The small green dot in the upper-right corner of an Android phone can appear suddenly and leave you wondering what it means. In most cases, there is no reason to worry. The green dot is a built-in privacy feature that lets you know when an app is accessing your phone’s camera or microphone.

On devices such as Samsung phones, the indicator can appear when you are taking a photo, recording audio, making a video call, or using an app that needs access to a sensitive sensor. Android introduced this feature to give users more control and visibility over how applications use the camera and microphone. Instead of allowing that access to happen unnoticed, the phone provides a clear visual warning.

If the green dot appears unexpectedly, you can swipe down from the top of the screen and tap the privacy indicator. Your phone should show whether the camera or microphone is active and which application is using it. If you recognize the app, the activity is usually normal and simply reflects a permission you previously granted.

However, an unfamiliar app should be checked. Open Settings and look under Privacy or Permission Manager to review which apps can access your camera and microphone. You can remove permissions that are no longer necessary or restrict an app so it can use a sensor only while you are actively using it.

Ultimately, the green dot is meant to provide reassurance rather than fear. It gives you visibility into what your phone is doing and helps you keep control of your camera, microphone, and personal information.