Choose Device Dialog
This dialog box opens when you start a run or a debug session with the manual selection of the target device specified in the run/debug configuration (i.e. the Show chooser dialog option is selected in the Run/Debug Configuration: Android Application dialog). It shows the list of all currently running devices, both physical and virtual.
Use this dialog box to appoint a running device, or to launch a virtual device.
Choose a running device
Select this option to choose a running device from the list below. The following information is provided on each device:
Select this option to launch a virtual Android device. To create a new device, click Browse to launch the Android Virtual Device Manager.
Use same device for future launches
Select this checkbox to use the selected device for the future run and debug sessions.