The Status bar provides phone information on the right side and notification alerts on the left. On the screenshot you can see the different symbols and icons on your Samsung Galaxy Android smartphone. The Status bar is shown at the top of the screen.
The pictures below indicates the different status icons on your Android smartphone.
Samsung Galaxy S9 | S9+ Status bar icons
Status symbols: Battery full, Battery low, Battery charging, Vibrate mode, Mute mode, Signal strength, Network not available, Wi-Fi active, Location service active.
Notification icons: Missed call, Call in progress, Call on hold, New email, New voicemail, New message, File download in progress, File upload in progress, Wi-Fi available, App updates available.
Status Bar Display
You can configure the display options for the Status bar.
1. From the Home screen, swipe up to access Apps.
2. Tap Settings > Display > Status bar.
From the status bar settings menu you can chose recent notifications to only show the three most recent notification icons. You can also chose to show the battery percentage and battery charge percentage next to the battery.