Oppo A31 vs QMobile Noir i9

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

  Noir i9: 13 g lighter

  A31:

  180 g

  Noir i9:

  167 g

• Width

  Noir i9: 1.5 mm narrower

  A31:

  75.5 mm

  Noir i9:

  74 mm

• Screen diagonal

  Noir i9: 1.5 in smaller diagonal

  A31:

  6.5 in

  Noir i9:

  5 in

• Rear camera layout

  A31:

  Triple

  Noir i9:

  Single

• Depth

  A31: 1 mm thinner

  A31:

  8.3 mm

  Noir i9:

  9.3 mm

• Height

  Noir i9: 17.9 mm shorter

  A31:

  163.9 mm

  Noir i9:

  146 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. A31

   Height:

   163.9 mm +17.9 mm versus Noir i9

   Width:

   75.5 mm +1.5 mm versus Noir i9

   Depth:

   8.3 mm

2. 2. Noir i9

   Height:

   146 mm

   Width:

   74 mm

   Depth:

   9.3 mm +1 mm versus A31

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. Noir i9

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

A31 has approximately 48% more rectangular screen area than Noir i9.

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.