Asus Zenfone V V520KL vs vivo Y91

Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

• Display technology

  OLED versus LCD

  Zenfone V V520KL:

  OLED

  Y91:

  LCD

• Weight

  Zenfone V V520KL: 16.4 g lighter

  Zenfone V V520KL:

  147.1 g

  Y91:

  163.5 g

• Width

  Zenfone V V520KL: 2.5 mm narrower

  Zenfone V V520KL:

  72.6 mm

  Y91:

  75.1 mm

• Screen diagonal

  Zenfone V V520KL: 1.02 in smaller diagonal

  Zenfone V V520KL:

  5.2 in

  Y91:

  6.22 in

• Chipset

  Zenfone V V520KL:

  Qualcomm MSM8996 Snapdragon 820 (14 nm)

  Y91:

  Qualcomm SDM439 Snapdragon 439 (12 nm)

• Rear camera layout

  Zenfone V V520KL:

  Single

  Y91:

  Dual

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

1. 1. Zenfone V V520KL

   Height:

   146.6 mm

   Width:

   72.6 mm

   Depth:

   7.6 mm

2. 2. Y91

   Height:

   155.1 mm +8.5 mm versus Zenfone V V520KL

   Width:

   75.1 mm +2.5 mm versus Zenfone V V520KL

   Depth:

   8.3 mm +0.7 mm versus Zenfone V V520KL

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

1. 1. Zenfone V V520KL

   Screen diagonal:

   5.2 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   74.5 cm²

2. 2. Y91

   Screen diagonal:

   6.22 in

   Aspect ratio (height:width):

   19:9

   Approximate rectangular screen area:

   96.6 cm²

Y91 has approximately 29.5% more rectangular screen area than Zenfone V V520KL.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

Battery capacity

Capacity is not battery life. No endurance test is implied.

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.