A    5G  FoldingSmartphone-that-can-unfold-into-a-15.6 inches Tablet , can be a true and a real   [ Laptop/Tablet/Smartphone (ALL-in-ONE) ]  machine , because with that  15.6 inches form factor, it can serve as a  15.6 inches 5G Cellular Laptop , it can serve as a  15.6 inches 5G Cellular Tablet [ 1 ] and  BEST OF ALL  it can serve as a  5G smartphone.