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Apple Watch Water Eject — And How to Get It on Any Device

Apple Watch Water Lock is the original sound-wave water ejection feature. Here's how it works — and how to use the same physics on your iPhone, AirPods, or Android phone.

How Water Lock works

When you turn the Digital Crown after a swim, the Apple Watch plays a low-frequency tone tuned to the resonant frequency of its speaker driver. The diaphragm moves with maximum amplitude, generating pressure waves strong enough to expel water trapped in the mesh. This is patented as US 10,536,778.

Use the same physics on any device

  1. Open SpeakerRescue tool in any browser
  2. Select your device — iPhone, Android, AirPods, MacBook, tablet, Bluetooth speaker
  3. Turn volume to maximum and tap Start Rescue

Apple Watch vs SpeakerRescue

  • Apple Watch Water Lock: built into the Watch — single device, single tuned tone
  • SpeakerRescue: free in any browser, 50+ devices, three calibrated frequencies (165Hz / 440Hz / 528Hz)
Try it now — free, in your browser

No app, no signup. Eject water in 30 seconds.

Open the rescue tool

Other device guides

iPhone
Run our free sound-wave ejection tool in Safari, Chrome, or any browser. Works on every iPhone from iPhone 6 to iPhone 16 Pro Max — no app required.
Android
Sound-wave water ejection that works on every Android phone — Samsung, Pixel, OnePlus, Xiaomi, Redmi, Vivo, Realme and more. Use it in Chrome at full volume.
AirPods
Sweat from a workout, rain, or a quick splash can all clog AirPods. Our acoustic tool clears trapped moisture without an app — in 60 seconds.
MacBook
Condensation, splashes, and minor spills can muffle the MacBook's hi-fi drivers. Use the 440Hz mid-range mode to clear them — no disassembly required.