( when folded it become a  Smartphone and when unfolded it becomes a  Tablet ,  a   15.6 inches  Tablet ) .  Regardless , whether it is a  dual-fold design  or a  triple-fold  design , the advantages of these design is that , the  Smartphone is thin and light and slim and sleek and when the  Smartphone  is unfolded , it can turn into  a  15.6 inches   Linux  Tablet and  we  can hold the machine like this ,  we can hold the Smartphone  like this .  

Just imagine holding  a  traditional   15.6 inches  Linux Tablet   like that . The  machine will slipped from our hand and fell .

With  a     wireless/bluetooth    keyboard   and with  a     wireless/bluetooth       mouse ,  the  15.6 inches INTEL-based   Linux  Tablet       can  turn into a  Linux  Laptop     ( 15.6 inches ) .  Without the  keyboard and the mouse the latter become  a   Linux  Tablet ( 15.6 inches ) .