A  15.6 inches 5G smartphone or a 5G smartphone with a screen size of  15.6 inches , can serve as a Laptop , it can serve as a Tablet and BEST OF ALL it can serve as a Smartphone.

Tablet_ A  15.6 inches 5G smartphone can serve as a Tablet.....a 15.6 inches Tablet......a large 15.6 inches 5G Android Tablet. Currently, most of the 15.6 inches Android Tablet in the market are Commercial/Industrial Tablets that are used for Advertising, POS Machines, Kiosk, etc., etc. and all the Commercial/Industrial Tablets do not have telephone/phone  functionality like a 5G smartphone. Having said that, a  15.6 inches 5G smartphone that can serve as a 15.6 inches Android Tablet is much much better than the 15.6 inches Android   Commercial/Industrial   Tablet.