Since Android Studio 2.0 and its reworked "build / run" mechanism, I can't "launch" an APK on a second device anymore. Once the APK has been loaded on the first device, I can't choose to launch a build to another device.
"Run" will target the current device "Re-run" will stop the application running on the current device and upload it to the "second" device.
So my question is : "How can I launch a "second" build targeting a different device than the first device I builded on without terminating the first process ?"
Sorry for my bad english, this is not my native language.
Disconnect the device, click on the "play" button. Android Studio ask you now where to run the app.
Connect your device and select it.