrases only) that opens the tab and starts the run.

Running it on an iPhone

  1. Volume to maximum with the side buttons.
  2. Open Water Ejection, tap Start Ejection, and hold the phone as Hold device upright says.
  3. Wait out the countdown. If the sound is still dull, follow Repeat if necessary after a few minutes.

Those 2 runs are a lifetime total, not a daily allowance, and comparing a few settings in a single afternoon is enough to use them up, triggering Free limit reached. From there you can tap Watch Ad for one bonus run, buy Pro once for unlimited runs, or use the free Water program under Smart Clean. It is quieter at 80%, but it has no limit, which makes it the better one to try first.

Questions and answers

Does the iPhone have a water eject feature?
No built-in option exists in Settings or Control Center. The Apple Watch has Water Lock; for the iPhone the sound has to come from an app such as iSpeaker Cleaner.
How does Apple Watch eject water?
It plays a tone through its speaker, and the moving cone pushes water out of the opening. iSpeaker Cleaner borrows that idea for the iPhone and iPad speaker, but it is a separate app and does not touch the watch.
Does an iPhone water eject sound work?
For droplets sitting in the speaker grille, it can. For water inside the phone, in the charging port or behind the microphones, it does nothing.
Can I run it on my Apple Watch?
No. iSpeaker Cleaner is an iPhone and iPad app and has no watch version.

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