The bigger the screen size is, the better the user experience.
Samsung Galaxy J Max: 7"
Razer Phone: 8GB
Nokia 808 Pureview: 41MP
480 x 800px
Sony Xperia XZ Premium: 2160 x 3840px
8. has an external memory slot
The device has a standard memory slot (such as an SD or micro SD card slot) so that you can either extend the internal storage with affordable memory modules or you can retrieve data, such as photographs, easily from a memory card.