[celsoazevedo]

Not sure if you need a physical LED when many phones these days have OLED displays that can mimic the LED without consuming too much power. Some Android brands have this built-in and there are also some 3rd party apps that do the same.

[bitwize]

OLED displays are prone to permanent burn-in, so... not always the best choice.

[celsoazevedo]

Right, but it's what most flagships use anyway (iPhone, Google Pixel, Samsung, even this phone), so if you're an OEM that uses OLED and don't want to have a dedicated LED, it can be done with the display. Burn-in wouldn't be a problem for this fake LED because it can move around as it blinks.