Oppo A57 vs Xiaomi Redmi 4a

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

  Redmi 4a: 15.5 g lighter

  A57:

  147 g

  Redmi 4a:

  131.5 g

• Width

  Redmi 4a: 2.5 mm narrower

  A57:

  72.9 mm

  Redmi 4a:

  70.4 mm

• Screen diagonal

  Redmi 4a: 0.2 in smaller diagonal

  A57:

  5.2 in

  Redmi 4a:

  5 in

• Memory variants

  At 32 GB storage

  A57:

  3 GB RAM

  Redmi 4a:

  2 GB RAM

• Chipset

  A57:

  Qualcomm MSM8940 Snapdragon 435 (28 nm)

  Redmi 4a:

  Qualcomm MSM8917 Snapdragon 425 (28 nm)

• Depth

  A57: 0.8 mm thinner

  A57:

  7.7 mm

  Redmi 4a:

  8.5 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. A57

   Height:

   149.1 mm +9.2 mm versus Redmi 4a

   Width:

   72.9 mm +2.5 mm versus Redmi 4a

   Depth:

   7.7 mm

2. 2. Redmi 4a

   Height:

   139.9 mm

   Width:

   70.4 mm

   Depth:

   8.5 mm +0.8 mm versus A57

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. A57

   Screen diagonal:

   5.2 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   74.5 cm²

2. 2. Redmi 4a

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

A57 has approximately 8.2% more rectangular screen area than Redmi 4a.

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.