alcatel Pop 4 vs vivo X51 5G

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

  Pop 4:

  LCD

  X51 5G:

  OLED

• Width

  Pop 4: 1.4 mm narrower

  Pop 4:

  71.4 mm

  X51 5G:

  72.8 mm

• Screen diagonal

  Pop 4: 1.56 in smaller diagonal

  Pop 4:

  5 in

  X51 5G:

  6.56 in

• Rear camera layout

  Pop 4:

  Single

  X51 5G:

  Quad

• Height

  Pop 4: 17.8 mm shorter

  Pop 4:

  140.7 mm

  X51 5G:

  158.5 mm

• Release year

  Pop 4:

  2016

  X51 5G:

  2020

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. Pop 4

   Height:

   140.7 mm

   Width:

   71.4 mm

   Depth:

   8 mm

   Weight:

   Unknown

2. 2. X51 5G

   Height:

   158.5 mm +17.8 mm versus Pop 4

   Width:

   72.8 mm +1.4 mm versus Pop 4

   Depth:

   8 mm

   Weight:

   181.5 g

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.

At least two phones need compatible screen dimensions for a drawing.

1. 1. Pop 4

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

2. 2. X51 5G

   X51 5G: Screen geometry unavailable or conflicting.

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.

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.