You may not always see it, but most iPhones emit a flashing red light from the top of their screens. It's nothing to be worried about, though.

When you're talking on a modern smartphone, the display will turn off as soon as you bring the handset to your ear. The feature is meant to prevent accidental taps or interactions with the display.

Person holding a Samsung Galaxy S21 Ultra, one of the devices known to face the blinking dot issue - Chikena/Shutterstock If you own a Samsung phone, you may have occasionally noticed a flashing dot ...