What are sensors?

Sensors are small devices installed on a smartphone that collect different types of data for the benefit of the user. From face unlock and Touch ID, to GPS and auto-brightness, your phone relies on sensors so you can use all your favourite apps, features, and games.

Some devices may have more sensors than others. Common sensors that are installed on most modern smartphones include:

What does the accelerometer sensor do?

The accelerometer is a built-in sensor that’s used to detect the orientation of the phone. It’s a very important component, since it tracks different motions, such as tilting, swinging, and rotating, and then changes the orientation of your phone in response, changing the screen between landscape and portrait as required.

What’s a proximity sensor?

A proximity sensor detects the presence of a nearby object without any physical contact. These types of sensors are used in smartphones, as well as self-driving cars, assembly lines, and even recycling plants.

What’s a proximity sensor used for?

In a smartphone, the proximity sensor detects when you hold your phone near your face during a call. It then turns the display off, so you don’t accidentally press any keypad buttons. This sensor’s also useful for saving battery power, as it can tell when your phone is in your pocket and will notify the processor to turn off the screen.

What’s a fingerprint sensor?

The fingerprint sensor is an important security component in a smartphone, and it is used to unlock the device, open apps, and confirm payments. The use of fingerprints as a security measure is designed to ensure only the phones owner can access the device. These sensors were originally located in a phone’s home button, however they can now be found in a devices display, or near the camera on the back.