Samsung Galaxy A31 vs Xolo Black 3GB

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

  Galaxy A31:

  OLED

  Black 3GB:

  LCD

• Width

  Galaxy A31: 3.5 mm narrower

  Galaxy A31:

  73.1 mm

  Black 3GB:

  76.6 mm

• Screen diagonal

  Black 3GB: 0.9 in smaller diagonal

  Galaxy A31:

  6.4 in

  Black 3GB:

  5.5 in

• Rear camera layout

  Galaxy A31:

  Quad

  Black 3GB:

  Dual

• Depth

  Black 3GB: 1.3 mm thinner

  Galaxy A31:

  8.6 mm

  Black 3GB:

  7.3 mm

• Height

  Black 3GB: 3.8 mm shorter

  Galaxy A31:

  159.3 mm

  Black 3GB:

  155.5 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. Galaxy A31

   Height:

   159.3 mm +3.8 mm versus Black 3GB

   Width:

   73.1 mm

   Depth:

   8.6 mm +1.3 mm versus Black 3GB

   Weight:

   185 g

2. 2. Black 3GB

   Height:

   155.5 mm

   Width:

   76.6 mm +3.5 mm versus Galaxy A31

   Depth:

   7.3 mm

   Weight:

   Unknown

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. Galaxy A31

   Screen diagonal:

   6.4 in

   Aspect ratio (height:width):

   20:9

   Approximate rectangular screen area:

   98.9 cm²

2. 2. Black 3GB

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

Galaxy A31 has approximately 18.6% more rectangular screen area than Black 3GB.

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.