LG GT540 Optimus 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.

• Weight

  GT540 Optimus: 64.5 g lighter

  GT540 Optimus:

  115.5 g

  A31:

  180 g

• Width

  GT540 Optimus: 21 mm narrower

  GT540 Optimus:

  54.5 mm

  A31:

  75.5 mm

• Screen diagonal

  GT540 Optimus: 3.5 in smaller diagonal

  GT540 Optimus:

  3 in

  A31:

  6.5 in

• Rear camera layout

  GT540 Optimus:

  Single

  A31:

  Triple

• Depth

  A31: 4.4 mm thinner

  GT540 Optimus:

  12.7 mm

  A31:

  8.3 mm

• Height

  GT540 Optimus: 54.9 mm shorter

  GT540 Optimus:

  109 mm

  A31:

  163.9 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. GT540 Optimus

   Height:

   109 mm

   Width:

   54.5 mm

   Depth:

   12.7 mm +4.4 mm versus A31

2. 2. A31

   Height:

   163.9 mm +54.9 mm versus GT540 Optimus

   Width:

   75.5 mm +21 mm versus GT540 Optimus

   Depth:

   8.3 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. GT540 Optimus

   Screen diagonal:

   3 in

   Aspect ratio (height:width):

   3:2

   Approximate rectangular screen area:

   26.8 cm²

2. 2. A31

   Screen diagonal:

   6.5 in

   Aspect ratio (height:width):

   20:9

   Approximate rectangular screen area:

   102 cm²

A31 has approximately 280.6% more rectangular screen area than GT540 Optimus.

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.