Oppo A31 vs Samsung Galaxy A7 (2017)

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

  Galaxy A7 (2017):

  OLED

• Weight

  A31: 6 g lighter

  A31:

  180 g

  Galaxy A7 (2017):

  186 g

• Width

  A31: 2.1 mm narrower

  A31:

  75.5 mm

  Galaxy A7 (2017):

  77.6 mm

• Screen diagonal

  Galaxy A7 (2017): 0.8 in smaller diagonal

  A31:

  6.5 in

  Galaxy A7 (2017):

  5.7 in

• Rear camera layout

  A31:

  Triple

  Galaxy A7 (2017):

  Single

• Height

  Galaxy A7 (2017): 7.1 mm shorter

  A31:

  163.9 mm

  Galaxy A7 (2017):

  156.8 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 +7.1 mm versus Galaxy A7 (2017)

   Width:

   75.5 mm

   Depth:

   8.3 mm

2. 2. Galaxy A7 (2017)

   Height:

   156.8 mm

   Width:

   77.6 mm +2.1 mm versus A31

   Depth:

   7.9 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. Galaxy A7 (2017)

   Screen diagonal:

   5.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   89.6 cm²

A31 has approximately 13.9% more rectangular screen area than Galaxy A7 (2017).

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.