Samsung Galaxy S25 Edge has thinner but more powerful vibration motor than S25 Ultra

You may not think about it every day, but every phone has a vibration motor. This one is meant to give you haptic feedback. It keeps you informed of incoming messages to simulate actually pressing a virtual button. Samsung had to go all the way back to the drawing board for the vibration motor in the S25 Edge.

Because with a housing only 5.8 millimeters thin, there is little room for the usually hefty component. The days when a vibration motor consisted of nothing more than a weight on a round rotating stick are long gone. These so-called Eccentric Rotating Mass (ERM) vibration motors have been replaced by a more sophisticated system in many smartphones.

Thus, Apple has been applying a so-called Taptic Engine in the iPhone since 2015. A kind of cylinder with piston that can deliver vibrations much more precisely. This kind of solution is also called a Linear Actuator and you see them more and more in smartphones these days. Whether the vibration engine in the S25 Edge is also of this type we do not know, but it is considerably thinner at 2.73 millimeters than in the S25 Ultra.

Why a smaller vibration motor is important

Quite a few man hours reportedly went into developing this Samsung ESA0815. And that paid off because the vibration motor of the Samsung S25 Edge is more powerful than the larger vibration motor in the S25 Ultra.

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How Samsung managed this, and what technology the ESA0815 uses will become apparent when we get the first teardown videos in. Making these types of components smaller also benefits elsewhere. For example, it will also allow Samsung to make thinner foldables. So an ultra-thin Galaxy S phone is not just for show.

Image: X/@TheGalox_

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