The symbols on the top of an Android screen are called notification icons. These icons represent the different notifications that your phone displays such as incoming calls, messages, and app notifications. Here are some common symbols you might see on the top of your Android screen:
1. Wi-Fi signal strength icon: Shows the strength of Wi-Fi signal.
2. Mobile network signal strength icon: Shows the strength of the cellular network signal.
3. Battery icon: Shows the amount of battery life remaining on your phone.
4. Bluetooth icon: Indicates that Bluetooth is turned on.
5. Do not disturb icon: Indicates that Do not disturb mode is turned on.
6. Screen rotation icon: Indicates that the screen rotation is enabled.
7. Airplane mode icon: Indicates that airplane mode is turned on.
These symbols can vary depending on the make and model of your phone, the current settings, and the apps that you have installed. If you want to learn more about the symbols on your phone, you can refer to your phone's user manual or do a quick online search for your specific phone model.