GoKawiilAndroid's blue status-bar dot flags real-time app location access
Android displays a blue dot indicator when an app is actively using GPS, Wi-Fi or cell towers to determine a device's location, reflecting activity happening now or within the past 10 seconds for foreground apps, per Android developer documentation for Android 17 and newer. Users can swipe down from the top of the screen and tap the indicator to see which app triggered it. Samsung's One UI 9 adopted the same blue pin design, replacing the plain location pin icon used in earlier versions.