What is the black dot at the top of my android phone?

The black dot at the top of your Android phone may be the front camera or the proximity sensor.

• The front camera is used for taking selfies, video calls, and facial recognition. It is usually located near the top of the phone, either in the center or on one of the sides. The black dot you see may be the camera lens.

• The proximity sensor is a small black dot that is usually located near the front camera. It is used to detect when your phone is near your face during a call and automatically turn off the screen to prevent accidental touches.

In either case, the black dot is a normal and essential component of your phone's hardware.