A   5G   folding-smartphone-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  5G Laptop , it can serve as a  5G Tablet and it can serve as a  5G smartphone.