フィルタリングログにより、デバイス上のアプリをデバッグし、何のPC接続は、ログを参照する必要はありません
Device debug lets you debug application on your phone. No need to connect phone with PC to see the logs. You can just open device debug application, enter your application filter and you can monitor all logs by your application. It is helpful to monitor real time logs from application.