Samsung Galaxy A7 (2018) vs Samsung Galaxy M31

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

  Galaxy A7 (2018): 23 g lighter

  Galaxy A7 (2018):

  168 g

  Galaxy M31:

  191 g

• Width

  Galaxy M31: 1.7 mm narrower

  Galaxy A7 (2018):

  76.8 mm

  Galaxy M31:

  75.1 mm

• Screen diagonal

  Galaxy A7 (2018): 0.4 in smaller diagonal

  Galaxy A7 (2018):

  6 in

  Galaxy M31:

  6.4 in

• Chipset

  Galaxy A7 (2018):

  Exynos 7885 Octa (14 nm)

  Galaxy M31:

  Exynos 9611 (10nm)

• Depth

  Galaxy A7 (2018): 1.4 mm thinner

  Galaxy A7 (2018):

  7.5 mm

  Galaxy M31:

  8.9 mm

• Release year

  Galaxy A7 (2018):

  2018

  Galaxy M31:

  2020

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 A7 (2018)

   Height:

   159.8 mm

   Width:

   76.8 mm +1.7 mm versus Galaxy M31

   Depth:

   7.5 mm

2. 2. Galaxy M31

   Height:

   159.2 mm

   Width:

   75.1 mm

   Depth:

   8.9 mm +1.4 mm versus Galaxy A7 (2018)

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 A7 (2018)

   Screen diagonal:

   6 in

   Aspect ratio (height:width):

   18.5:9

   Approximate rectangular screen area:

   91.4 cm²

2. 2. Galaxy M31

   Screen diagonal:

   6.4 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   100.5 cm²

Galaxy M31 has approximately 10% more rectangular screen area than Galaxy A7 (2018).

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.