Optical vs. Laser Mouse: Key Differences Explained

Nowadays, optical and laser mouse are the ones that dominate the market. Both types of mouse use light to track their movement. The optical mouse uses LED light and an optical sensor to track mouse movement. And laser mouse uses precise laser light and a laser sensor to track its movement.

Optical Vs Laser Mouse – What’s the Difference?

Depending on the type of use and user preference, both laser and optical mouse have advantages and disadvantages. This article compares the two mouse types based on various factors such as their sensitivity, accuracy, pricing, operating surface, and more.

How Does a Mouse Work?

how-mouse-works

Before comparing the two, let us see how a modern mouse works. As stated earlier, whether it be wireless or wired, most mice released these days use light to track their physical movement. Every circuit board in a mouse has an emitter and a CMOS (Complementary Metal Oxide Semiconductor) sensor. 

The emitter turns on the light. Photons from the light source hit the surface and illuminate the surface. The CMOS sensor captures the depths and valleys of the surface. This enables the sensor to picture every surface detail. 

When the mouse moves, the CMOS again captures the surface details. Once it gets the new surface texture, the DSP (Digital Signal Processor) compares the two surface details and analyzes the new mouse position. 

According to the physical mouse movement, the mouse then sends mouse position data to the system. The computer will now move the mouse cursor according to the data received.

All these processes occur thousands of times in one second. This rate of recording the mouse’s physical position and sending it to the OS is called polling rate of the mouse.

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Optical Vs. Laser Mouse

Before we get into comparing the two mouse, let us first see how the two types of mouse work.

Optical Mouse

The optical mouse has a Light Emitting Diode (LED) on its board. The mouse uses this LED light to emit a series of photons to the surface, and an optical sensor captures the image.

optical-mouse-1

Since the light needs to be reflected to catch the surface irregularities, you cannot use this on a smooth, transparent surface like glass. Since a smooth surface will not have any irregularities or textures, the optical mouse will not record any movement. 

You will see a bright red LED light under the mouse. Nowadays, the LED sensor is so powerful that it does not require a bright LED light, a faint LED will do the trick. This is why you do not see bright red LEDs under a modern optical mouse.

The optical mouse also has a lower DPI compared to the laser mouse. Starting with the DPI of 400 and going up to 16000 DPI or even more. 

Pros and Cons

Pros:

  • Perform best on irregular or rough surfaces.
  • Affordable
  • Good for low sens gamers

Cons:

  • Less sensitive and lacks accuracy.
  • You cannot use it on smooth surfaces.
  • Low DPI

Laser Mouse

The laser mouse uses an actual laser beam of light to illuminate the surface. Besides this, the working principle is exactly the same. Once the laser illuminates the surface, the CMOS sensor captures a more accurate, crispier image. 

lazer-mouse

Since the laser uses precise, concentrated light and captures better images, the laser mouse is more accurate and precise. It also offers a higher DPI. Furthermore, since this laser mouse uses high-precision laser emitters and sensors, they can be pricey.

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However, this type of mouse can sometimes be too accurate and overshoot physical movements. This means that the mouse cursor can move even if you stop physical mouse movement.

Pros and Cons

Pros:

  • Great for High sens gamers
  • Good accuracy and sensitivity
  • It works great even without a mouse pad

Cons:

  • May face acceleration problems
  • The price range is too high
  • It will not give the best performance at low speed.
  • Can be too accurate
  • The mouse feels jittery at low speeds.

Mohamed SAKHRI
Mohamed SAKHRI

I'm the creator and editor-in-chief of Tech To Geek. Through this little blog, I share with you my passion for technology. I specialize in various operating systems such as Windows, Linux, macOS, and Android, focusing on providing practical and valuable guides.

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