Laptop and Tablet and Smartphone merge

I have a MSI GE70 (17inches) computer hardware as a Laptop and I have a  SAMSUNG Galaxy Note 10.1 N8000 (10.1 inches) computer hardware as a Tablet and I have a SONY Xperia Z Ultra computer hardware as a Smartphone . It would be nice if I could merge the Laptop , the Tablet and the Smartphone into one computer hardware and call it the
Laptop/Tablet/Smartphone  hybrid .  I do not have to carry 3 devices for my Laptop , Tablet and Smartphone needs . I only carry 1 device . I only carry 1 unit  of  Laptop/Tablet/Smartphone   hybrid regardless of screen size and Operating System .