The bigger the screen size is, the better the user experience.
Samsung Galaxy J Max: 7"
Oppo Find X: 8GB
Huawei Mate RS Porsche Design: 40 & 20 & 8MP
320 x 480px
Sony Xperia H8541: 2160 x 4320px
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.
Huawei Ascend Y
85% have it
Starmobile Uno B208: 68g
10. every pixel has three subpixels
The device has a display with three full subpixels per pixel, resulting in a sharp and crisp picture. Pixels in some displays (like AMOLED) share one subpixel to preserve space. This can result in a less crisp, slightly blurred image.