BLU Vivo XL vs Oppo A31

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

  Vivo XL:

  OLED

  A31:

  LCD

• Weight

  Vivo XL: 26 g lighter

  Vivo XL:

  154 g

  A31:

  180 g

• Width

  A31: 1.2 mm narrower

  Vivo XL:

  76.7 mm

  A31:

  75.5 mm

• Screen diagonal

  Vivo XL: 1 in smaller diagonal

  Vivo XL:

  5.5 in

  A31:

  6.5 in

• Rear camera layout

  Vivo XL:

  Single

  A31:

  Triple

• Depth

  Vivo XL: 0.8 mm thinner

  Vivo XL:

  7.5 mm

  A31:

  8.3 mm

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. Vivo XL

   Height:

   155.3 mm

   Width:

   76.7 mm +1.2 mm versus A31

   Depth:

   7.5 mm

2. 2. A31

   Height:

   163.9 mm +8.6 mm versus Vivo XL

   Width:

   75.5 mm

   Depth:

   8.3 mm +0.8 mm versus Vivo XL

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. Vivo XL

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

2. 2. A31

   Screen diagonal:

   6.5 in

   Aspect ratio (height:width):

   20:9

   Approximate rectangular screen area:

   102 cm²

A31 has approximately 22.3% more rectangular screen area than Vivo XL.

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.