Oppo A57 vs Panasonic T21

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

  T21: 27 g lighter

  A57:

  147 g

  T21:

  120 g

• Width

  T21: 9.4 mm narrower

  A57:

  72.9 mm

  T21:

  63.5 mm

• Screen diagonal

  T21: 1.2 in smaller diagonal

  A57:

  5.2 in

  T21:

  4 in

• Chipset

  A57:

  Qualcomm MSM8940 Snapdragon 435 (28 nm)

  T21:

  Mediatek MT6589 (28 nm)

• Depth

  A57: 1.5 mm thinner

  A57:

  7.7 mm

  T21:

  9.2 mm

• Height

  T21: 36.5 mm shorter

  A57:

  149.1 mm

  T21:

  112.6 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 +36.5 mm versus T21

   Width:

   72.9 mm +9.4 mm versus T21

   Depth:

   7.7 mm

2. 2. T21

   Height:

   112.6 mm

   Width:

   63.5 mm

   Depth:

   9.2 mm +1.5 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. T21

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

A57 has approximately 63.7% more rectangular screen area than T21.

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.