Oppo A31 vs QMobile Noir Z7

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

  Noir Z7:

  OLED

• Weight

  Noir Z7: 82.3 g lighter

  A31:

  180 g

  Noir Z7:

  97.7 g

• Width

  Noir Z7: 8.1 mm narrower

  A31:

  75.5 mm

  Noir Z7:

  67.4 mm

• Screen diagonal

  Noir Z7: 1.7 in smaller diagonal

  A31:

  6.5 in

  Noir Z7:

  4.8 in

• Rear camera layout

  A31:

  Triple

  Noir Z7:

  Single

• Depth

  Noir Z7: 3.1 mm thinner

  A31:

  8.3 mm

  Noir Z7:

  5.2 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 +24.1 mm versus Noir Z7

   Width:

   75.5 mm +8.1 mm versus Noir Z7

   Depth:

   8.3 mm +3.1 mm versus Noir Z7

2. 2. Noir Z7

   Height:

   139.8 mm

   Width:

   67.4 mm

   Depth:

   5.2 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. Noir Z7

   Screen diagonal:

   4.8 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   63.5 cm²

A31 has approximately 60.6% more rectangular screen area than Noir Z7.

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.