The proximity sensor on the POCO F5 is an optical sensor, which is a virtual sensor. The ultrasonic sensor is also a virtual sensor. Only the infrared sensor is a physical sensor. The ultrasonic sensor determines the distance of obstacles by sound, while the optical sensor measures the distance by the strength or weakness of the light.
Proximity sensors play a crucial role in smartphones by improving experience and optimizing power consumption through smart management of screen activation based on the device's proximity to objects or actions.
