A good  example of an   [ Android OS   Laptop/Tablet/Smartphone(All-in-ONE) with built-in DVD-RW Player ]  machine is the  [ 15.6 inches  Touchscreen  " 360 degrees foldable "  INTEL-based   Android OS  5G  Cellular  Laptop with built-in DVD-RW Player ] which can operate like a  Smartphone . 

In LAPTOP MODE , the  [ 15.6 inches  Touchscreen   " 360 degrees foldable "  INTEL-based   Android OS  5G  Cellular  Laptop with built-in DVD-RW Player ]  can be an                 [ INTEL-powered Android 5G Cellular Laptop with built-in DVD-RW Player ]   which can operate like a  Smartphone with  15.6 inches screen size .

In TABLET MODE , the  [ 15.6 inches " 360 degrees foldable "  INTEL-based   Android OS  5G  Cellular  Laptop with built-in DVD-RW Player ]  can be an                 [ INTEL-powered Android 5G Cellular Tablet with built-in DVD-RW Player ]   which can operate like a  Smartphone with  15.6 inches screen size .

Finally it means that the  [ Android   Laptop/Tablet/Smartphone(All-in-ONE) with built-in DVD-RW Player ]  machine can be an Android 5G Cellular Laptop , an Android 5G Cellular Tablet and an Android 5G Smartphone  combine into one machine , combine into one device .