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Samsung Nexus Alarm (Cesium)

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The Cesium alarm tone from Samsung and Nexus phones, a bright pulsing chime that builds gently. Used for wake-up skits, morning routine memes and phone gags.

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About this sound

The Cesium alarm tone from Samsung and Nexus phones, a bright pulsing chime that builds gently. Used for wake-up skits, morning routine memes and phone gags.

Cesium is a stock alarm tone bundled with Samsung Galaxy devices and Nexus-era Android phones, lasting just over two seconds in this clip. It opens with soft, glassy synth notes that pulse in a steady rising pattern, bright and clean without being harsh. The tone feels familiar and slightly urgent, the way a real morning alarm does, which makes listeners instinctively pay attention. In videos it works as an instant wake-up cue, snapping a sleepy scene into motion or signalling that something is about to start, and its nostalgic phone sound gives skits an authentic everyday feel.

Pro tip

Drop Cesium right on the cut where a character jolts awake, and let it ring once before dialogue so the alarm feels real. Pair it with a phone close-up or bright screen flash, and avoid looping it more than twice or the chime turns annoying.

How people use it

A character oversleeps and scrambles out of bed.
A morning routine montage starts with the alarm ringing.
A prankster sets the alarm during a sleepover scene.
A phone screen lights up beside a sleeping gamer.

More information

Cesium shipped as a default alarm sound on Samsung Galaxy smartphones and on Google Nexus devices running stock Android, which put it in millions of bedrooms through the 2010s. Because it was a system tone rather than a song, it became widely recognised from real mornings rather than from media. Clips of it now circulate on soundboards for creators who need an authentic phone alarm without recording their own device, and its short runtime makes it easy to drop into skits about waking up, being late or getting interrupted.

FAQ

What is the Samsung Nexus Alarm Cesium sound?

It is the short stock alarm tone called Cesium that shipped on Samsung Galaxy phones and Nexus devices. The clip is a bright, pulsing chime about two seconds long, widely recognised as a default Android morning alarm.

Where is the Cesium alarm from?

Cesium comes from Samsung and Google's Nexus-era Android system sounds, where it was listed as a built-in alarm tone. It spread because millions of phones carried it, so people recognise it from real mornings rather than from a show or meme.

How do creators use the Cesium alarm sound?

Creators drop it over wake-up scenes, late-for-work skits and morning routine edits to signal instantly that an alarm is ringing. It also works for phone close-ups, sleepover pranks and any cut where a character needs to jolt awake.