Oppo A31 vs vivo X9s Plus

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

  A31:

  LCD

  X9s Plus:

  OLED

• Width

  A31: 3.4 mm narrower

  A31:

  75.5 mm

  X9s Plus:

  78.9 mm

• Screen diagonal

  X9s Plus: 0.65 in smaller diagonal

  A31:

  6.5 in

  X9s Plus:

  5.85 in

• Rear camera layout

  A31:

  Triple

  X9s Plus:

  Single

• Depth

  X9s Plus: 1 mm thinner

  A31:

  8.3 mm

  X9s Plus:

  7.3 mm

• Release year

  A31:

  2020

  X9s Plus:

  2017

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. A31

   Height:

   163.9 mm

   Width:

   75.5 mm

   Depth:

   8.3 mm +1 mm versus X9s Plus

2. 2. X9s Plus

   Height:

   162.6 mm

   Width:

   78.9 mm +3.4 mm versus A31

   Depth:

   7.3 mm

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. A31

   Screen diagonal:

   6.5 in

   Aspect ratio (height:width):

   20:9

   Approximate rectangular screen area:

   102 cm²

2. 2. X9s Plus

   Screen diagonal:

   5.85 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   94.3 cm²

A31 has approximately 8.1% more rectangular screen area than X9s Plus.

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.