The bigger the screen size is, the better the user experience.
Samsung Galaxy J Max: 7"
Razer Phone: 8GB
Doogee V: 21 & 21MP
480 x 854px
Sony Xperia XZ Premium: 2160 x 3840px
8. front camera megapixels
Doogee V: 16 & 16MP
9. 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.
84% have it
Asus Zenfone AR 64GB: 4.6mm
11. has a removable battery
The battery is removable and can be replaced by the user if broken.
39% have it
12. internal storage
Samsung Galaxy S9 Plus Dual SIM: 256GB
13. has USB mass storage support
It can transfer files, music, photos via USB, no need to install additional software.